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marylin monroe
Showing posts with label bench press. Show all posts
Showing posts with label bench press. Show all posts

Exercise Round-Up: HIIT Prevents Angina; Stretching Reduces IGF-1 & Strength Gains; Cardio + Weights Lower TNF-Alpha; Protein Doesn't Works W/ Glucose Depletion; Polarization More Effective Than Threshold Training

That's (hopefully) not the way you want to "kick off" your year 2013, is it? So keep the booze at bay and party away, tonight ;-)
There are three things of which I would hope that they are on the top ranks in the things you are planning to do in 2013. And aside from proposing to your girlfriend, becoming a parent, graduating from whatever you are currently studying and keeping or, in the unfortunate case you don't have one, getting a job no other goals should be ranked in this must to in 2013 category: Work out, eat health and sleep deep and sufficiently. Against that background today's exercise round-up, which comprises all the few newsworthy papers that have been published during or shortly before the holiday season can actually be regarded as a means of orientation as far as practical realization of your best intentions for 2013 are concerned.



  • HIIT in the evening will keeps the heart attack away (Morikowa. 2012) -- Having a mild angina (coronary spasm was documented and no severe organic lesions were found) is not just no excuse for not working out, the 26 patients in a recent study that was conducted by a team of researchers from Kashiwara City, Japan, clearly shows that the number of spasms (=perceived heart attacks) was reduced from 2 to ZERO (average numbers) per 5 days in the men and women who performed an aerobic interval exercise training in the afternoon.

    Figure 1: Selected significantly improved health markers before and after the 3x workout short-term intervention involving 19 male and 7 suffering from angina (Morikawa. 2012)
    The protocol was performed on three consecutive days. After warming up thoroughly (10min), all subjects performed four sets of 3 min intervals at 75-85% of their heart rate reserve. The work to rest ratio was 1:1. In other words each of the intervals was followed by a phase of 3 minutes of active recovery. The whole session was concluded by a 5-10 minutes cool down.

    In conjunction with the initially mentioned benefits in terms of the recurrence of angina attacks the data in figure 1 should actually suffice to motivate you and lazy relatives to invest this small amount of time into the length and quality of your life- don't you think so?
  • Figure 2: The group of recreational trained young men (~29 years) that did no stretching at all had slightly, but significantly elevated IGF-1 levels (µg/L) after the workout (Borges. 2012).
    Stretching blunts acute IGF-1 response and 10 week strength gains (8RM test) (Borges. 2012) -- Now, hormonal responses to exercise are certainly not everything, the fact that the non-stretchers (OST) did yet also gain significantly more strength on the bench (19% vs. 7% and 5% in the static stretching during warm-up (SBST) and the stretching before each set (SDST) groups, respectively), the leg press, leg extensions and leg curls should yet call your attention, Mr. and Mrs. "I am so freaking professional that I stretch in between every set" maniacs - after 10 weeks of training the guy next to you who sticks to a handful of warm-up sets for injury prevention is going to outperform you.

    Remember this is not about not warming up and making sure that you don't hurt yourself, it's just even more more evidence that the die-hard belief that static stretches are beneficial (which was btw. also the research hypothesis of the Portuguese and Brazilian scientists) is dated text book knowledge.
  • Again: Not strength or, but strength and aerobics is the way to go (Ho. 2012) -- While the medical establishment is still reluctant to accept the notion that strength and aerobic training must go hand in hand and many muscle heads still plead, they would lose muscle or hamper their gains, when they hopped onto a treadmill from time to time. The evidence is clear: The advantages are simply non-negligible - for the gymbro trying to look muscular (which requires a low body fat percentage if you don't want to look simply ludicrous), and the average Australian (pre-)obese in a recently published study by Ho, Dhaliwal, Hills, and Pal who found that ...
    "Twelve weeks of moderate-intensity aerobic, resistance, but mainly combination exercise training decreased TNF-α in overweight and obese individuals compared to no exercise. Therefore, combination exercise training may be physiologically relevant in decreasing the risk of developing chronic diseases." (Ho. 2012)
    The exercise interventions were either 30 min of aerobic exercise on a treadmill (60 % heart rate reserve; HRR estimated using the Karvonen equation: 220 - age - resting heart rate), 30 min of resistance exercise (four sets of 8–12 repetitions at 10-RMlevel of leg press, leg curl, leg extension, bench press, and rear deltoid row, with each set completed in approximately 30 s with 1-min rest) or a combination of 15 min of aerobic exercise and 15 min of resistance exercise (two sets of the above exercises).
    Figure 3: The combined training did not only result in a maximal suppression of TNF-alpha, the latter was also highly correlated with the reduction in body fat (esp. in the belly area; cf. Ho. 2012)
    "Starting workload levels for each piece of equipment were tested by participants and if more than 10 repetitions were achieved, the weight was increased and after a short rest participants tried again. Likewise, if less than eight repetitions were achieved, the weight was decreased and after a short rest participants tried again. Participants reported to the Curtin Fitness Centre 3 days a week to complete the required exercise and either exercised at home the other 2 days or at the fitness center.

    If exercises were completed at home, dumbbells (adjustable weight 1.5–10.5 kg) were provided for resistance exercises (three sets of 10 repetitions for biceps curls, lunges, dumbbell raise, calf lift, and triceps extension for resistance group while the combination group did two sets of biceps curls and lunges and one set for dumbbell raise, calf lift, and triceps extension; back extension, push ups, and sit ups exercises were also included). Treadmills were equipped with heart rate sensors and participants were instructed to increase weight loads by 2.5-kg increments when they could complete more than 12 repetitions." (Ho. 2012)
    Maybe not the perfect program for you, but I bet you know someone who "wants" to make room for 30 min of exercise in 2013, don't you? Ah,... don't tell them that 67-74% compliance was enough to elicit a 30%+ decrease in TNF-alpha and finally allow the participants to drop body fat, though ;-)
  • You can have your peri-workout protein even if you want to exploit the AMPK & PGC-1 bonus of training glycogen depleted (Taylor. 2012) -- Actually I have discussed that in the Intermittent Thoughts more than a year ago, but since the debate just goes on forever, I thought it may be worth posting the results of a recent study pertaining to the issue of peri-workout protein ingestion and its purported (yet non-existent!) negative side effects on the beneficial AMPK response to glycogen depleting exercises (note: that's not the AMPK that's increased in your brain, when you starve yourself for longer time periods, the "bad" one that will make you ravenously hungry, induce overeating and shut down your metabolism).
    As long as you remain glycogen depleted protein has no effect on the beneficial part of the exercise induced AMPK expression (read more)
    "After performing a glycogen-depleting protocol the evening before, the subsequent morning ten active men performed 45 min steady-state cycling at 50 % of peak power output (PPO) followed by an exercise capacity test (1-min intervals at 80 % PPO interspersed with 1-min periods at 40 % PPO).

    In a repeated measures design, subjects consumed 20 g of a casein hydrolysate solution (PRO) 45 min before exercise, 10 g during and a further 20 g immediately post-exercise, or an equivalent volume of a non-calorie taste matched placebo (PLA)." (Taylor. 2012)
    In view of the fact that the post-exercise muscle glycogen was not different between the protein supplementation and the "on empty" trial, it is not exactly surprising that the p-AMPK levels increased threefold and the PGC-1mRNA increased sixfold in the 3h after the workout. And even the blunted increase in eEF2 activation is probably only a sign that the muscle started taking up protein right away and thus did not have ask for more after the workout - That said,Taylor et al. are right to point out that
    "athletes who deliberately incorporate training phases with reduced muscle glycogen into their training programmes may consume protein before, during and after exercise without negating signalling through the AMPK cascade." (Taylor. 2012)
    Ah, don't overlook the words "training phases" - remember what I wrote about training glycogen depleted in the context of the PGC-1 a-4 post and doing cardio before a workout? It's an intensity technique and not a necessity for everyone on every training day in 2013. Plus, glycogen depletion does require repletion! Running around 24/7/365 is not an option for 2013.
  • Aside "polarization" your cycling performance can also benefit from baking soda & beta alanine (read more)
    Polarize your training and optimize your gains (Neall. 2012) -- What makes HIIT so effective? The cyclicity of high and low intensity, right! It's the same cycle of ups and downs you find everywhere in nature. Against that background it should actually not surprise you that Neal et al. have now found male cyclist record greater training improvements on a polarised model exercise regimen (6.4/hrs per week; 80%, 0%, 20% of training time in low, moderate and high intensity zones) than on a threshold model (7.5hrs per week; 57%, 43%, 0% training intensity distribution).

    According to the researchers from the University of Stirling, both groups recorded performance improvements, yet those in the group that followed the polarized regimen saw 5% greater increases in peak power output, 7% greater increases in lactate threshold, and 48% greater increases in high-intensity exercise capacity.



Thats it for today and in fact for the year 2012. The last one of 365 new posts here at the SuppVersity and probably twice or thrice as many on the SuppVersity Facebook Wall (it would be ~5-6x more on Facebook, if I had started posting short news on Facebook in January already)... Apropos, if you want some additional news before the turn of the year you should make sure to visit www.facebook.com/SuppVersity, today, to read and learn more about.
  • A brief history of anti-hangover cures: The ancient Assyrians swore by Ground birds' beaks and myrrh. Raw eel and bitter almonds is a recipe from Europe that was popular during the Middle Ages. The Mongolians were more into  sheep's eyes, while the Chinese must have listened to Thursday's installment of On Short Notice and went with green tea. Us Germans like it traditional (not me though) and eat "Tom's breakfast" (Katerfrühstück), a postbinge breakfast with Bismark Herring, pickles, rollmops and/or sauerkraut (this stuff does work, by the way, 'cause it helps replenish the lost electrolytes).
    Harvard Health Letters headline: "The new medicine: muscle strength. It's not just for bodybuilders. Strength training is critical for all of us." (read more)
  • Creatine reduces total antioxidant defenses? Scientists confirm for the 1012532x that creatine works and to make sure somebody even reads their study they overemphasis an increase in uric acid and decreases in TAS in the creatine supplementation group - a reason for concern? (read more)
  • Case report: Type I diabetes remission without insulin therapy on gluten-free diet in a 6-year old boy with type 1 diabetes mellitus. (read more)
  • Got Acne? Insulin resistance makes men break out. You better don't rely on fasted values, but get an OGGT ASAP(!) cause it turned out to be the most accurate independent predictor of acne at multivariate analysis. (read more)
I guess the one thing that remains to be said now is:  

HAPPY NEW YEAR everyone! 

Don't party too wild, and if you do, drink your green tea before the binge - this is (contrary to the historical advice in the box above) indicated by the latest science you should remember from Thursday's Science Round Up on Super Human Radio ;-)

References:
    • Borges Bastos CL, Miranda H, Gomes de Souza Vale R, de Nazaré Dias Portal M, Gomes TM, da Silva Novaes J, Winchester JB. Chronic Effect Of Static Stretching On Strength Performance And Basal Serum Igf-1 Levels. J Strength Cond Res. 2012 Dec 18.
    • Ho SS, Dhaliwal SS, Hills AP, Pal S. Effects of Chronic Exercise Training on Inflammatory Markers in Australian Overweight and Obese Individuals in a Randomized Controlled Trial. Inflammation. 2012 Dec 19.
    • Morikawa Y, Mizuno Y, Harada E, Katoh D, Kashiwagi Y, Morita S, Yoshimura M, Uemura S, Saito Y, Yasue H. Aerobic interval exercise training in the afternoon reduces attacks of coronary spastic angina in conjunction with improvement in endothelial function, oxidative stress, and inflammation. Coron Artery Dis. 2012 Dec 14.
    • Neal CM, Hunter AM, Brennan L, O'Sullivan A, Hamilton DL, De Vito G, Galloway SD. Six Weeks Of A Polarised Training Intensity Distribution Leads To Greater Physiological And Performance Adaptations Than A Threshold Model In Trained Cyclists. J Appl Physiol. 2012 Dec 20.
    • Taylor C, Bartlett JD, van de Graaf CS, Louhelainen J, Coyne V, Iqbal Z, Maclaren DP, Gregson W, Close GL, Morton JP. Protein ingestion does not impair exercise-induced AMPK signalling when in a glycogen-depleted state: implications for train-low compete-high. Eur J Appl Physiol. 2012 Dec 23.

    Power Up Your Bench With Maximal Velocity on the Bench: Almost 2x Greater Strength Gains Compared to 50%

    Bench press bros, listen up! You better push that weigh up fast, if you want to make maximal strength gains - O-lifting says "Hello" ;-)
    Do you train deliberately slow? If so, you may be limiting your strength gains. A recently published paper in the European Journal of Sports Science shows: "Movement velocity can be considered a fundamental component of RT intensity, since, for a given %1RM, the velocity at which loads are lifted largely determines the resulting training effect" (Gonzalez-Badillo. 2014).

    Before we take a closer look at how "large" the effect of training the training velocity actually is, I would like to invite you to take a closer look at the design of the corresponding experiment that was conducted at the Pablo de Olivade University in Seville, Spain.
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    The experiment was designed in an attempt to clarify the influence of repetition velocity on the gains in strength consequent to isoinertial resistance training. To this ends, the scientists conducted two separate studies:
    • Study I compared the effect of two distinct RT interventions on strength gains using movement velocity as the independent variable. Two groups that only differed in actual repetition velocity (and consequently in time under tension, TUT): maximal intended velocity (MaxV) vs. half-maximal velocity (HalfV) trained three times per week for 6 weeks using the bench press (BP) exercise, while the remaining programme variables (number of sets and repetitions, inter-set rests and loading magnitude) were kept identical.
    • Study II was a complementary study that aimed to analyze whether the acute metabolic (blood lactate and ammonia) and mechanical response (velocity loss) was different between the type of MaxV and HalfV protocols previously used in Study I
    Of the 24 men who volunteered to participate in Study I, only 20 successfully completed the entire study (mean ± s: age 21.9 ± 2.9 years, height 1.77 ± 0.08 m, body mass 70.9 ± 8.0 kg). Therefore, the scientists recruited 10 additional participants (25.3 ± 3.4 years, 1.77 ± 0.08 m, body mass 75.2 ± 8.7 kg) for the follow up study (Study II).
    High speed training works, as long as you maintain maximal velocities: F. Pareja-Blanco and his colleagues from the Pablo de Olavide University and the Instituto Navarro de Deporte y Juventud (INDJ) in Spain report in another recently published paper that doing squats with maximal velocity concentrics lead to significantly greater improvements in maximum strength and that "[m]ovement velocity seemed to be of greater importance than time under tension for inducing strength adaptations" (Pareja-Blanco. 2014). Similar results had been observed by biceps curls (9.7% with fast, no gains with slower concentric contractions | Ingebrigtsen. 2009). In studies with untrained subjects, on the other hand, similar benefits have not been observed (Pereira. 2007) - a difference that may be explained by the inability of someone who has never bench pressed or squatted before to actually push the bar at maximal velocity while, at the same time, keeping proper form. Another factor that may explain the existing differences between pertinent studies may be related to whether the exercise was performed to failure. In that case, the prescribed velocity cannot be maintained for all reps, so that the differences between the high speed and the regular / slow speed groups vanish.
    The participants were physically active sport science students with 2–4 years of recreational RT experience in the bench press exercise - a fact that may be important if you take into consideration what I wrote about the Pereira study in the red box above.
    Figure 1: Schematic timeline of study design (Gonzales-Badillo. 2014)
    "Based upon pre-test 1RM strength performance, participants were allocated to one of the two groups following an ABBA counterbalancing sequence: MaxV (n = 9) or HalfV (n = 11) [the non-random allocation to the two groups ensured that there was no significant strength difference between the two groups at the beginning of the study].

    The only difference in the RT programme between groups was the actual velocity at which loads were lifted: maximal intended concentric velocity for MaxV vs. an intentional half-maximal concentric velocity for HalfV [note the difference between doing each rep at maximal velocity and trying to do so!]."
    Both groups trained three times per week, on non-consecutive days, for a period of 6 weeks using doing nothing but bench presses on each of the workout days. In that, Study I and II were performed 3 weeks apart using a different sample of participant.
    Figure 2: Changes in bench press 1-RM over the course of Study I. The relative changes are 16% increase in the maximal 9% increase in the 50% velocity group (Gonzales-Badillo. 2014)
    As you can see in Figure 2 the scientists are right, when they say that it seems as if "[m]ovement velocity can be considered a fundamental component of RT intensity, since, for a given %1RM, the velocity at which loads are lifted largely determines the resulting training effect" (Gonzalez-Badillo. 2014). A corresponding difference in lactate production during the workouts was yet detected only if the exercise was performed at low intensities and high speed, i.e. 3 × 8 with 0.79 m/s at ∼60% of the 1RM and with 3 × 6 with 0.62 m/s a ∼70% of the 1RM.
    Figure 3: Root-mean-square amplitude (RMS amp.) before (initial) and after fatigue under varying speed-controlled conditions (slow, medium, and fast) and intensities (40–80% 1RM) for pectoralis major (a), anterior deltoid (b) and triceps medial head (c). Results show mean ± standard deviation for 13 subjects (Sakamoto. 2012).
    Bottom line: It appears unlikely that the small changes in lactate production are what's responsible for the superiority of maximal (intended) velocity contractions as strength builders. Rather than that it would appear logical to assume that the muscle fiber recruitements between fast and slow contractions differ. An assumption that is in line with the results of a 2012 study by Sakamoto et al.

    In said study, the Japanese researchers determined the muscle activations of the pectoralis major at varying lifting speeds and intensities during bench presses and found the maximal velocity to be highly superior during the initial phase of the training. When the fatigue set in and the subjects were no longer able to perform at a maximal velocity, the benefits vanished (see Figure 3) - an observation that is in line with my previous elaborations on the differences between the existing comparisons of the effectiveness of working out at different velocities in the red box. Accordingly, the results of the study at hand may not be applicable for those of you who like to peg out under the bar and/or crawl out of the gym after a workout that was long and intense enough to trigger a near-death experience | Comment on Facebook!
    References:
    • González-Badillo, Juan José, et al. "Maximal intended velocity training induces greater gains in bench press performance than deliberately slower half-velocity training." European journal of sport science ahead-of-print (2014): 1-10.
    • Ingebrigtsen, Jørgen, Andreas Holtermann, and Karin Roeleveld. "Effects of load and contraction velocity during three-week biceps curls training on isometric and isokinetic performance." The Journal of Strength & Conditioning Research 23.6 (2009): 1670-1676.
    • Pareja-Blanco, F., et al. "Effect of Movement Velocity during Resistance Training on Neuromuscular Performance." International Journal of Sports Medicine EFirst (2014).
    • Pereira, Marta Inez Rodrigues, and Paulo Sergio Chagas Gomes. "Effects of isotonic resistance training at two movement velocities on strength gains." Revista Brasileira de Medicina do Esporte 13.2 (2007): 91-96.
    • Sakamoto, Akihiro, and Peter James Sinclair. "Muscle activations under varying lifting speeds and intensities during bench press." European journal of applied physiology 112.3 (2012): 1015-1025.

    "Just One More Set" (2/2): Three Sets of Three Exercises Three Times Per Week - High Volume Can Work. With Appropriate Rest Also to Build Strength & Power

    High , not insane (!) volume training can be productive.
    I hope that you have already being waiting for this post, so I'll try to cut myself short and get right to the facts. In yesterday's first part of "Just One More Rep" it turned out that a higher training volume sucks, when it comes to what is often thought would be its prerogative, i.e. using strength training to induce excess post-exercise oxygen consumption (EPOC) and lean out.

    In view of these results you could argue that it would be totally logical that a higher training volume cannot be ideal for muscle gains either. After all those require energy and if the RMR does not go up, this would suggest that there was little to repair and supercompensate. A recent study (Naclerio. 2012) does yet refute this already intrinsically non-stringent considerations.

    High volume can work! As long as it's high, and not simply insane.

    The study was conducted by researchers from the University of Greenwich, the College of New Jersey, the European University of Madrid and the Appalachian State University and it has one caveat I don't want to hold back to the discussion of the results at the end of this post (although it will reappear and be addressed there): Though we are dealing with college athletes (20 male soccer and 12 female volleyball college players)  none of them had previous strength training experience. This may not be exactly representative of a dumb- & barbell god like you are *rofl*, but is at least better than taking totally untrained participants, where you never know if the the higher volume was too demanding for their musculature or their overall conditioning.

    Moreover, the separate analysis of upper and lower body strength gains could shed some more light on whether or not legs do in fact need some more hammering to adapt than the smaller musculature of the upper body (cf. "Three is more than one").

    Who and at which intensity for how many sets and reps?

    The 32 athletes (age = 23.1± 1.57 yrs, injury free) with at least 3 years of experience as regular team sports practitioner were randomly assigned to one of four groups (all performed 8 reps at 75% of their 1-RM max per set!):
    • low volume(LV), 1 set per exercise and 3 sets per muscle group per session;
    • moderate volume (MV), 2 sets per exercise and 6 sets per muscle group per session;   
    • high volume (HV), 3 sets per exercise and 9 sets per muscle group; 
    and of course, the obligatory non-exercise control group (this leaves us with only 8 subjects per group, so don't expect all too meaningful p-values). Before and after the 6 week each subject underwent a progressive resistance test aimed to determine the 1RM and the maximal average power produced from light to heavy weights on two upper body exercises (bench press (BP) and upright row (UR)) and one lower body exercise (parallel squat (SQ)). The individual tests, were structured as follows:
    "After a standardized warm up, each subject started the PRT  which consisted of 8 sets of 2 repetitions performed with maximal acceleration, alternating with rest periods between 2 min for the light load, 3 to 4 min for the moderate load and 5 minutes for the higher load. The 1st and 2nd sets were performed with a light weight (~25 to 45% of estimated 1RM), the 3rd and 4th sets with a medium weight (~50% to 65% of estimated 1RM), the 5th and 6th sets with a medium to heavy weight (~ 70% to 80% of estimated 1RM), and the 7th and 8th sets with a maximum or near maximum weight (~85% to 100% of estimated 1RM)." (Naclerio. 2012)
    For the subsequent analysis the scientists picked those sets and reps, on which the subjects had lifted with the greatest average power (no sure whether this was the best idea, but alas).

    The workouts - chest, shoulders, biceps + legs, back, triceps

    It stands to reason that the exercises that were part of the testing procedure, i.e. bench presses (BP) and upright rows (UR), which were performed using Olympic bars and plates, as well as the classic back squat (till thighs were parallel to the floor, SQ), which was performed on a Smith machine, "in order to standardize exercise", were also the core exercises of the  actual workouts, the participants performed during the 6-week training phase.
    Day 1 (chest, shoulders, biceps)Day 2 (legs, back, triceps)
    Bench press
    Incline Bench press
    Dumbbell Fly
    Upright Row
    Lateral Raise
    Posterior Lateral Raise
    Barbell Biceps Curl
    Dumbbell Biceps Curl
    Machine Biceps Curl
    Smith Machine Parallel Squat
    Leg Press
    Knee Extension
    Lat Pull down
    Seated Row
    1 Arm Dumbbell Row
    Machine Triceps Extension
    Standing Triceps Pushdown
    1 Arm Triceps Extension
    Table 1: Workout schedule, for set and rep scheme see text above .
    Overall each subject took part in 18 training session, i.e. 3 per week. The training sessions were scheduled on non-consecutive days in a day 1 v.s day 2 fashion, with day 1 being 'chest + shoulder + biceps day ' and day 2 being 'legs + back  + triceps day'. Given the aforementioned volume prescriptions you see that the actual routines were actually more or less representative of what you will see the relatively sane part of the trainees actually do at the gym.
    Figure 1: Relative change (in % of baseline) in 1RM and maximal average power during the 6-week intervention period (Naclerio. 2012)
    If you take into account that these were the first real lifting sessions for most of the study participants, the same can be said of the strength gains I plotted relative to the respective baseline levels in figure 1. In fact, the multivariate analysis the scientists conducted showed that all training protocols yielded statistically significant increases in strength.

    When gains are the goal: Volume (or stimulus?) does count!

    In contrast to the EPOC values, of which we have learned yesterday that they do by no means benefit from increases in total workout volume, Naclerio et al. did actually observe a clear trend toward greater improvement in strength and power with the high vs. the low and even the medium volume protocol (at a similar overall volume, though with different exercises in a classic split routine). Thte most evident downsides to the lower volume programs, were
    • no significant increases in the 1-RM squat in both the low and medium volume group, and
    • no significant increases in the average power during the bench press,
    where both, the medium (MV) and high volume (HV) protocols achieved significant before vs. after differences of 10% and 16%, respectively.

    If you look at the overall pattern in figure 1 once more, there is still no clearcut picture emerging. While it does in fact appear as if the high volume routine appears to be in front in the majority of 1-to-1 comparisons, this is mainly based on an analysis of the improvements in maximum strength. With respect to the average power measurements, on the other hand, the authors are (partly) right to point out that you could argue in favor of both the low and medium volume protocols as being "better strategies for enhancing lower body or upper body average power performance." (Naclerio. 2012)

    So is high volume the way to go - or no?

    For the subjects who participated in this study (and maybe some of you), the last mentioned equivalence, if not superiority of the low(er) volume routines (1-2 sets per exercise) the low and medium volume training do in fact appear to be superior to support their regular sports specific training program. After all, mere strength is not so much of an issue in either soccer or volleyball; and given the fact that at least for soccer the lower limb power is what really counts, a low volume strength training approach would, aside from obviously being highly economic, also yield the most pronounced sport specific performance increases.

    It stands to reason: If neither brute strength nor tons of muscle are your goal and strength training is just an adjunct to your sports-specific training, high volume sucks!
    Whether the surprising superiority of the low volume routine as a 'average strength builder'  for soccer and volleyball players does mean that legs need less, rather than more work than the chest, which appears to like the constant hammering, is however highly questionable. In fact, this is where the bias of previous training comes into play. For both volleyball and soccer players, the latter does obviously include a hell lot of 'leg work' and while you do push-ups in soccer (and I guess volleyball as well), there is no training component that would correspond to the sprinting and HIIT exercises that involve the legs only. Now, of the latter you know that they can in fact have 'anabolic' effects on skeletal muscle. These may not be so immediate as they would be for someone doing a BB-like hypertrophy training, but they accumulate over time; and with three years of more or less 'professional' training in their respective sports, we may savely assume that all participants had their share of muscular hypertrophy in the quads, glutes and hams.

    Moroever, skeletal muscle hypertrophy and strength gains require a certain degree of overload. Allegedly, when the training induced or the overall stress becomes too much, your training won't yield the desired results either. For someone whose main goals are skeletal muscle hypertrophy and strength gains, and who does not compete in any other sports that requires separate training,  the data from the study at hand would yet still support Arnold's way of doing "just one more set " - as long, as this is done in conjunction with adequate rest not just in-between sets, but in-between workouts, as well!

    I can however guarantee you that doing 27 sets today and another 27 tomorrow, just to follow that up by some HIIT on day 3, in order to have a "day off" without a guilty conscience and to be "recovered" to do chest shoulders and biceps, your day 1 on day 4 again (thus starting another "cycle"), will yield neither muscle, nor strength gains. It will simply burn you out and pave your way right into the Athletes' Triad.

    References:
    • Naclerio F, Faigenbaum AD, Larumbe-Zabala E, Perez-Bibao T, Kang J, Ratamess NA, Triplett NT. Effects of different resistance training volumes on strength and power in team sport athletes: a pilot study. J Strength Cond Res. 2012 Oct 5.

    VPX Pre- & Post-Workout Nutrition Gets "Sponsored" Scientific Approval: +4% Lean Mass, -6% Body Fat, +13% Upper and +21% Lower Body Strength in 29 Days

    Image 1: Supplemental double-whammy. VPX' now
    "scientifically proven" pre- & postworkout products
    This is one of those cases, where I cannot decide whether I should applaud VPX or just shake my head... the scientist in me says: "Hey, you know how that is - with a research grant from the government cutting edge science is impossible, especially if you want to investigate something as 'profane' as building muscle". The cynic skeptic, on the other hand, whispers: "Come on, what results would you expect, if the study was financed by the producer of the supplement under scrutiny?" I guess I will applaud skeptically and exercise special caution in my analysis of the latest study from the Department of Health and Performance at Baylor University (Willoughby. 2011).

    As in previous studies (Willoughby. 2007; Willoughby. 2009), Darryn S. Willoughby and his colleagues availed themselves of a buckload of VPX supplements and recruited 19 previously recreationally active, yet untrained (*) men with an average age of 22.8 +/-4.67 years, a height of 179.5 +/-6.38 cm and a total body mass of 79.1 +/-16.13 kg for another study into the effects of two supplements, which are supposed to "advance you to the next level of fitness" (VPX. 2011). Strength and body composition (body fat measured reliably by DEXA, not body-impedance), venous blood sampling and muscle biopsies were performed on day 0 and day 29 of the 4-week study period, in the course of which the participants underwent a standardized resistance training protocol (upper-/lower-body split, 4x à week), which mirrored the one that had been used in Willoughby. 2009 already (*).
    Figure 1: Illustration of the training regimen (based on Willoughby. 2011)
    The bodybuilding-type beginner 2x split training regimen is unquestionably a huge plus of the study (cf. figure 1). Performed twice a weak, this is what real world training would look like and so that it stands out of question that the results of the study will translate into practice - at least for everyone who has not touched a dumbbell more than thrice a week within the last 12 and abstained from all sorts of performance enhancing supplements and drugs within the last 3 months (*).

    The NO Shotgun approach to protein NO SyntheSize??? 

    Figure 2: Ingredient profiles of
    No Shotgun and No SyntheSize
    More important than the identical training regimen was yet obviously the supplementation protocol, to which the participants were assigned in a double-blind randomization process (on a side note: "double-blind" means that not only the subjects, but the scientists, as well, did not know which participants received the placebo and which ones the VPX products). While half of the subjects consumed a maltodextrose placebo (27g pre, 27g post workout), the subjects in the "NOSS" group consumed the same amount of NO Shotgun and NO SyntheSize as their pre- and posworkout supplement, respectively. Now, as the names imply, both supplements are intended to increase nitric oxide production and protein synthesis, yet with a focus on the former in NO Shotgun that is loaden with arginine and a heap of stimulants and a focus on the latter in NO SyntheSize, the composition of which is pretty similar (cf. figure 2), yet without the "Redline Energy & Meltdown Fat Burning Technology" ;-)

    Although there were no specifically dietary guidelines, the research did at least collect some nutritional data based on a 4-day questionnaire all participants had to answer at the beginning and end of the study. While there was a slight reduction in the total caloric intake in the carb group (interestingly mainly from carbohydates), neither the intra-group changes, nor the inter-group differences reached statistical significance.

    More muscle, less fat! Trainee, what more can you ask for?

    That there were no differences is yet something you cannot say of the changes in body composition the study participants underwent in the course of this 28-day intervention.
    Figure 3: Relative changes (compared to baseline) in body composition after 16 strength training sessions in 28 days with either 54g of maltodextrin or 27g of NO Shotgun and 27g NO Synthesize pre- and postworkout (Willoughby. 2011)
    As a passing view of the relative changes (compared to baseline) in figure 3 show, the NOSS group (receiving NO Shotgun prior and NO SyntheSize post workout) registered significantly more pronounced elevations in fat free mass (p<.023 indicates that the chances that this was sheer coincidence are 23%) and - contrary to the carbohydrate group - lost -6% of their body fat, while the carb eaters added another 2% of adipose tissue to their love-handles.
    Figure 4: Changes in upper and lower body strength (in kg/kg body weight during bench press and leg press at 1RM) after 16 strength training sessions in 28 days with either 54g of maltodextrin or 27g of NO Shotgun and 27g of NO Synthesize pre- and postworkout (Willoughby. 2011)
    Interestingly, the lean mass increase went hand in hand with likewise (statistically) significantly greater (p-values see figure 4) increases in both upper (+13% vs. +1%) and lower (+21% vs. +11%) strength in the subjects in the NO Shotgun + NO SyntheSize groups.
    * you may have wondered what all the asterisks in the previous paragraphs meant... well, they indicate specificities in the study design detractors may call "precautions that ensure that the VPX supplements are sitting pretty" ... I mean the exact same supplementation protocol performed on a bunch of veteran bodybuilders would probably not have elicited any measurable effects on body composition - keep that in mind when you interpret the results.
    Now, it obviously should not surprise you that the protein (and leucine) loaden and creatine, beta-alanine spiked workout supplements outperform simple sugar water. It is thus more interesting to take another look at the data from the 2009 "NO Shotgun only"-study, Willoughby et al. have done (Willoughby. 2009). On the exact same training protocol, yet with only 27g of NO Shotgun or placebo 30min preworkout, the participants lost less body fat (-1.21%), but gained the exact same ~4% of lean mass and comparable increases in bench press and leg press 1RM (+8.82% and +18.4%, respectively).

    Scientifically proven ingredients make scientifically proven products

    I leave it up to you whether or not the results of this study will influence your next supplement purchase - after all, even the VPX guys will be aware that their supplements are not so unique that intelligent people like you would not be able to identify the key ingredients in their products (EAAs, hydrolized protein, creatine, beta alanine, some workout-boosting stimulants, etc.) and realize that there are way more than those two products which would probably have produced identically (within statistical margins) results, if, and here we've come full circle, if their respective manufacturers had the money and the balls to do scientific studies on their products.

    Training for Size & Strength - Does the Rest Matter? Study Finds 7-9% Greater Increase in Muscle Size With Decreasing Rest Periods.

    Image 1: If you want to build Arnold-esque arms you better not sit around too long in-between your sets.
    "Short rest periods to burn fat, medium rest periods to build muscle and long rest periods to build strength" - it's actually pretty likely that one of your trainers, gym buddies or fatherly mentors told you something along those lines in the past. In view of the results of a soon to be published international study by Brazilian researchers from the State University of Campinas and the Federal University of Rio de Janeiro and their American colleagues from the Eastern Illinois University, the University of Memphis and the Colorado College (Souza-Junior. 2011), this is probably the next item on list of widely accepted bodybuilding myths that have a spark of truth to them... at least for recreational strength trainees who use some creatine monohydrate to promote their strength and mass gains.
    Learn more about muscle builder & fat shredder training at the SuppVersity

    Optimizing Rest for Size and Strength Gains

    When Rodents Squat, We Can Learn A Lot!

    Farmer's Walk or Squat? Is Strong- men T. For You?

    Full ROM ➯ Full Gains - Form Counts!

    Battle the Rope to Get Ripped & Strong

    Up Your Squat by 25% With Sodium Bicarbonate
    For their study, the results of which are going to be published in the next issue of the Journal of the International Society of Sports Nutrition, Tacito P. Souza-Junior and his colleagues recruited 22 "recreationally trained" men with a minimum of one year resistance training experience at a frequency of 4 sessions a week, who were randomly assigned to one out of two exercise protocols, which differed only in the time the subjects were allowed to rest in-between sets (cf. figure 1).
    Figure 1: Identical training protocol for all subjects participating in the study (compiled based on information from Souza-Junior. 2011)
    The only difference between the groups was that half of the subjects trained with a constant rest time of 2 minutes between sets over the whole 8 weeks (CI group), while the remaining subjects had to decrease their rest times from week to week (DI group) according to the scheme illustrated in figure 2. The training sessions were supervised and the subjects were " verbally encouraged to perform all sets to voluntary exhaustion". Considering the overall workload and the training frequency, this were probably pretty hard weeks for the 22 trainees.
    Figure 2: The rest times decreased according to a standardized protocol by 15 sec each week.
    In addition all subjects, who btw. did not follow a standardized diet, consumed the proven creatine + maltodextrin mix (7 day loading phase with 20g/day creatine + 20g maltodextrin followed by a maintenance dose of 5g creatine + 5g maltodextrin taken immediately post workout) that has been used in numerous studies before.

    Figure 3: 1RM performance (in kg) for bench press and barbell squat before and after the 8-week training period in subjects with constant and decreasing rest periods (data adapted from Souza-Junior. 2011).
    Now, if the initially stated "wisdom" held true, then the 11 subjects with constant rest periods should either have gained more muscle (if you consider 2 minutes a "medium" rest period) or built more strength (if you would say that 2 minutes belong to the realm of "long" rest periods) - yet figures 3 and 4 seem to indicate that neither of that was the case.
    Figure 4: Muscle CSA (in cm²) of arm and tigh muscles before and after the 8-week training period (data adapted from Souza-Junior. 2011).
    If we have do yet a closer look at the effect sizes, there is yet a notable advantage of the DI protocol in terms of the measured increases in muscle CSA with +14% and +19% in arm and tigh CSA in the constant rest interval group (CI) and +21% and +28% in the decreasing rest interval (DI) group.
    SuppVersity Classic: Full ROM = More Growth, More Strength, More Structural Changes & More Sustainable Gains & Fat Loss - Insights from Realistic 8 Weeks Leg Training + 4 Weeks Detraining | more
    There is a spark of truth to every myth To give you an idea of how significant - and I am talking about "posing significance" not statistical significance here - this is, I have calculated the respective increases in arm- and tigh-circumference, which would differ by 0.4cm and 0.7cm, respectively. Not really outstanding, but nevertheless an important finding of which the researchers say that it lends support to the notion that
    decreasing [rest] interval[s] seems to be more efficient than constant interval to produces [sic!] hypertrophic responses.
    It has yet to be stated that the 11 subjects in the decreasing rest interval group paid dearly for this increase in muscular hypertrophy, as their "exercise performance" as measured by the total workload per session decreased profoundly from week 1 to week 8: -35% total volume for barbell squats and -30% for bench presses.

    The subjects who used constant rest periods, on the other hand, increased their total volume by +20% for squats and by +30% for bench presses. That being said, all powerlifters out there better stick to their constantly (long) rest periods if they do not want to compromise their game.

    High Reps vs. 5x5 - Revisiting the "High(er) Reps for Fat Loss"-Myth: Do You Really Believe that "Burning" +13 Extra Calories Will Make a Difference?

    Image 1: Vince Andrich, here at the 1988 Nevada State Bodybuilding Competition, knew it all along: Hard work, not high reps will get you the stage-ready physique everybody aspires... and I mean look at him are you seriously questioning Vince's expertise?
    If you have listened to the latest installments of BodyRX Radio, the idea that strength (and HIIT) training, not calorie restriction and endless cardio sessions pave the way to a leaner, more muscular physique. And although it may be of secondary importance whether you are burning 100kcal or 200kcal during those workouts, it stands out of question that you won't get rid of those damn spare tire, if you do not exert yourself in the gym (something Layne Norton is notorious for, as you may have seen in one of his workout videos or heard on BodyRX, lately) - because, after all, energy expenditure does count, even if the energy equation is much more complex than the simplistic calories in vs. calories out paradigm that is still upheld by mainstream dietitians. The results of a recent study from scientists from the Departments of Health and Sport Sciences at the Salisbury University and the University of South Carolina are may thus come handy to decide, to which extent workout intensity and volume influence acute and post-exercise energy expenditure (Mazetti. 2011). Or, to make it simple, does the good old bro-scientific high volume, high rep, low-weight training during a contest prep make any sense at all?

    Exposed! The absurdity of going to the gym to "burn calories"

    Scott A. Mazetti and his colleagues recruited 10 resistance trained young men (22+/-3.6 years) with an average body mass of 84+/-6.4kg, a height of 180+/-5.1cm, and a body fat percentage of 13+/-3.8% - an adequate model of the "average gymrat", if you asked me. After a 3-week familiarization and testing period, all participants performed every of the following four different explosive strength training regimen in a randomly assigned, but counterbalanced order (cf. figure 1)
    Figure 1: The four training protocols all trainees performed after an initial 3-week familiarization and testing period in a randomly assigned, but counterbalanced order (Mazetti. 2011)
    Now, you may complain that there is neither a "high rep" nor a "heavy group" in the conventional sense of 15+ pump training with an endless amount of sets, or the minimalist 1-2 rep approach of the hardcore HIT faction... granted, you are right. Nevertheless, we should see a significant difference in energy expenditure between a 5x5 and a 4x10 (both normally considered as "hypertrophy training) regimen, already, if the good old saying "high(er) reps" for increased energy expenditure and subsequent fat loss had any merit.
    Figure 2: Energy expenditure (kcal/min) during and after squatting, and bench pressing in the four training groups and total energy expenditure during the whole workout and 60min post-workout window (data adapted from Mazetti. 2011)
    As figure 2 goes to show, there are differences in energy expenditure between the different protocols, during the squat, the deadlift and up to 5 minutes post exercise, nevertheless, the "the differences in total energy expenditure among protocols were not significant". So, even if there were any merit in exercising primarily to burn calories during your workout (a ridiculous way of trying to lose weight, which is predestined to fail, anyway), the -6kcal difference between the -13kcal difference between the least energy consuming form of training, i.e. 5x5 and the one with the highest energy demand, i.e. 4x10, would not even suffice to "make up" (another hilarious idea) for proverbial "apple à day", which keeps the doctor away.
    Image 2: Don't let your lazy love handles decide what type of "cardio" you are doing!
    A brief note on what Lane already pointed out in the last installment of Body RX Radio: Classic low-intensity cardio training may "burn" calories for a week or two. Afterwards, this type of chronic low-grade stressor is yet notorious for shutting down your metabolism and reducing your resting energy expenditure. Of high intensity aerobic exercise with intensities way beyond the 70% VO2max limit (YES! This is aerobic, two - cf. "HIIT is the Hit! Even for Patients with Myocardial Infarctions!"), we have known for decades that it increases your resting energy expenditure by "5 ±15% for 24 ± 48 h" (Hunter. 1998). So, I suggest you get off the stationary bike you are just riding while browsing the web, get your running shoes out and do a couple of sprints. Your spare tire won't like that, but I bet you will like the effect it's going to have on the person you see in the mirror, each morning ;-)
    In view of these results, it appears prudent to reassess the often-heard advice of doing high reps for fat loss. Even if you insist that you need to "burn calories" in the gym, it is very unlikely that those few extra calories would make a noticeable difference in terms of how you look on stage - or just in front of your private mirror. Moreover, even this small advantage vanishes as soon, as you increase the workload by doing 2x7 + 2x6 with a heavy weight, or put simply: Identical workload identical calorie expenditure.

    Bicarbonate For Strength Athletes: 25g of Baking Soda Up Your Squat (+27%) & Bench Press (+6%) Within 60 Min

    NaHCO3 probably won't make the burn go away, but it will help you push though it.... and no(!), you don't have to be afraid to retain water - sodium bicarbonate is actually going to lower aldosterone and is thus - if anything - going to have a diuretic effect (Musabayane. 1991). Calcium loss etc. is nothing you have to be afraid of either (Luft. 1990).
    After yesterday's astonishingly popular excursion into dating sciences, we are back to "normal" or as others would call it "extraordinary", here at the SuppVersity today ;-) And to make really sure you know that you're right here we're going to get back into the ergogenic groove with one of my personal favorites: Sodium bicarbonate, NaHCO3 or as your granny calls it, baking soda!

    In the unfortunate case you have no idea, what I am taking about, I'd suggest you briefly go through the previous SuppVersity articles and Facebook posts (e.g. +13% increase the sprinting capacity; sorry for the → typo) about the ergogenic effects of baking soda . Once you've done that it should not really come as a surprise that scientists from the real Human Performance Laboratory  at the Coventry University in the UK found that NaHCO3 will not just for cyclists, runners and rowers, but also for "bench pressers" and "squatters" ;-)

    One thing after the other, though!

    If you know your SuppVersity articles by heart, you are probably thinking about the Kerr study from September 2012, now - right? For the average gymrat, this was probably the most exciting paper on the ergogenic effects of sodium bicarbonate supplementation I've written about (see "22g Baking Soda 60min Before a Old-School 4 x 12RM Leg Workout Allow for a 22 Rep Volume Increase on Hypertrophy Oriented Squat + Leg Press + Leg Extension Quads Routine" | read more).
    A note for those with gastrointestinal problems or an insurmountable gag reflex: I know that downing 25g sodium bicarbonate at once can be disgusting and sends people with weaker stomachs right to the toilette. Fortunately, a 2012 study by Dreher et al. suggests that "serial loading" with several smaller servings of baking soda works at least as well | learn more
    And while the Kerr study was among the first to demonstrate significant beneficial effects of sodium bicarbonate in a strength training scenario, it is - if you come to think of it, actually not that surprising to see that the H+ (=hydrogen ions → acidity) buffering effect works just as well during a high volume leg workout, as it does, during high intensity cycling and sprinting [just a note on the H+ buffer: contrary to beta alanine, bicarbonate buffers the acidity in the blood, not within the muscle cell and will thus have greater effects on the periphery than carnosine the histidine + beta alanine dipeptide you are actually looking for, whenever you take your beta alanine supplement.

    Now while it may not have been surprising that high volume + baking soda does make a perfect match, it is, as you will hopefully agree, not exactly straight forward that we would see similar benefits on the low volume performance test, the 8  men (mean age, height and body mass → 20  ±0.9 years, 1.8  ± 0.1m and 78.4  ± 15.6kg, respectively)  who had been recruited for the study at hand had to perform.

    Three sets of squats and bench presses? Isn't that too little volume for NaCO3 to work?

    All the participants who had at least one year of strength training experience competed  in  team  games  (rugby  union,  soccer, basketball) at the national level and were concomitantly training more than 10 hours per week as part of their regular preseason preparations (those included 3h of resistance training). During the testing conditions to which the subjects had been randomly assigned, all of the performed
    Learn about the best chest exercises in the SuppVersity EMG Series.
    • three sets of bench presses to failure at 80% 1RM, and 
    • three sets of back squats "to failure" at 80% 1RM
    With three minutes of rest between the sets and five minutes of rest between exercises, this is, as I already mentioned, not exactly the workout you would usually expect to benefit (most) from bicarbonate supplementation. Still, the data in Figure 1 tells another story:
    • 0.3g/kg NaHCO3 in 5 ml/kg of artificially sweetened water (NaHCO3), instead of
    • 0.045g/kg NaCL in an artificially sweetened water drink matched for taste
    60 minutes before the two blinded performance tests did the trick - it did increase the mean total reps for squats (+6.7 reps; +27%) and bench preses (+1.5 reps; +6% -- note: I used the values from the table in the full text. They differ from those in the abstract according to which the performance increase would be 7%)
    Figure 1: Back squat and bench press performance in three subsequent sets (Duncan. 2013)
    As it was to be expected due to the low volume and long rest between sets, there was no significant change in blood lactate across time or between conditions. There were however treatment × time interactions for blood pH (p = 0.014) and blood HCO3 concentration (p = 0.001), with the increasing pH and bicarbonate (HCO3) levels in the blood of the NaHCO group being the obvious cause of the highly significant performance benefits.
    Does beta alanine hamper instead of improve your sprinting performance? Learn more in a previous SV Article.
    Baking soda for strength athletes: After the previously cited study by Kerr et al. this is study #2 to prove that the usefulness of baking soda, sodium bicarbonate or NaHCO3 (call it whatever you want) is by no mean, as it was long thought to be, restricted to endurance sports with intermittent sprints. With the study at hand there is enough evidence to believe that it's acute effects are going to be present whenever you're pushing yourself to your own limits and in view of the fact that pushing to the limits, in order to raise the bar is what's driving progress.

    I would therefore be curious to see a long(er) term study (8-12 weeks) taking a look at the cumulative benefits of sodium bicarbonate supplementation on strength and mass gains in trained and untrained individuals. Unfortunately, I suppose that no one with the money to finance that study will share my interest. In the end, a study like this would after all entail the risk of exposing how pathetic the 2.85% performance increase we see in the average beta alanine study actually are (Hobson. 2012).
      Reference: 
      • Duncan MJ, Weldon A, Price MJ. The effect of sodium bicarbonate ingestion on back squat and bench press exercise to failure. J Strength Cond Res. 2013 Oct 11. [Epub ahead of print]
      • Hobson RM, Saunders B, Ball G, Harris RC, Sale C. Effects of β-alanine supplementation on exercise performance: a meta-analysis. Amino Acids. 2012 Jul;43(1):25-37. 
      • Luft FC, Zemel MB, Sowers JA, Fineberg NS, Weinberger MH. Sodium bicarbonate and sodium chloride: effects on blood pressure and electrolyte homeostasis in normal and hypertensive man. J Hypertens. 1990 Jul;8(7):663-70.
      • Musabayane CT, Balment RJ. Renal effects of aldosterone in the sodium bicarbonate infused rat. Ren Fail. 1991;13(2-3):71-6.

      The Fallacy of Working Out To "Burn Calories" + Exercise Shuts Down the Carb Cravings: Bench Press, Leg Press HIIT & LISS Are Not Meant to Incinerate the Junk You Eat

      If you work out to be able to allow yourself to eat, you know you have a serious problem.
      So, what was that about the bench pressing consuming as much energy as leg presses and the "exercise just makes you hungry myth" on the last installment of the Science Round-Up? If that's what you have been asking yourself this morning, when you showered I am impressed - or should I be worried?
      If you have not done so already, this would be the right time to download + listen to the Science Round-Up - I promise there is much to learn and not all of it is going to be repeated here.
      Whatever... in the end it does not matter how urgent you were waiting to take a look at the data that supports my argument that (a) exercise does not just make you hungry, and that (b) the notion to work out primarily to burn energy is hilarious.

      Chest vs. legs what's energetically more costly?

      While I could imagine that the comparison would have yielded a different result if the 10 healthy young men (>1 year of resistance training experience; BMI ~24kg/m²) had performed squats instead of regular leg presses, I have to admit that I was still surprised to see that Magossoa et al. actually found no difference in the total energy expenditure between 3 sets of 10 reps (70% 1RM) of bench vs. leg presses (Note: The researchers determined the total energy expenditure using the oxygen uptake (aerobic component) the EPOC and lactate production (anaerobic component)).
      Table 1: Workload, energy expenditure total, per minute per weight lifted (Magosso. 2013)
      If you look at the data in Table 1, you will have to concede: The only difference between the energy expenditure during the leg and the leg press was the inferior energy consumption per kg of weight on 'the bench'.

      If you were one of the lazy (and mostly ignorant) buggers who "already have big enough legs", you could probably use these results to argue that leg presses and the rest of the leg workout was a pretty unnecessary undertaking - I mean, if you don't want bigger legs it should at least help you with that sixpack by burning a couple of calories, right?

      Only a fool will work out to "burn energy"

      Suggested Read: "Busting the 3,500kcal = 1lbs Weight Loss Myth! Debunking the rule of thumb with the power of science" | read more
      Once they're there, it does usually you not take very long until people will remember this ingeniously simply (and about s flawed) rule of thumb that says: To lose 1lbs of fat you got to burn 3,5000kcal. Here, in our concrete example, that would mean that it would not matter if you did another 228 sets of bench presses or leg presses to lose 1lbs of pure body fat.

      Once you've gotten caught in calculations such as the above, i.e. 229 sets x 46kcal / 3 sets  > 3500kcal, or in words "I got to do 228 sets of bench presses to burn one pound of body fat!", you are lost.

      Firstly, the equation 3,500kcal caloric deficit = 1lbs fat loss if flawed (learn more).

      Secondly, and even more importantly, doing more, which is what all the "I workout to lose fat" weekend warriors do, is not going to yield superior results. If you don't believe that, I suggest you go back to my "How to Burn 27,300 Kcal Extra W/out Losing a Single Extra Pound of Fat!"-article and take a look at the results of the Rosenkild study from 2012 (figure 3).

      Gary is ... no, not a fool, but he is still wrong

      Now, I obviously cannot forbid workout extra and luckily even Gary Taubes can't because even if you insisted to burn 600kcal, instead of just 300kcal, you can at least console yourself that this is not going to increase your appetite (learn more). Especially if we are talking about relatively intense exercise for similarly "relatively obese" individuals, working out will not only reduce your window of opportunity to eat (for some people even that may make a difference, believe me), but rather work like a gastric bypass - one that won't allow you to hit your obesogenic macros on the subsequent meals.
      Figure 1: Macronutrient intake (lunch + dinner in g) on control vs. exercise day (David. 2013)
      Those of you who have not listened to the podcast yet will now probably be wondering what I am talking about, right? Well, take a look at the 3D bars in Figure 1. They represent the results of a study David et al. conducted earlier this year. A study that involved both lean and obese kids and a study that demonstrates that a relatively short (3x10 min) but comparably hard workout (75% VO2max) is not going to make the sugar junkies crave for more - quite the opposite, it will reduce their apperite for carb(age) to a normal level [similar appetite-reducing effect were observed by Sim et al. (2013) in adult men and Rosenkilde (2013; already discussed at the SuppVersity].

      I mean, a voluntary 35% reduction in carbohydrate intake during lunch and dinner and a total reduction in energy intake of 475kcal are impressive ballpark figures considering the fact that exercise is often said to "just make you hungry" - wouldn't you agree?

      EPOC should not determine your choice of exercise either

      If you are sprinting because of the increase in EPOC, you are a fool.
      From the article I referenced in yesterday's write-up ("More Than 3x Higher EPOC Induced Energy Expenditure With HIIT vs. LISS! But Does That Really Matter?" | read more) you already know that  HIITing it hard on Wingate tests will yield a pretty pathetic increase in EPOC of ~20kcal over a casual 30min jog.

      So even if it was about burning calories the jog would be far superior because the increase in Excess Post-Exercise Oxygen Consumption (EPOC) is not going to compensate the additional kcal the subjects in the Townsend study burned during the steady state exercise.

      The latter is by the way not much different if you compare two different HIIT regimen - a very intense short one (HIIT1) and a somewhat longer slightly less intense alternative regimen (HIIT2):
      • HIIT1: 10 x 1min, 1min pause between intervals; cycling at 80-90RPM at 90% of the HRmax
      • HIIT2: 10 x 4min, 2min pause; cycling at 60-80RPM and without a prescribed minimal heart rate
      In their trial that involved 9 lean, healthy male subjects, Kelly et al. obeserved that the HIIT2 trial was more than two times more energetically costly (675kcal vs. 275kcal) - the EPOC effect on the other hand did not lead to any significant differences in post-exercise energy expenditure, so that the HIIT1 group was stuck with their ~400kcal inferior energy expenditure... now, that sounds as if it was a bad thing, but if we consider that they spent less time on the ergometer and were rewarded with a greater stimulus for mitochondrial expansion and even muscle growth (see "The Anablic Effects of HIIT" | read more), I would not say that they came off second best - would you?
      Practical suggestions for your workout week...
      • health focus - 2-3x resistance training + daily LISS as in walking (min. 30-60min)
      • performance focus - 3x resistance training + 1-2x HIIT + 6x LISS as in walking (30-40min)
      • physique focus - 3-4x resistance training + 1x HIIT +  6x LISS as in walking (30-40min)
      Don't forget that the reason you do the LISS training is not because you want to burn calories, but rather because you want to spend some time doing what you actually would have to do everyday: Walking from place A to B; and if you belong to the few of us who don't sit on a desk all day, you may skip the walk in the park.
      So what's a good reason to work out, then? Health! I know that does not sound as sexy as six-pack abs and bigger sleeves, but there is not denying it: Exercise is your vaccine and magic pill. It's what's going to make you feel good, look good and age well and unless you want to end up debilitated in a nursing home it is not optional even if you follow an energy restricted diet for the rest of your life. What is optional, though, is exercise as a means to increase athletic performance or influence the shape of you body withing your individual very specific limits.

      Within this health ↔ performance ↔ looks triangle you will often encounter conflicts, where the optimization of one compromises the realization of another. I am nevertheless convinced that classic light intensity steady state (to make up for our modern sedentary lifestyle), en vogue high intensity interval training (to increase your VO2max) and classic and modern forms of resistance training (to build and maintain muscle mass) all have their place in a routine that does not lose sight of any of the vertices of the triangle.

      What? How you can ever lose weight without doing endless hours of cardio? Well what about dieting?
      References:
      • David T, et al. Obese but not lean adolescents spontaneously decrease energy intake after intensive exercise. Physiol Behav. 2013 [epub ahead of print]
      • Kelly B, King JA, Goerlach J, Nimmo MA. The impact of high-intensity intermittent exercise on resting metabolic rate in healthy males. Eur J Appl Physiol. 2013 Oct 6. [Epub ahead of print]
      • Magosso et al. Energy Expenditure during Multiple Sets of Leg Press and Bench Press. Journal of Exercise Physiology online. October 2013.
      • Rosenkilde M, Auerbach P, Reichkendler MH, Ploug T, Stallknecht BM, Sjödin A. Body fat loss and compensatory mechanisms in response to different doses of aerobic exercise--a randomized controlled trial in overweight sedentary males. Am J Physiol Regul Integr Comp Physiol. 2012 Sep 15;303(6):R571-9.
      • Rosenkilde M, Reichkendler MH, Auerbach P, Toräng S, Gram AS, Ploug T, Holst JJ, Sjödin A, Stallknecht BM. Appetite regulation in overweight, sedentary men after different amounts of endurance exercise - a randomized controlled trial. J Appl Physiol (1985). 2013 Sep 19. [Epub ahead of print]
      • Sim AY, Wallman KE, Fairchild TJ, Guelfi KJ. High-intensity intermittent exercise attenuates ad-libitum energy intake. Int J Obes (Lond). 2013 Jun 4. doi: 10.1038/ijo.2013.102. [Epub ahead of print]