首页> 美国卫生研究院文献>Sports >A New Approach to EMG Analysis of Closed-Circuit Movements Such as the Flat Bench Press
【2h】

A New Approach to EMG Analysis of Closed-Circuit Movements Such as the Flat Bench Press

机译:EMG分析闭路运动的一种新方法例如平板卧推

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Background: The bench press (BP) is a complex exercise demanding high neuromuscular activity. Therefore, the main objective of this study was to identify the patterns of muscular activity of the prime movers on both sides of an elite powerlifter. Methods: A World Champion (RAW PR 320 kg) participated in the study (age: 34 years; body mass: 103 kg; body height 1.72 m; one-repetition maximum (1 RM) flat bench press: 220 kg). The subject performed one repetition of the flat bench press with: 70% 1 RM (150 kg) and 90% 1 RM (200 kg) in tempos: 2 s eccentric and 1 s concentric phase; 6 s eccentric and 1 s concentric phase). The activity was recorded for: pectoralis major, anterior deltoid, and triceps brachii (lateral and long head). Results: The total sum of peak muscle activity for the four analyzed muscles during both phases of the BP with the different loads and tempos was significantly different, and greater on the right side of the body. Conclusions: The use of lighter loads activate muscle groups in a different activation level, allowing for a greater muscle control. Lifting submaximal and maximal loads causes an activation of most motor units involved in the movement. Experienced athletes have a stabilized neuromuscular pattern for lifting which has different bilateral activity contribution.
机译:背景:卧推(BP)是一项复杂的运动,需要高度的神经肌肉活动。因此,这项研究的主要目的是确定精英举重运动员两侧原动机的肌肉活动模式。方法:一位世界冠军(RAW PR 320公斤)参加了研究(年龄:34岁;体重:103公斤;身高1.72 m;最多一次(1 RM)平卧推:220公斤)。受试者进行了一次平板卧推,重复次数为:70%1 RM(150 kg)和90%1 RM(200 kg),速度:2 s偏心和1 s同心相; 6 s偏心和1 s同心相位)。记录了以下活动的信息:胸大肌,前三角肌和肱三头肌(外侧和长头)。结果:在不同负荷和节奏的BP的两个阶段中,四个分析肌肉的峰值肌肉活动的总和显着不同,并且在身体右侧更大。结论:使用较轻的负荷可以以不同的激活水平激活肌肉群,从而更好地控制肌肉。提升次最大负荷和最大负荷会激活运动中涉及的大多数电机单元。经验丰富的运动员具有稳定的举重神经肌肉模式,具有不同的双边活动贡献。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号