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首页> 外文会议>Asia-Pacific Congress on Sports Technology >Kinematics of elite unilateral below-elbow amputee treadmill-running-a case study
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Kinematics of elite unilateral below-elbow amputee treadmill-running-a case study

机译：精英单边的运动学下方 - 肘部截肢者跑步者跑步 - 以案例研究为例

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Although scientists have already shown interest in the contribution of upper body movements (e.g. arm swing) to the biomechanics of running and walking, no study so far has investigated the influence of upper limb impairment on running or walking, respectively. Nevertheless, the International Paralympic Committee partly bases its classification system for athletes with unilateral through or above wrist impairment on research done with able-bodied subjects nearly three decades ago. Hence, in this study a high caliber male middle distance runner (age: 26 yrs., height: 183 cm, weight: 67 kg; personal bests: 400m: 0:48.45 min, 800m: 1:50.92 min, multiple medal winner at Paralympic Games, currently being classified as a T47 due to a missing right forearm from just a few centimeters below the elbow on) performed several trials without and with additional weight (0.5kg, cu worn just proximal to the elbow joint) on the impaired arm at running speeds of 12, 16, 20 and 24 km/h on a treadmill. Concurrently a full-body motion analysis using a ten infrared camera Vicon motion analysis system was performed. Stance phase duration, arm swing velocity and angle between hip and shoulder axis were analyzed. It could be shown, that without weight stance phase duration for the right leg was highly significantly (alpha = 95%) longer at all running speeds than for the left leg, that arm swing velocity was faster for the right (impaired) arm. The hip-shoulder angle, however, did not show any significant difference for right or left side. Running with additional weight changed stance phase duration differences between left and right (not significantly), reduced the velocity differences between the impaired and sound limb (not significantly) and changed the rotation between hip and shoulder (significantly). The results of this study indicate that a missing upper limb affects running kinematics more clearly as hitherto assumed.
机译：虽然科学家已经表现出对跑步和行走的生物力学的上半身运动（例如ARM SWING）的贡献，但到目前为止还没有研究过肢体损伤分别对跑步或行走的影响。尽管如此，国际残奥会委员会将其基于其对单侧的运动员的分类系统，通过近三十年前的能够拥有能干的主题的研究。因此，在这项研究中，一个高口径男中间距离跑步者（年龄：26岁，高度：183厘米，重量：67千克;个人最佳：400米：0：48.45分钟，800米：1：50.92分钟，多枚奖牌冠军随着肘部下方的几厘米缺失的右前臂丢失的残奥会，目前被归类为T47）进行了几种试验，无需额外的重量（0.5kg，Cu坐在肘关节靠近的肘关节）上的重量在跑步机上运行速度为12,16,20和24 km / h。同时进行使用10个红外摄像机VICON运动分析系统的全身运动分析。分析了静态阶段持续时间，臂和肩轴之间的臂摆速和角度。可以示出，在右腿的重量姿势阶段持续时间非常显着（alpha = 95％）在所有运行速度下比左腿更长，该臂摆动速度更快地为右侧（受损）臂。然而，髋肩角度没有显示出右侧或左侧的任何显着差异。使用额外的重量更改左右（不显着）之间的姿态阶段持续时间差异，减少了受损和声音肢体之间的速度差异（不显着），并改变臀部和肩部之间的旋转（显着）。该研究的结果表明，缺失的上肢在迄今为止的假设中更清楚地影响运动学。

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