Abstract: In order to evaluate the feasibility of bamboo leaf extract （BLE） as an anti-fatigue supplements in sports training， the effect of high.intensity endurance training and supplementing BLE on brain biochemical parameters of rats was studied. Twenty four SD rats were randomly divided into quiet group， sport group and dosed sport group， with 8 rats in each. Sport group and dosed sport group experienced 6-week treadmill training. Dosed sport group was also fed 300 mg·kg-1·d-1 BLE suspension. The results showed that high-intensity endurance training caused significant decrease in SOD and CAT activity and T-AOC level， and significant increase in MDA content in brain， but taking BLE inhibited the downward trend of SOD and CAT activity and T-AOC level， the upward trend of brain MDA content and increased exhaustive exercise time by 28.87%. Above results indicated that BLE is suitable as raw material for anti-fatigue supplements.

Key words: bamboo leaf extract, antioxidation, brain, athletic ability