BACKGROUND Understanding the potential risks of running-related injuries in unilateral transfemoral amputees contributes to the development and implementation of the injury prevention programme in running gait rehabilitation. We investigated the vertical ground reaction force loading in unilateral transfemoral amputees who used running-specific prostheses across a range of running speeds. METHODS Ten unilateral transfemoral amputees and ten non-amputees performed running trials on an instrumented treadmill at the incremental speeds of 30, 40, 50, and 60% of their maximum acquired speeds. Per-step and cumulative vertical instantaneous loading rates were calculated from the vertical ground reaction force in the affected, unaffected, and non-amputated control limbs. FINDINGS Both the per-step and cumulative vertical instantaneous loading rates of the unaffected limbs in runners with unilateral transfemoral amputation were significantly greater than the affected and non-amputated control limbs at all speeds. INTERPRETATION The results of the present study suggest that runners with unilateral transfemoral amputation may be exposed to a greater risk of running-related injuries in their unaffected limbs compared to the affected and non-amputated control limbs.

中文翻译：

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在各种速度范围内，具有特定于跑步的假体的单侧经股截肢者的负荷率。

背景技术了解单侧经股截肢者跑步相关伤害的潜在风险有助于步态康复中伤害预防计划的制定和实施。我们调查了单侧经股截肢者在各种跑步速度范围内使用特定于跑步的假体的垂直地面反作用力负荷。方法十个单侧经股截肢者和十个非截肢者在仪器式跑步机上以其最大采集速度的30、40、50和60％的增量速度进行了运行试验。根据受影响，未受影响和未截肢的控制肢中的垂直地面反作用力，计算每步累积的垂直瞬时载荷率。研究结果表明，在所有速度下，单侧经股截肢的跑步者未受影响肢体的每步步长和累积垂直瞬时负载率均显着高于患肢和非截肢对照肢体。解释本研究的结果表明，与受影响和未截肢的对照肢体相比，单侧经股截肢的跑步者未受影响的肢体可能面临与跑步相关的伤害更大的风险。