以南方籍新兵为受试对象 ,观察冷习服对机体氨基酸代谢的影响。结果表明 ,冷习服前后各种必需氨基酸摄取量均在正常标准之上 ,超出供给量的 5～ 10倍。只有蛋氨酸的摄取量 ,冷习服后较冷习服前有所减低 ,但仍在正常范围之内。摄入热能在正常范围。经过一个月的耐寒锻炼取得冷习服 ,血清支链氨基酸明显变化 ,除甘氨酸、结氨酸、精氨酸、丝氨酸、胱氨酸 (Gly、Ser、Cys)明显减少 ,除蛋氨酸 (Met)外其他支链氨基酸均有明显增高。血清亮氨酸、异亮氨酸、丙氨酸、苏氨酸 (Leu、Ile、Ala、Thr、Val、Arg、Pro)水平在冷习服后均有明显的升高 (P<0 0 5 ) ,说明冷习服后氨基酸的代谢有明显增强。目前部队的膳食结构和组成有助于加速冷习服的建立 Recruits from southern Chinese were used as subjects to observe the effects of cold acclimation on amino acid metabolism. The results showed that before and after cold acclimation of various essential amino acid intake above the normal level, exceeding the supply of 5 to 10 times. Only methionine intake, cold accustomed to reduce the service before the cold, but still within the normal range. Ingestion of heat in the normal range. After one month cold hard training, the serum branched-chain amino acids changed significantly, except for glycine, arginine, arginine, serine and cystine (Gly, Ser, Cys) Other branched-chain amino acids were significantly higher. Serum levels of leucine, isoleucine, alanine, threonine (Leu, Ile, Ala, Thr, Val, Arg, Pro) were significantly increased after cold acclimation (P <0.05 ), Indicating that the metabolism of amino acids after cold acclimation was significantly enhanced. The current dietary composition and composition of the troops help to speed up the establishment of cold accustoms