Shoulder muscle activation during stable and suspended push-ups at different heights in healthy subjects
Shoulder muscle activation during stable and suspended push-ups at different heights in healthy subjects
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DOI：
10.1016/j.ptsp.2014.12.004
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发表时间：
2015-08-01
影响因子：
2.4
通讯作者：
Rogers, Michael E.
中科院分区：
文献类型：
--
作者：
Borreani, Sebastien;Calatayud, Joaquin;Rogers, Michael E.
目的：分析在不同稳定性条件和高度下进行俯卧撑时肩部肌肉的激活情况。研究设计：重复测量对比研究。地点：巴伦西亚大学实验室。参与者：29名健康男性。主要观察指标：受试者在稳定条件下使用悬吊装置，分别以两种不同的高度(10 cm和65 cm)分别做3个俯卧撑。控制俯卧撑速度，随机化测试顺序。记录肱三头肌长头肌(三头肌)、上斜方肌(TRAP)、三角肌前肌(DELT)和锁骨胸肌(PEC)肌电均方根的平均波幅。结果：悬吊俯卧撑10 cm处的三头肌(17.14+/-1.31%MVIC比37.03+/-1.80%MVIC)和陷阱(5.83+/-0.58%MVIC比14.69+/-1.91%MVIC)激活更多。对于DELT和PEC，分别在地板上执行俯卧撑时，发现有类似或更高的激活。身高决定了不同的肌肉激活模式。结论：稳定的俯卧撑引起相似的PEC和更高的DELT肌肉激活，在10 cm时更大；而暂停俯卧撑引起更大的陷阱和三头肌肌肉激活，在65 cm时更大。(C)2014爱思唯尔有限公司。保留所有权利。
Objectives: To analyze shoulder muscle activation when performing push-ups under different stability conditions and heights.Study design: Comparative study by repeated measures.Setting: Valencia University laboratory.Participants: 29 healthy males participated.Main outcome measures: Subjects performed 3 push-ups each with their hands at 2 different heights (10 vs. 65 cm) under stable conditions and using a suspension device. Push-up speed was controlled and the testing order was randomized. The average amplitudes of the electromyographic root mean square of the long head of the triceps brachii (TRICEP), upper trapezius (TRAPS), anterior deltoid (DELT) and clavicular pectoralis (PEC) were recorded. The electromyographic signals were normalized to the maximum voluntary isometric contraction (MVIC).Results: Suspended push-ups at 10 cm resulted in greater activation in the TRICEP (17.14 +/- 1.31 %MVIC vs. 37.03 +/- 1.80 %MVIC) and TRAPS (5.83 +/- 0.58 %MVIC vs. 14.69 +/- 1.91 %MVIC) than those performed on the floor. For DELT and PEC similar or higher activation was found performing the push-ups on the floor, respectively. Height determines different muscle activation patterns.Conclusions: Stable push-ups elicit similar PEC and higher DELT muscle activation, being greater at 10 cm; whereas suspended push-ups elicit greater TRAPS and TRICEP muscle activation, being greater at 65 cm. (C) 2014 Elsevier Ltd. All rights reserved.