经常见到一些老年人走路时背着手。专家们发现,老年人背手走路,会增加不安全因素。老年人背转双手时,身体重心前移,使本已佝偻的上身更加向前倾斜。以这样的姿势走路,由于重心不稳,稍有不慎就容易摔倒,易导致肱骨颈骨折或肘部受伤,若俯冲向前,磕破嘴唇或磕掉牙齿都有可能。老人 Often see some older people carrying their hands while walking. Experts found that the elderly walking backwards, will increase the insecurity. When the elderly turn their hands back, the center of gravity of the body moves forward, tilting the already upper body forward. Walking in this position, due to unstable center of gravity, the slightest mistake on the easy fall, easily lead to fracture of the humerus neck or elbow injury, if dive forward, knock broken lips or knock off the teeth are possible. Old man