成都体育学院学报
成都體育學院學報
성도체육학원학보
Journal of Chengdu Physical Education Institute
2006年
4期
99~102
,共null页
速度滑冰 膝关节 屈伸肌群 优势交换 研究
速度滑冰 膝關節 屈伸肌群 優勢交換 研究
속도활빙 슬관절 굴신기군 우세교환 연구
speed skating; knee joint ; flexors and extensors; dominant exchange ; research
采用CYBEX6000等速测力仪，对53名（男30，女23）优秀速滑运动员膝关节屈伸肌群峰值力矩、总功、平均功率及其屈／伸比值进行了测试与研究。结果表明：双膝关节屈伸肌峰值力矩、总功随角速度递增而下降，平均率则升高；同一速度区屈伸肌群峰值力矩、总功及平均功率为伸肌大于屈肌；在不同速度区还伴有“优势交换”现象，低速区左侧伸肌显著大于右侧，高速区则以右侧伸肌增强为主。屈／伸肌比值随收缩速度增加略有提高，女子为46～68％，男子在56～76％之间。
採用CYBEX6000等速測力儀，對53名（男30，女23）優秀速滑運動員膝關節屈伸肌群峰值力矩、總功、平均功率及其屈／伸比值進行瞭測試與研究。結果錶明：雙膝關節屈伸肌峰值力矩、總功隨角速度遞增而下降，平均率則升高；同一速度區屈伸肌群峰值力矩、總功及平均功率為伸肌大于屈肌；在不同速度區還伴有“優勢交換”現象，低速區左側伸肌顯著大于右側，高速區則以右側伸肌增彊為主。屈／伸肌比值隨收縮速度增加略有提高，女子為46～68％，男子在56～76％之間。
채용CYBEX6000등속측력의，대53명（남30，녀23）우수속활운동원슬관절굴신기군봉치력구、총공、평균공솔급기굴／신비치진행료측시여연구。결과표명：쌍슬관절굴신기봉치력구、총공수각속도체증이하강，평균솔칙승고；동일속도구굴신기군봉치력구、총공급평균공솔위신기대우굴기；재불동속도구환반유“우세교환”현상，저속구좌측신기현저대우우측，고속구칙이우측신기증강위주。굴／신기비치수수축속도증가략유제고，녀자위46～68％，남자재56～76％지간。
By using CYBEX6000, the paper carries a comparative research on 53 speed skating elites （30 male and 23 female） to test the peak torque, total and average power, as well as the ratio of flexors and extensors of knee muscles. The results are as follows ： the peak torque and total power of knee flexors and extensors decrease with the increasing of angular speed, while the average power increases ; within the same range of speed, the peak torque of movement, total and average power generated from extensors are greater than flexors ; there are phenomenon of ＂dominant exchange＂ in different speed ranges, which means that in low speed range the extensors on left side are greater than the right extensors, while opposite in high speed range; the ratio of flexors and extensors increases slightly along with the joint angle speed. The ratio is 46 -68% for female and 56 -76% for male.
