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The elderly are tend to flex hip joint more and use hip extensor muscle to propel the body forward.
老年人在上坡时倾向以弯曲髋关节，多用髋伸直肌群的策略使重心向前，身体推进。
The extensor muscle strength of shoulder joint is more influencing than the flexor muscle strength of shoulder.
肩关节伸肌群力量较屈肌群力量对短跑成绩影响大。
Results The mean follow-up was 8 months. The extensor muscle strength and electromyography in forearm completely recovered.
结果术后平均随访8个月，前臂伸肌肌力及肌电图检查均恢复正常。
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