【摘要】 肌肉拉伤是运动损伤中的常见病。在临床上认为,大多数肌肉拉伤是由于肌肉性质改变造成的局部损伤,可以诊断出损伤的位置,多发生于靠近肌肉—肌腱连接处的肌纤维。生物力学研究表明:当肌肉受到的拉伸力大于其最大等长收缩力时将会引起损伤。比较肌肉在被动拉伸和有神经刺激收缩的主动拉伸时发现,在损伤时拉伸力有小量增加,应变没有变化,但吸收能量的能力却有很大的变化。实验还证实了肌肉的粘弹性。这些研究成果说明:肌肉吸收能量的能力和粘弹性的改变对于预防肌肉损伤是非常重要的。更多还原

【Abstract】 The muscle strain injury is usually cited as the most frequent injury in sport. Clinical studies suggest that most injuries cause partial disruption of certain characteristics muscle. Diagnostic imaging studies can demonstrate the location of many injuries. They are occurred susceptive muscle fibers near muscletendon junction. Biomechanical studies show that muscle failure occurs at force much larger than maximal isometric force, stretch is necessary to create injury. Comparing to the passively stretched muscle, muscle activated by nerve contraction and stretched to failure attains a small increase in force at failure, no change in strain to failure, and large increase in energy absorbed prior to failure. Experiments also confirm viscose-elastic properties of muscle. There results may be important in understanding how muscle injury might be prevented.更多还原