Reliability of lower limb biomechanics in two sport-specific sidestep cutting tasks
Reliability of lower limb biomechanics in two sport-specific sidestep cutting tasks
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DOI：
10.1080/14763141.2016.1260766
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发表时间：
2018-01-01
影响因子：
2.2
通讯作者：
Krosshaug, Tron
中科院分区：
文献类型：
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作者：
Mok, Kam-Ming;Bahr, Roald;Krosshaug, Tron
本研究的目的是评估优秀女子手球和足球(足球)运动员进行的两项特定运动的踏步切割任务中，下肢生物力学在赛程内和赛间的可靠性。此外，我们的目标是确定获得可靠措施所需的最低试验次数。对19名优秀女子手球运动员和22名优秀女子足球(足球)运动员(M+/-SD：22+/-4岁，168+/-5 cm，66+/-8 kg)进行测试。信度由类内相关(ICCs)、典型误差和Spearman等级相关量化。当试验次数从3次增加到5次时，ICC值仅有轻微的改善。根据试验1-3，所有变量都显示出良好到极好的会话内可靠性(MICC：0.91，95%CI：0.89~0.93)，会话间的可靠性(MICC：0.73，95%CI：0.70~0.76)，中度正的会话间等级相关系数(M：0.72，95%CI：0.69~0.76)。与手球任务相比，足球任务中的一些额面生物力学变量表现出较低的间歇可靠性。期间排名的适度正和几乎很小的典型误差意味着，这些测量可以可靠地重现多期研究中个体的排名。从3次试验中可以获得足够的可靠性，当增加更多的试验时只有很小的改善。
The purpose of this study was to assess the within- and between-session reliability of lower limb biomechanics in two sport-specific sidestep cutting tasks performed by elite female handball and football (soccer) athletes. Moreover, we aimed at determining the minimum number of trials necessary to obtain a reliable measure. Nineteen elite female handball and 22 elite female football (soccer) athletes (M +/- SD: 22 +/- 4 yrs old, 168 +/- 5cm, 66 +/- 8kg) were tested. The reliability was quantified by intra-class correlations (ICCs), typical error and Spearman's rank correlation. Only minor improvements in ICC values were seen when increasing the number of trials from 3 to 5. Based on trials 1-3, all variables showed good to excellent within-session reliability (M ICC: 0.91, 95% CI: 0.89-0.93), fair to good between-session reliability (M ICC: 0.73, 95% CI: 0.70-0.76), moderately positive between-session rank correlation coefficients (M: 0.72, 95% CI: 0.69-0.76). A few frontal plane biomechanical variables displayed lower between-session reliability in the football task compared with the handball task. The moderately positive between-session ranking and practically small typical error implies that the measurements could reliably reproduce the ranking of individuals in multiple-session studies. Adequate reliability could be attained from 3 trials, with only minor improvements when adding more trials.