Correction: Pre- versus post-exercise protein intake has similar effects on muscular adaptations.

[This corrects the article DOI: 10.7717/peerj.2825.

Pre- versus post-exercise protein intake has similar effects on muscular adaptations.

The purpose of this study was to test the anabolic window theory by investigating muscle strength, hypertrophy, and body composition changes in response to an equal dose of protein consumed either immediately pre- versus post-resistance training (RT) in trained men. Subjects were 21 resistance-trained men (>1 year RT experience) recruited from a university population. After baseline testing, participants were randomly assigned to 1 of 2 experimental groups: a group that consumed a supplement containing 25 g protein and 1 g carbohydrate immediately prior to exercise (PRE-SUPP) ( = 9) or a group that consumed the same supplement immediately post-exercise (POST-SUPP) ( = 12).

Acute effects of a commercially-available pre-workout supplement on markers of training: a double-blind study.

Background: Pre-workout supplements containing numerous ingredients claim to increase performance and strength. Product-specific research is important for identifying efficacy of combined ingredients. The purpose of this study was to evaluate the effects of a proprietary pre-workout dietary supplement containing creatine monohydrate, beta-alanine, L-Tarurine, L-Leucine, and caffeine, on anaerobic power, muscular strength, body composition, and mood states.

Effects of a pre-and post-workout protein-carbohydrate supplement in trained crossfit individuals.

Purpose: The purpose was to assess effects of a pre- and a post-workout protein-carbohydrate supplement on CrossFit-specific performance and body composition.

Methods: In an open label randomized study, 13 male and 16 female trained Crossfit participants (mean ± SD; age: 31.87 ± 7.