Unit of Physiotherapy, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden; Sport Without Injury ProgrammE (SWIPE), Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
Unit of Physiotherapy, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden; Sport Without Injury ProgrammE (SWIPE), Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
Phys Ther Sport. 2021 Jan;47:156-164. doi: 10.1016/j.ptsp.2020.11.031. Epub 2020 Nov 24.
To investigate intra- and interrater reliability of the subjective assessments of filmed DVJ and TJA in youth male and female soccer players and to compare subjective assessment of the DVJ with two-dimensional movement analysis.
Cross-sectional study.
115 soccer players (66 boys, 49 girls) mean age 14 ± 1 (range 13-16) years.
Knee control during landing phase of DVJ was assessed using a 3-graded scoring scale. TJA was assessed according to ten criteria using a dichotomous grading scale. Subjective assessment of DVJ was compared with calculation of normalized knee separation distance (NKSD).
Intrarater reliability for DVJ was substantial to almost perfect (kappa 0.72 rater 1; 0.85 rater 2). Interrater reliability was substantial to almost perfect (kappa from 0.68 to 0.83). The TJA total score intrarater reliability was ICC 0.59 for rater 1 and 0.90 for rater 2. Interrater reliability ranged from ICC 0.51 to 0.60. There were between-group differences in mean NKSD during DVJ for players rated as 0, 1 and 2, but within-group variability was large.
Assessment of DVJ and TJA in youth athletes was rater dependent. Players with subjectively assessed reduced or poor knee control had smaller normalized knee separation distance in DVJ.
研究青年男性和女性足球运动员对拍摄的 DVJ 和 TJA 的主观评估的组内和组间可靠性，并将 DVJ 的主观评估与二维运动分析进行比较。
横断面研究。
115 名足球运动员（66 名男孩，49 名女孩），平均年龄 14±1 岁（范围 13-16 岁）。
使用 3 级评分量表评估 DVJ 着陆阶段的膝关节控制。根据 10 项标准使用二分制评分量表评估 TJA。将 DVJ 的主观评估与归一化膝关节分离距离（NKSD）的计算进行比较。
DVJ 的组内可靠性为高度可靠至几乎完美（kappa 0.72 评估者 1；0.85 评估者 2）。组间可靠性为高度可靠至几乎完美（kappa 值从 0.68 到 0.83）。TJA 总分的组内可靠性 ICC 为 0.59（评估者 1）和 0.90（评估者 2）。组间可靠性范围为 ICC 0.51 至 0.60。在 DVJ 中，评估为 0、1 和 2 的球员的平均 NKSD 存在组间差异，但组内变异性较大。
对青年运动员的 DVJ 和 TJA 的评估依赖于评估者。主观评估膝关节控制降低或不佳的运动员在 DVJ 中的归一化膝关节分离距离较小。
