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研究离心运动后快慢骨骼肌生物力学性质的变化，以及与延迟性骨骼肌损伤的关系。结果发现大鼠经间歇性离心运动训练后，快慢骨骼肌被动拉伸时的极限强度、极限应变、弹性模量、能量吸收等材料力学性质，在运动后随时间的延长而逐渐显著增强，出现超量恢复。结果提示：可能正是由于离心运动后骨骼肌材料力学性质的变化，离心运动有效地阻止或减轻了延迟性肌肉酸痛的发生。
To study the changes of fast and slow skeletal muscle biomechanics after eccentric exercise and the relationship with delayed skeletal muscle injury. The results showed that after intermittent eccentric exercise training, the ultimate strength, ultimate strain, elastic modulus, energy absorption and other mechanical properties of the fast and slow skeletal muscle during passive stretching gradually increased significantly after exercise Excessive recovery. The results suggest that it is possible that eccentric motion may effectively prevent or mitigate the delayed onset of muscle aches due to changes in the mechanical properties of skeletal muscle material after eccentric exercise.