Results
MP, FM
Out of 84 participants screened for eligibility, 31 were excluded (22 did not meet inclusion criteria, 19 declined to participate). Fifty-five were randomized and allocated to 2.5 g/d BET and 5.0 g/d BET. Forty-three participants attended all four study meetings and were analyzed. Eleven participants dropped out of the study for the following reasons: injury (Baseline characteristics of participants.Participant dietary macronutrient for all study meetings.BETThere were no significant time × treatment interactions for body mass (BM), FM, FFM, or TBW (Effects of betaine supplementation on body mass and composition.All There were no significant time × treatment interactions for PP, AP, or MP (Effects of betaine supplementation on WAnT. a. Effects of betaine on WAnT power, second by second. b. Effects of placebo on WAnT power second by second. c. Effects of betaine on WAnT power in 5-s intervals. d. Effects of betaine on WAnT power in 10-s intervals. BET post, after betaine; BET pre:,before betaine, PL post, after placebo; PL pre, before placebo.Effects of betaine supplementation on WAnT power.All The interaction with BET supplementation significantly increased the number of repetitions independently of the dose (BETEffects of betaine supplementation on each Fight Gone Bad exercise.BETpost, after betaine; BETpre, before betaine; MTHFR, methyltetrahydrofolate reductase; PLpre, before placebo; PLpost, after placebo; SD, standard deviation.The total number of repetitions in all five exercises was significantly increased after BET treatment as compared to before BET in each round: the increase in Round 1 was: +5.1 ± 7.6 reps, +5.7 ± 8.0% (Effects of betaine supplementation on FGB performance. A. Effects of betaine on each round of FGB. B. Effects of betaine on FGB total. BET post, after betaine; BET pre, before betaine; FGB, Fight Gone Bad; PL post, after placebo; PL pre, before placebo.Testosterone concentration increased significantly after BET supplementation (+0.29 ± 0.67 ng/mL, +7.0 ± 15.4%) with no difference after PL (- 0.02 + 0.69 ng/mL, −1.6 + 19. %, Effects of betaine supplementation on testosterone, insulin-like growth factor 1, and cortisol concentrations.All 