Matsuzaki Yukiko, Heath Madison R, Khan Julianne M, Mackie Alexandra T, Spitzer Elad, Fabricant Peter D
Department of Pediatric Rehabilitation, Department of Sports Rehabilitation and Performance, Hospital for Special Surgery, New York, NY, USA.
Department of Sports Rehabilitation and Performance, Hospital for Special Surgery, New York, NY, USA.
HSS J. 2022 Nov;18(4):512-518. doi: 10.1177/15563316221082011. Epub 2022 Mar 18.
The literature on the reliability of qualitative and quantitative measures for running video analysis in the adolescent population is limited. Reliability of 2-dimensional (2D) video analysis has been reported in adult runners, but these findings may not apply to youth runners.
We sought to determine the intra-rater and inter-rater reliability of sagittal and frontal plane kinematics using 2D video analysis in healthy adolescent runners.
High-definition (1080p) videos were recorded of 10 healthy runners between 14 and 18 years old running on a treadmill at self-selected speed with markers attached to the cervical spine, pelvis, and lower extremities. Kinematic variables in the sagittal and frontal planes were measured using Dartfish Motion Analysis Software by 3 raters (2 sports medicine physical therapists and a research assistant). Intra- and inter-rater reliability were calculated using intraclass correlation coefficients (ICCs).
Of the 10 runners, 4 (40%) were male and the mean age was 16 ± 1.5 years. The intra-rater ICC for all kinematic variables ranged from 0.574 to 0.999 for the experienced physical therapist, and 0.367 to 0.973 for the inexperienced research assistant. The inter-rater ICC for all raters ranged from -0.01 to 0.941. Eleven kinematic variables showed substantial agreement and 4 showed almost perfect agreement. Step width and foot progression showed fair and poor agreement, respectively.
Running analysis using 2D video can be performed reliably in adolescents on all kinematic variables except for step width and foot progression. Inexperienced raters can be properly trained in the video analysis of running kinematics to consistently assess the same runner.
关于青少年群体跑步视频分析定性和定量测量可靠性的文献有限。二维（2D）视频分析在成年跑步者中的可靠性已有报道，但这些结果可能不适用于青少年跑步者。
我们试图通过二维视频分析确定健康青少年跑步者矢状面和额状面运动学的评分者内和评分者间可靠性。
对10名年龄在14至18岁之间的健康跑步者在跑步机上以自选速度跑步进行高清（1080p）视频录制，在颈椎、骨盆和下肢附着标记物。由3名评分者（2名运动医学物理治疗师和1名研究助理）使用达特鱼运动分析软件测量矢状面和额状面的运动学变量。使用组内相关系数（ICC）计算评分者内和评分者间可靠性。
10名跑步者中，4名（40%）为男性，平均年龄为16±1.5岁。经验丰富的物理治疗师对所有运动学变量的评分者内ICC范围为0.574至0.999，经验不足的研究助理为0.367至0.973。所有评分者的评分者间ICC范围为-0.01至0.941。11个运动学变量显示出高度一致性，4个显示出几乎完美的一致性。步幅和足前进方向分别显示出中等和较差的一致性。
除步幅和足前进方向外，二维视频跑步分析在青少年中对所有运动学变量都能可靠地进行。经验不足的评分者可以在跑步运动学视频分析方面接受适当培训，以始终如一地评估同一名跑步者。
