The Acute Effects Different Quantities of Branched-Chain Amino Acids Have On Recovery of Muscle Function

Abstract

The purpose of the study was to investigate the acute effects of two different quantities of branched-chain amino acids (BCAA) on the recovery of muscle function following high-intensity resistance training in trained individuals. Five resistance-trained males were recruited and performed baseline assessments of, countermovement (CMJ) and squat jump (SJ), peak (PP) and mean (MP) power (6s Cycle Sprint) and perceived muscle soreness (RMS). In a counterbalanced, single-blind fashion, participants were provided with either, placebo or 6 g or 18 g BCAA 20 min prior to, and immediately after completion of a high-intensity strength session (ST). At 24 h post ST, all assessments were completed under all three experimental conditions. Following ST, there were significant decrements in all measures of muscle function across conditions when compared to baseline values (P<0.05). However, ingestion of 6 g and 18 g BCAA was shown to significantly attenuate these decrements in comparison to placebo (P<0.05). A dose-response for BCAA was also present as significant differences (P<0.05) were shown between ingestion of 6 g and 18 g; CMJ (18 g: 59

Effectiveness of Whey Protein Hydrolysate and Milk-Based Formulated Drinks on Recovery of Strength and Power Following Acute Resistance Exercise

“…The resistance exercise session consisted of a series of multi-joint exercises (Table 2), with a design similar to that used within previous research (Dorrell and Gee, 2016). Each exercise was performed for 4 sets of 8 repetitions at 75% of one-repetition maximum (1-RM), with 2-min rest intervals allocated between each set.…”

Does Branched-Chain Amino Acids (BCAAs) Supplementation Attenuate Muscle Damage Markers and Soreness after Resistance Exercise in Trained Males? A Meta-Analysis of Randomized Controlled Trials

“…The details of study characteristics are summarized in Table 2. The included studies ranged from 2011 to 2018 [33][34][35][36][37][38][39][40][41]. The study design was randomized controlled trial, of which parallel design for 7 studies [33][34][35][36][39][40][41] and crossover design for 2 studies [37,38].…”

“…The included studies ranged from 2011 to 2018 [33][34][35][36][37][38][39][40][41]. The study design was randomized controlled trial, of which parallel design for 7 studies [33][34][35][36][39][40][41] and crossover design for 2 studies [37,38]. Participants from the nine studies were either single [33,[36][37][38] or double blinded [34,35,[39][40][41].…”

“…The study design was randomized controlled trial, of which parallel design for 7 studies [33][34][35][36][39][40][41] and crossover design for 2 studies [37,38]. Participants from the nine studies were either single [33,[36][37][38] or double blinded [34,35,[39][40][41]. The details of study characteristics are summarized in Table 2.…”

“…The total number of participants from all included studies was 278 with age ranging from 21.5 to 24.7 years and mean body mass ranging from 61.7 to 86.4 kg. Participants were declared to be resistance-trained males [37][38][39]41] and specific-sports athletes of soccer and rugby [34,35], wrestling [33,36], and road cycling [40].…”