近日一项研究发现,曾经发生过脑震荡的运动员更容易出现膝盖韧带的撕裂,也更容易扭伤踝关节。为了找出原因,美国科学家观察了39名美国高校校队的足球运动员。在这39人当中,有13人曾遭受过头部撞击。研究发现,平均50天之后,这些运动员的臀部、腿部的肌肉和骨骼仍然没有恢复至正常水平——要么过于僵硬,要么过于松她。长达3个月之后,他们出现肌肉和骨骼损伤的可能性仍然居 A recent study found that concussion-prone athletes were more prone to tearing of the ligaments of the knee and also more prone to sprained ankles. To find out why, American scientists watched football players from 39 U.S. college teams. Out of these 39 people, 13 have been hit head-on. The study found that after an average of 50 days, the athlete’s hips, leg muscles and bones still did not return to normal - either too stiff or too loose her. After up to 3 months, they still have a chance of muscle and bone damage