返回Google圖書搜尋

Effects of Antagonist Activation on Muscular Strength in Adults Between the Ages of 21-50

出版	Central Connecticut State University, 2018
URL	http://books.google.com.hk/books?id=ryTIuQEACAAJ&hl=&source=gbs_api

註釋Antagonist activation is warming up the antagonist muscles before performing exercise with the agonist muscles. Antagonist muscles have been activated many ways including contracting and stretching. Warming up the antagonist muscles has shown to increase performance in exercise and researchers hypothesized there would be no difference between antagonist protocols. Previous research has revealed that antagonist activation promotes an alteration in the tri-phasic pattern associated with fatigue, such as increased motor unit activation and increased activation of synergist and antagonist muscles, along with a shorter breaking phase of the antagonist muscles. The major aim of this study was to determine which type of antagonist activation (stretching or contracting) improves muscular strength on the chest press machine. The stretching protocol stretched the latissimus dorsi using a TRX, while the contracting protocol used a seated row machine. Both stretching and contracting the antagonist muscles improved muscular strength. Interestingly, stretching improved muscular strength on the chest press machine the most. Stretching the agonist muscles statically before exercise has been shown to decrease performance in exercise. This study demonstrates that while stretching the agonist muscles may decrease performance, stretching the antagonist muscles may increase performance. These findings could lead to improved warm ups in sport and exercise to improve performance.