动物实验表明,肌肉工作引起早期肌僵硬的过程中有突变与持续性。僵硬后即刻与24小时该肌肌节长度与对照肌相比明显缩短,肌原纤维排列规则,说明处于放松不全(痉挛)状态;48、72小时肌原纤维排列紊乱,出现“Z线流”,肌核见明显切迹,染色质弥散,出现中位核。0—72小时均见肌纤维间隙增宽,显示水肿。 Animal experiments show that muscle work in early muscle stiffness caused by mutations and persistence. Stiff immediately and 24 hours after the muscle sarcopenia length compared with the control muscle was significantly shortened, myofibril arrangement rules, indicating that in a state of relaxation (spasticity); 48,72 hours myofibril arranged disorder, there “Z flow” Muscle, see significant notch, chromatin dispersion, the median nuclear. 0-72 hours to see muscle fiber gap widened, showing edema.