Thursday, July 10, 2014

2013 in Strength Science: Nutrition, Supplements, and Drugs (GH, caffeine, and NSAIDS)

Continuing my summary of Jonathan Sullivan's "The Year in Strength Science, 2013" with Part VII on Nutrition, Supplements, and Drugs.  (full text

(1) Tavares et al [86] looked at the effect of growth hormone (GH) administration on muscle strength in men over 50 years old. . . . The investigators found no significant effect on bench press strength after 6 months of therapy, and a clinically insignificant effect on leg press strength."   BUT, the problem, as Sully explains is this:  "There was no training program here. No progressive overload, no documentation of exercises, no supervised resistance training at all. It’s just flabbergasting – these authors actually expected a bunch of geezers to get stronger just because they got growth hormone, without any sort of programmed training intervention." (p. 31)

(2)  "Hurley et al [90] investigated the effect of caffeine on delayed onset muscle soreness (DOMS), using a crossover study design with an indeterminable number of “low-caffeine-consuming” bros doing preacher curls with and without caffeine on separate occasions. They report that bros had less DOMS, particularly on post-workout day 3, when they consumed caffeine."  Sounds great, but unfortunately, Sully argues, the whole design of the study was flawed (weak controls) and their data presentation was "inappropriate."  (p. 32)

(3) In the past, Sully has "inveighed at length against the longstanding, non-evidence-based mythology that the use of anti-inflammatory therapies, particularly NSAIDs and cooling, would inhibit our adaptation to resistance exercise and stunt our gains."  So he reports gleefully about the latest in-depth review of the literature on this topic by Trappe and co-author Sophia Liue.  "The review is worth the read just for this stuff, but their conclusion, based on the data we have, is the money shot:

(p. 33)

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