Reinking Mark F, Carson Nina M, End Bridget M, Miller Olivia K, Munter Joshua D, McPoil Thomas G
Regis University.
Int J Sports Phys Ther. 2021 Feb 1;16(1):106-113. doi: 10.26603/001c.18821.
While previous research has assessed running kinematics for age-related differences that could increase the risk of a running-related injury, none of these studies have included high school aged runners or assessed running kinematics using 2-dimensional video analysis.
The purpose of this study was to compare sagittal plane kinematics during treadmill running in high school cross-country and young adult recreational runners using 2-dimensional motion analysis techniques.
Twenty-five high school cross-country runners (13 women, 12 men) and 25 young adult recreational runners (12 women, 13 men) consented to participate in this study. Reflective markers were placed on each lower extremity over multiple anatomical landmarks. After a five-minute acclimation period in which the participants ran on a treadmill at their preferred running speed, video data were recorded at 240 frames per second for all participants while they continued to run on the treadmill.
There were no significant differences between left and right extremities. The young adult recreational runners exhibited significantly greater vertical excursion of the center of mass ( = 4.64, p = .0001) compared to the high school runners. There was no significant difference between the two age groups regarding the six other sagittal plane variables.
The young adult recreational runners demonstrated an increased center-of-mass vertical excursion in comparison to high school cross-country runners. In addition, the results obtained in this study for kinematic variables using 2-dimensional motion analysis were similar to previously reported studies using 3-dimensional motion analysis, demonstrating that 2-dimensional motion analysis could be used for analyzing sagittal plane running kinematics in clinical settings.
4, Controlled laboratory study.
尽管先前的研究评估了与年龄相关的跑步运动学差异，这些差异可能会增加跑步相关损伤的风险，但这些研究均未纳入高中年龄的跑步者，也未使用二维视频分析来评估跑步运动学。
本研究的目的是使用二维运动分析技术，比较高中越野跑者和年轻成人休闲跑者在跑步机上跑步时的矢状面运动学。
25名高中越野跑者（13名女性，12名男性）和25名年轻成人休闲跑者（12名女性，13名男性）同意参与本研究。在多个解剖标志点上，在每个下肢放置反光标记。在参与者以其偏好的跑步速度在跑步机上跑步的五分钟适应期后，当所有参与者继续在跑步机上跑步时，以每秒240帧的速度记录视频数据。
左右下肢之间无显著差异。与高中跑者相比，年轻成人休闲跑者的质心垂直偏移显著更大（ = 4.64，p = .0001）。在其他六个矢状面变量方面，两个年龄组之间无显著差异。
与高中越野跑者相比，年轻成人休闲跑者的质心垂直偏移增加。此外，本研究使用二维运动分析获得的运动学变量结果与先前使用三维运动分析报道的研究结果相似，表明二维运动分析可用于临床环境中分析矢状面跑步运动学。
4，对照实验室研究。
