人之足,犹如树之根,常言有“树枯根先竭,人老脚先衰”的说法。人进入老年“人老腿先老”。腿部的运动机能较之手臂等运动器官早衰,常表现为腿的行动不便,发软无力。据研究,人到中年以后,腿部肌肉开始老化,骨质逐渐疏松,弹性、韧性降低;腿的衰老是人老的先躯, Man’s foot, like the root of the tree, often say there is “dry tree roots first exhausted, people old feet first decline” argument. People into old age, “the first old leg.” Leg movement than arm and other organs of premature aging, often manifested as leg mobility, weakness. According to the study, after middle age, the leg muscles begin to age, the bone gradually loosens, elasticity and toughness are reduced; the aging of the legs is the forerunner of people,