经常见到一些老年人,喜欢背着手走路,据说是为了纠正驼背。专家指出,这是一种误解。老年人背着手走路,于驼背无益,反而有害。同时还会增加不安全因素。老年人背转双手时,手臂向内向后旋转,上臂的肩端就会向前旋出,肩关节相应向前向内扣出,上身重心前移,使本已佝偻的上身更加向? Often see some elderly people, like to walk with their hands, is said to be correct humpback. Experts point out that this is a misunderstanding. Older people carrying hands to walk, useless on the hump, but harmful. At the same time will increase the insecurity. When the elderly turn their hands backwards, the arm rotates inwardly and backward, the shoulder of the upper arm will be screwed forward and the shoulder joint will buckle forwardly and inwardly, the upper body center of gravity will be moved forward, so that the already upper part of the upper body will turn to?