Shoulder Muscle Activation Levels During the Push-Up-Plus Exercise on Stable and Unstable Surfaces.
Shoulder Muscle Activation Levels During the Push-Up-Plus Exercise on Stable and Unstable Surfaces.
复制标题
在稳定和不稳定表面上进行俯卧撑加练习时肩部肌肉的激活水平。
DOI：
10.1123/jsr.2016-0050
复制
发表时间：
2017
影响因子：
1.7
通讯作者：
R. C. de Araújo
中科院分区：
文献类型：
--
作者：
R. J. B. Torres;A. L. Pirauá;V. Y. S. Nascimento;Priscila S Dos Santos;N. B. Beltrão;V. M. A. de Oliveira;A. Pitangui;R. C. de Araújo
本研究的目的是评估使用稳定和不稳定表面对俯卧撑+（肩胛骨完全拉伸）时肩胛骨和上肢肌肉的肌电图（EMG）活动和协同激活的急性影响。通过体表肌电测定20名年轻男性在稳定和不稳定条件下（2个不稳定装置应用于手和脚）进行俯卧撑加时，前三角肌（AD）、后三角肌（PD）、胸大肌、肱二头肌（BB）、肱三头肌（TB）、上斜方肌（UT）、中斜方肌（MT）、下斜方肌（LT）和前锯肌（SA）的肌肉激活水平和共激活指数。采用配对t检验和Cohen d进行统计分析。结果显示，在不稳定表面进行俯卧撑时，肩胛骨稳定肌（SA、MT和LT）的肌电活动增加，而AD和PD肌的肌电活动减少。在不稳定表面进行运动时，肩胛肌的协同激活指数较高（SA-MT和UT-LT对）。TB-BB和AD-PD对无显著差异。这些结果表明，与不稳定表面相关的俯卧撑+运动产生了更高的肌电活动水平和肩胛骨稳定肌的协同激活指数。另一方面，使用不稳定的表面并不会对肩部肌肉产生同样的效果。
The aim of this study was to evaluate the acute effect of the use of stable and unstable surfaces on electromyography (EMG) activity and coactivation of the scapular and upper-limb muscles during the push-up plus (with full protraction of the scapula). Muscle activation of anterior deltoid (AD), posterior deltoid (PD), pectoralis major, biceps brachii (BB), triceps brachii (TB), upper trapezius (UT), middle trapezius (MT), lower trapezius (LT), and serratus anterior (SA) levels and coactivation index were determined by surface EMG in 20 young men during push-up plus performed on a stable and unstable condition (2 unstable devices applied to hands and feet). The paired t test and Cohen d were used for statistical analysis. The results showed that during the execution of the push-up plus on the unstable surface an increased EMG activity of the scapular stabilizing muscles (SA, MT, and LT) was observed, while AD and PD muscles showed a decrease. During exercise execution on the unstable surface there was a higher index of coactivation of the scapular muscles (SA-MT and UT-LT pairs). No significant differences were observed in TB-BB and AD-PD pairs. These results suggest that the push-up-plus exercise associated with unstable surfaces produced greater EMG activity levels and coactivation index of the scapular stabilizing muscle. On the other hand, the use of an unstable surface does not promote the same effect for the shoulder muscles.