Halski Tomasz, Żmijewski Piotr, Cięszczyk Paweł, Nowak Barbara, Ptaszkowski Kuba, Slupska Lucyna, Dymarek Robert, Taradaj Jakub
Institute of Physiotherapy, Public Higher Medical Professional School in Opole, Poland.
Department of Physiology, Institute of Sport in Warsaw, Poland.
J Hum Kinet. 2015 Jan 12;48:53-61. doi: 10.1515/hukin-2015-0091. eCollection 2015 Nov 22.
The objective of the study was to determine the order of muscle recruitment during the active hip joint extension in particular positions in young visually impaired athletes. The average recruitment time (ART) of the gluteus maximus (GM) and the hamstring muscle group (HMG) was assessed by the means of surface electromyography (sEMG). The sequence of muscle recruitment in the female and male group was also taken into consideration. This study followed a prospective, cross - sectional, randomised design, where 76 visually impaired athletes between the age of 18-25 years were enrolled into the research and selected on chosen inclusion and exclusion criteria. Finally, 64 young subjects (32 men and 32 women) were included in the study (age: 21.1 ± 1.05 years; body mass: 68.4 ± 12.4 kg; body height: 1.74 ± 0.09 m; BMI: 22.20 ± 2.25 kg/m2). All subjects were analysed for the ART of the GM and HMG during the active hip extension performed in two different positions, as well as resting and functional sEMG activity of each muscle. Between gender differences were comprised and the correlations between the ART of the GM and HMG with their functional sEMG activity during hip extension in both positions were shown. No significant differences between the ART of the GM and HMG were found (p>0.05). Furthermore, there was no significant difference of ART among both tested positions, as well in male as female subjects (p>0.05).
该研究的目的是确定年轻视障运动员在特定姿势下主动髋关节伸展过程中肌肉募集的顺序。通过表面肌电图（sEMG）评估臀大肌（GM）和腘绳肌群（HMG）的平均募集时间（ART）。同时也考虑了女性和男性组肌肉募集的顺序。本研究采用前瞻性、横断面、随机设计，18至25岁的76名视障运动员根据选定的纳入和排除标准入选研究。最终，64名年轻受试者（32名男性和32名女性）被纳入研究（年龄：21.1±1.05岁；体重：68.4±12.4千克；身高：1.74±0.09米；BMI：22.20±2.25千克/平方米）。分析了所有受试者在两个不同姿势下进行主动髋关节伸展时GM和HMG的ART，以及每块肌肉的静息和功能性sEMG活动。比较了性别差异，并显示了GM和HMG的ART与其在两个姿势下髋关节伸展过程中的功能性sEMG活动之间的相关性。未发现GM和HMG的ART之间存在显著差异（p>0.05）。此外，在测试的两个姿势之间，以及男性和女性受试者中，ART均无显著差异（p>0.05）。
