DOMS performance: pain, woody.

Principle and reason: muscle fiber micro-injury+inflammatory reaction+accumulation of metabolites+nerve endings, etc. Do not practice often+overload.

Prevention: warm-up+relaxation+massage+nutrition+relaxation+training cycle.

Relief: low-intensity exercise, hot bath, massage, nutritional supplement, death.

Correct cognition: defense signals, moderate muscle growth, transition will regress.