Effects of Training Volume in the Bench-Press Exercise Performed With Interrepetition Rest Periods on Strength Gains and Neuromuscular Adaptations.

IF 3.5 2区 医学 Q1 PHYSIOLOGY International journal of sports physiology and performance Pub Date : 2024-10-30 DOI:10.1123/ijspp.2024-0228
José A Páez-Maldonado, Claro Cano, Pedro J Cornejo-Daza, Juan Sánchez-Valdepeñas, Luis Rodiles-Guerrero, Mathias Wernbom, Manuel Ortega-Becerra, Fernando Pareja-Blanco
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Abstract

Purpose: To investigate the effects of 3 training volumes in the bench-press exercise performed with interrepetition rest periods, matched for fatigue, on strength gains and neuromuscular adaptations.

Methods: Forty-three resistance-trained men were randomized into 3 groups: low (LOW), moderate (MOD), and high (HIG) volume. The intensities increased from 70% to 85% of 1-repetition maximum (1RM) over the 8-week training period. Each session consisted of only 1 set with short interrepetition rest periods. LOW performed only 3 repetitions per session (8-wk total: 48 repetitions); MOD completed 15, 12, 10, and 8 repetitions per session with 70%, 75%, 80%, and 85% 1RM, respectively (8-wk total: 180); and HIG performed 24, 21, 18, and 15 repetitions per session with 70%, 75%, 80%, and 85% 1RM, respectively (8-wk total: 312). Progressive loading and fatigue tests were conducted in the bench-press exercise before and after the training period. Electromyography (EMG) signals from the triceps brachii were registered during these tests.

Results: HIG and MOD showed higher velocity loss than LOW (16% vs 12%). No significant group × time interaction was observed for any variable. All groups improved significantly in all strength-related variables, except for maximal unloaded velocity, where only MOD obtained significant gains. Only LOW and MOD induced significant improvements in EMG. MOD obtained the greatest effect sizes in almost all strength variables.

Conclusions: No significant differences were found in the performance gains obtained by each group despite the wide differences in the total volume accumulated by each group.

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间歇期卧推训练量对力量增长和神经肌肉适应性的影响
目的:研究卧推练习中的三种训练量与重复间歇期(疲劳匹配)对力量增长和神经肌肉适应性的影响:43名接受过阻力训练的男性被随机分为3组:低强度组(LOW)、中等强度组(MOD)和高强度组(HIG)。在为期 8 周的训练中,训练强度从单次最大重量(1RM)的 70% 增加到 85%。每次训练只做一组动作,中间休息时间较短。LOW 每节课只重复 3 次(8 周合计:48 次);MOD 每节课分别重复 15、12、10 和 8 次,1RM 分别为 70%、75%、80% 和 85%(8 周合计:180 次);HIG 每节课分别重复 24、21、18 和 15 次,1RM 分别为 70%、75%、80% 和 85%(8 周合计:312 次)。在训练前后,对卧推练习进行了渐进加载和疲劳测试。在这些测试中记录了肱三头肌的肌电图(EMG)信号:结果:HIG 和 MOD 的速度损失高于 LOW(16% 对 12%)。在所有变量中,均未观察到明显的组别 × 时间交互作用。所有组别在所有力量相关变量上都有明显改善,但最大无负荷速度除外,只有 MOD 组获得了明显改善。只有 LOW 组和 MOD 组的肌电图有明显改善。在几乎所有力量变量中,MOD 的效果最大:结论:尽管各组积累的总运动量差异很大,但各组在成绩提高方面没有发现明显差异。
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来源期刊
CiteScore
5.80
自引率
12.10%
发文量
199
审稿时长
6-12 weeks
期刊介绍: The International Journal of Sports Physiology and Performance (IJSPP) focuses on sport physiology and performance and is dedicated to advancing the knowledge of sport and exercise physiologists, sport-performance researchers, and other sport scientists. The journal publishes authoritative peer-reviewed research in sport physiology and related disciplines, with an emphasis on work having direct practical applications in enhancing sport performance in sport physiology and related disciplines. IJSPP publishes 10 issues per year: January, February, March, April, May, July, August, September, October, and November.
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