【摘要】 本研究选用９ 只健康成年 Ｓ Ｄ 雄性大白鼠，采用一次性力竭游泳运动方式，通过运动前及运动后即刻从心脏取血， 测定其力竭运动前后血浆尿素氮、支链氨基酸、氨的量变情况。结果表明急性力竭性运动后大鼠血浆尿素氮、支链氨基酸、氨含量均呈明显增高， 且前两者的变化差异有显著意义（ Ｐ＜ ０． ０５）。结果提示急性力竭运动后体内蛋白质分解代谢、支链氨基酸的代谢增强，血浆氨、支链氨基酸的含量变化与运动性疲劳的出现和疲劳程度有密切关系。更多还原

【Abstract】 In this thesis, nine healthy adult Sprague-Dawley male rats were selected. The tected rats were forced to continuously swim toll exhaustion in one test period, the blood was sampled from heart and the charges of plasma Bun,Branched-Chain Amino. Amiro Acids,Ammonia were increase noticeably, and the changes of Bun and Branched-Chain Amino Acids were different campare with before exercise(P<0.05). The vesults suggest:The protein and Branched-Chain Amino Acids’s metablism were increase after acute exhaustion exercise, and the quantity changes of plasma Branched-Chain Amino Acids and Ammonia were well related with exertional fatigue nd it’s degree.更多还原