干重活或运动时，如果用力不当或过猛，会感到腰部有响声，随即腰部剧痛，不能弯腰、转身和走路，严重者卧床不起，甚至翻身都极为困难。也有的当时疼痛不重，但第二天起床后即觉腰痛难忍，这就是人们常说的“闪腰”，医学上称为“急性腰扭伤”。为什么会发生腰扭伤呢？人... Doing heavy work or exercise, if the force is not appropriate or excessive, you will feel the waist sound, then the waist pain, can not bend over, turn around and walk, serious bedridden, or even stand up are extremely difficult. Some were not heavy at the time, but they felt sleepless the next day after getting up. This is what people commonly refer to as “flabby waist” and medically referred to as “acute lumbar sprain.” Why do I have a sprained spine? people...