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首页> 外文会议>International Symposium on Biomechanics in Sports vol.1; 20050822-27; Beijing(CN) >PROSTHETIC LIMB VERSUS INTACT LIMB TAKE-OFF IN THE AMPUTEE LONG JUMP
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PROSTHETIC LIMB VERSUS INTACT LIMB TAKE-OFF IN THE AMPUTEE LONG JUMP

机译：假肢与完整肢体在完整跳跃中的对比

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摘要

This study investigated whether selected kinematic parameters in the amputee long jump were influenced by the choice of take-off leg (prosthetic or intact). Seven male trans-femoral (TF) and seven male trans-tibial (TT) amputees competing in a World Championships final were video filmed at 100 Hz in the sagittal plane. Selected kinematic variables at touch-down onto the take-off board were computed to define postural characteristics influencing take-off. The TT athletes who took off from their prosthetic limb were able to control their downward velocity at touch-down, as demonstrated by able-bodied athletes, while the TT athletes who took-off from their intact limb could not. Thus, for TT athletes there appears to be some advantage in taking off from their prosthetic limb. The TF athletes were less able to control their downward velocity than the TT athletes. Only one athlete took-off from his prosthetic limb and used a different technique to the rest of the group. Despite possible advantages for this athlete, it is likely that a long jump take-off on the prosthetic limb would lead to higher forces acting through the stump and a greater risk of injury.
机译：这项研究调查了被截肢者跳远中选择的运动学参数是否受起飞腿（假肢或完整腿）选择的影响。在矢状面内以100 Hz的频率拍摄了七个在世界锦标赛决赛中竞争的男性股骨截骨（TF）和七个男性胫骨截肢（TT）的视频。计算着陆点到起飞板上的选定运动学变量，以定义影响起飞的姿势特征。从身体健壮的肢体起飞的TT运动员能够在着地时控制其向下的速度，这由健全的运动员证明，而从完整肢体起飞的TT运动员则无法。因此，对于TT运动员来说，从假肢上起飞似乎有一些优势。与TT运动员相比，TF运动员无法控制自己的向下速度。只有一名运动员从假肢上起飞，并对其余组使用了不同的技术。尽管此运动员可能具有优势，但假肢上的跳远起跳很可能会导致更大的力通过树桩起作用，并有更大的受伤风险。

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