Because the biomechanical propertie s of muscles were markedly strengthened in trained rats,it might prevent mus cle injuries and delay the onset of muscular sorenss.

• 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。