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首页> 外文会议>International Symposium on Biomechanics in Sports vol.1; 20050822-27; Beijing(CN) >WHAT CAN WE LEARN FROM IN VIVO BIOMECHANICAL INVESTIGATIONS OF LOWER EXTREMITY?
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WHAT CAN WE LEARN FROM IN VIVO BIOMECHANICAL INVESTIGATIONS OF LOWER EXTREMITY?

机译：我们可以从下肢的体内生物力学研究中学到什么？

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摘要

In vivo biomechanical investigations of human movement are needed to better understand function and injury mechanism of the musculoskeletal system and to validate models or methods that otherwise could not be validated. In this report, we showcase two biomechanical approaches that use in vivo experiments to directly measure skin movement artefacts and the role of hamstring neuromuscular control in protecting the anterior cruciate ligament (ACL). The study on skin movement artefacts revealed that surface markers provided kinematics which can present repeatable patterns within a participant for various movements. However these repeatable patterns must not be misinterpreted as accurately representing skeletal kinematics, at least beyond the sagittal plane of movement. In the second investigation the neuromuscular control of the hamstring and gastrocnemius muscles showed a protective mechanism to prevent excessive ACL elongation, whereas the quadriceps muscles resisted against the collapsing of the knee joint after foot impact with the ground. This paper highlights the value of in vivo experimentation in contributing to our understanding of biomechanical functions or processes.
机译：需要对人体运动进行体内生物力学研究，以更好地了解肌肉骨骼系统的功能和损伤机制，并验证否则无法验证的模型或方法。在本报告中，我们展示了两种生物力学方法，它们利用体内实验直接测量皮肤运动伪影以及绳肌神经肌肉控制在保护前十字韧带（ACL）中的作用。对皮肤运动伪影的研究表明，表面标记提供了运动学，可以在参与者内部呈现出可重复的模式以进行各种运动。但是，这些可重复的模式至少在超出矢状运动平面时，不能误解为准确地表示骨骼运动学。在第二项研究中，the肌和腓肠肌的神经肌肉控制显示出一种保护机制，可防止过度的ACL伸长，而股四头肌在足部与地面碰撞后抵抗膝盖关节的塌陷。本文着重介绍了体内实验的价值，有助于我们对生物力学功能或过程的理解。

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