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目的 :探讨酪氨酸对高原人体运动时血乳酸 (BLA)、肌红蛋白 (Mb)及血氨(Ammo)的影响 ;方法 :对进驻海拔 3 70 0m高原半年的 3 0名健康青年随机分为酪氨酸组、乙酰唑胺组及对照组 ,每组 1 0人 ,在安静时、服药前、服药第 1 0天、第 1 5天及停药第 1 0天、第 2 0天分别采用功量自行车进行渐增负荷运动至力竭 ,测定其血清中BLA、Mb和Ammo含量 ;结果 :①高原力竭运动使BLA、Mb和Ammo增加 (P <0 .0 1 ) ;②给予酪氨酸、乙酰唑胺 1 0天即可使BLA、Mb和Ammo降低 (P <0 .0 1或P <0 .0 5) ;③乙酰唑胺停药 1 0天药效消失 ,酪氨酸停药 2 0天药效消失 ;结论 :酪氨酸、乙酰唑胺能增强高原机体能量代谢 ,延缓运动性疲劳发生 ,且酪氨酸效果更明显
Objective: To investigate the effect of tyrosine on blood lactate (BLA), myoglobin (Mb) and blood ammonia (Ammo) during altitude exercise. Methods: 30 healthy young people stationed in altitude of 3 700 m were randomly assigned For the tyrosine group, acetazolamide group and control group, each group of 10 people in the quiet, before taking the medication on the first 0 days, on the 1st 5 days and the withdrawal of the day 0, day 20 respectively The weight of BLA, Mb and Ammo in serum were measured by using power bicycle. The results showed that: (1) BLA, Mb and Ammo increased (P <0.01) (P <0.01 or P <0.05). (3) Acetazolamide disappeared on day 10 and disappeared. Tyrosine Conclusions: Tyrosine and acetazolamide can enhance the energy metabolism of plateau, delay the occurrence of exercise-induced fatigue, and the tyrosine effect is more obvious