Effect of individualized resistance training prescription with heart rate variability on individual muscle hypertrophy and strength responses

作者：Ramon Martins de Oliveira, Carlos Ugrinowitsch, James Derek Kingsley, Deivid Gomes da Silva, Diego Bittencourt, F. Caruso, Audrey Borghi‐Silva, Cleiton Augusto Libardi · 发表于：European Journal of Sport Science · 年份：2019 · DOI：10.1080/17461391.2019.1572227 · 被引用次数：15 · 研究领域：Sports Performance and Training、Cardiovascular and exercise physiology、Heart Rate Variability and Autonomic Control

Abstract The aim of the present study was to investigate if resistance training (RT), performed with individualized recovery between sessions (RT‐IND), promotes greater gains in strength and muscle mass and reduces the variability on adaptations compared to RT with fixed recovery intervals (RT‐FIX). Twenty young men (age 21.9 ± 3.3 years) were randomized in the RT‐IND and RT‐FIX groups. Five days before the beginning of the training, measurements of the root mean square of successive R‐R intervals differences (RMSSD) values of each individual were performed to establish the baseline values. Before each RT session, the RMSSD values determined whether the participants from RT‐IND protocol were recovered from the previous session. Participants performed the RT session only if RMSSD values had returned to the baseline, otherwise they had to wait for an additional 24 h. RT‐FIX performed an RT session every 48 h. Muscle strength was measured by one‐maximal repetition (1‐RM) test and muscle cross‐section area (CSA) of the vastus laterals by ultrasonography were assessed pre‐ and post‐training. 1‐RM values increased significantly from pre to post‐training for both groups (RT‐IND: 30% and RT‐FIX: 42%, main time effect, P < 0001), with no significant difference between groups. Muscle CSA increased significantly from pre to post‐training (RT‐IND: 15.7% and RT‐FIX: 15.8%, main time effect, P < 0001), with no significant difference between groups. In conclusion, RT‐IND did not increase th...