The reliability and validity of a video-based method for assessing hamstring strength in football players.
The reliability and validity of a video-based method for assessing hamstring strength in football players.
复制标题
DOI：
10.1016/j.jesf.2017.04.001
复制
发表时间：
2017-06
影响因子：
2.8
通讯作者：
Chan KM
中科院分区：
文献类型：
--
作者：
Lee JWY;Li C;Yung PSH;Chan KM
等速测力法评估腘绳肌力量受到各种实际问题的限制，如时间和成本。一个视频为基础的北欧腿筋练习介绍作为一种替代选择。本研究的目的是评估1。会话间可靠性和2.）与标准化等速测力法相比，测试方法的同时有效性。30名男性精英足球运动员被招募参加这项研究。从北欧腿筋练习，视频分析确定的北欧断点角度，参与者不再能承受的力量下降（偏心模式）和秒数，球员可以保持在30°前屈角度（等距模式）进行了测量。计算了会话间可靠性的类内相关系数，当前方法与等速测力法之间的Pearson r相关性。偏心模式的可靠性中等（ICC（2，1）= 0.82），等长模式的可靠性较差（ICC（2，1）= 0.57）。离心模式的Nordic断点角与向心和离心腘绳肌峰值扭矩显著相关（r = 0.48和0.58，p < 0.001），而等长模式的Nordic断点角与向心和离心腘绳肌峰值扭矩不相关（r = 0.02 ~ 0.07，p > 0.05）。视频测试的偏心模式是一种中等可靠和有效的方法来测量偏心腿筋力量的优秀足球运动员。
Evaluating hamstring strength by isokinetic dynamometry is limited by various practical issues such as time and cost. A video-based Nordic hamstring exercise is introduced as an alternative option. The aims of this study are to evaluate 1.) the between-session reliability and 2.) concurrent validity of the testing method compared to a standardized isokinetic dynamometry. Thirty male elite footballers were recruited for the study. From the Nordic hamstring exercise, the video-analysis-determined Nordic break-point angles where the participant could no longer withstand the force of the fall (eccentric mode) and the number of seconds that the player could hold at 30° forward flexion angle (isometric mode) were measured. Intra-class correlation coefficients for between-session reliability, Pearson r correlations between the current method and isokinetic dynamometry were calculated. The reliability of the eccentric mode was moderate (ICC (2,1) = 0.82) while that of isometric mode was poor (ICC (2,1) = 0.57). The Nordic break-point angle of the eccentric mode significantly correlated with the concentric and eccentric hamstring peak torque (r = 0.48 and 0.58, p < 0.001), while the isometric was not (r = 0.02 - 0.07, p > 0.05). The eccentric mode of the video-based hamstring strength test was a moderately reliable and valid method to measure the eccentric hamstring strength in elite football players.
登录
查看更多内容
影响因子：
4.8
作者：
Engebretsen, Anders Hauge;Myklebust, Grethe;Bahr, Roald
通讯作者：
Bahr, Roald
影响因子：
1.7
作者：
Sconce, Emma;Jones, Paul;Graham-Smith, Philip
通讯作者：
Graham-Smith, Philip
DOI：
10.1034/j.1600-0838.2003.00312.x
发表时间：
2003-08-01
影响因子：
4.1
作者：
Askling, C;Karlsson, J;Thorstensson, A
通讯作者：
Thorstensson, A
影响因子：
2
作者：
Norris, Beth S.;Olson, Sharon L.
通讯作者：
Olson, Sharon L.
DOI：
10.1016/j.asmart.2014.08.002
发表时间：
2014-10-01
影响因子：
2.1
作者：
Lee, Justin Wai-Yuk;Mok, Kam-Ming;Chan, Kai-Ming
通讯作者：
Chan, Kai-Ming