(Department of Physical Education,Zhanjiang Normal College,Zhanjiang 524048,China) Abstract: To study the effect of chitosan on the delay of fatigue in rats. The rats were divided randomly into four groups,:control group, exercise group, and chitosan group (0.5g/kg.b.w.chitosan). The exercise time of rat was determined 4 weeks: to test the content of muscle and liver mitochondria MDA and ROS. Compared with exercise group. The content of MDA were decreased(P<0.05)in chitosan group; the content of muscle ROS were decreased(P<0.05)in chitosan group. Conclusion: Chitosan had a significant effect on anti-free-radical, raising exercise endurance and delaying fatigue in rats. Key words: rat; chitosan; exercise endurance; mitochondria; free radical metabolism |