单支撑施加时机的选择受到现场土性参数的影响较大。
The infliction occasion of the sustain is influenced by the soil character on ground.
研究结果表明：运动员自由滑行时间和单支撑时间偏长，降低了蹬冰频率；
The result shows that if the athlete's slide time is too long, it will reduce the frequency of skating.
结论：在自然行走过程中，偏瘫患者双下肢的单支撑期和摆动期的明显缩短是导致患者步行周期延长，步态异常，步速减慢，步行能力下降的根本原因。
Conclusion: The study indicates that the shorter single support time during the gait cycle in patients is responsible for the abnormal walking velocity , awful gait and decreased ability of walking.
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