介绍了两种条件性氨基酸———精氨酸 (Arg)和谷氨酰胺 (Gln)的生物功能 ,探讨了它们与运动的关系 .发现中强度长时间的运动训练会使Arg和Gln浓度下降 ,影响运动能力 ;适当补充Arg或Orn和BCAA或Gln ,可使Arg和Gln的浓度恢复和升高 ,改善由于运动引起的免疫系统和神经系统等功能的下降 ,延缓疲劳发生和促进疲劳恢复 . The biological function of two kinds of conditional amino acids, arginine (Arg) and glutamine (Gln), was introduced and their relationship with exercise was discussed.The results showed that moderate and long exercise training could reduce Arg and Gln concentrations , Arg or Orn and BCAA or Gln, Arg and Gln concentration can be restored and increased to improve the decline of the immune system and nervous system due to exercise, delay the occurrence of fatigue and promote fatigue recovery.