CFF reflexes central fatigue and BUN reflexes periphery fatigue. Their change are derangement,central fatigue emerges later,and recovers slower,in fencing we should think high of central fatigue.

• CFF所反映的中枢疲劳和BUN反映的外周疲劳不同步,中枢疲劳产生晚,恢复慢,击剑项目应重视中枢疲劳的评定。