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首页> 外文期刊>Journal of biomechanical engineering. >Characterization of Thigh and Shank Segment Angular Velocity During Jump Landing Tasks Commonly Used to Evaluate Risk for ACL Injury
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Characterization of Thigh and Shank Segment Angular Velocity During Jump Landing Tasks Commonly Used to Evaluate Risk for ACL Injury

机译：大腿和小腿节角速度在跳跃着陆任务期间通常用于评估ACL损伤风险的特征

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The dynamic movements associated with anterior cruciate ligament (ACL) injury during jump landing suggest that limb segment angular velocity can provide important information for understanding the conditions that lead to an injury. Angular velocity measures could provide a quick and simple method of assessing injury risk without the constraints of a laboratory. The objective of this study was to assess the inter-subject variations and the sensitivity of the thigh and shank segment angular velocity in order to determine if these measures could be used to characterize jump landing mechanisms. Additionally, this study tested the correlation between angular velocity and the knee abduction moment. Thirty-six healthy participants (18 male) performed drop jumps with bilateral and unilateral landing. Thigh and shank angular velocities were measured by a wearable inertial-based system, and external knee moments were measured using a marker-based system. Discrete parameters were extracted from the data and compared between systems. For both jumping tasks, the angular velocity curves were well defined movement patterns with high inter-subject similarity in the sagittal plane and moderate to good similarity in the coronal and transverse planes. The angular velocity parameters were also able to detect differences between the two jumping tasks that were consistent across subjects. Furthermore, the coronal angular velocities were significantly correlated with the knee abduction moment (R of 0.28-0.51), which is a strong indicator of ACL injury risk. This study suggested that the thigh and shank angular velocities, which describe the angular dynamics of the movement, should be considered in future studies about ACL injury mechanisms.
机译：跳跃着陆过程中与前十字韧带（ACL）损伤相关的动态运动表明，肢体节段角速度可为了解导致损伤的状况提供重要信息。角速度测量可以提供一种快速而简单的方法来评估伤害风险，而无需实验室的限制。这项研究的目的是评估受试者之间的变化以及大腿和小腿节段角速度的敏感性，以确定这些措施是否可用于表征跳跃着陆机制。此外，这项研究测试了角速度和膝盖外展力矩之间的相关性。 36名健康参与者（18名男性）通过双侧和单侧着陆进行了跳跳动作。大腿和小腿的角速度由可穿戴的基于惯性的系统测量，外膝力矩由基于标记的系统测量。从数据中提取离散参数，并在系统之间进行比较。对于这两个跳跃任务，角速度曲线都是定义明确的运动模式，在矢状面中具有较高的受试者间相似度，在冠状面和横向面中具有中等至良好的相似度。角速度参数也能够检测到两个跨学科的跳跃任务之间的差异。此外，冠状角速度与膝外展力矩显着相关（R为0.28-0.51），这是ACL受伤风险的有力指标。这项研究表明，在有关ACL损伤机制的未来研究中，应考虑大腿和小腿的角速度，这些速度描述了运动的角动力学。

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