天津体育学院学报
天津體育學院學報
천진체육학원학보
Journal of Tianjin Institute of Physical Education
2006年
4期
297~298
,共null页
支链氨基酸 运动 糖异生
支鏈氨基痠 運動 糖異生
지련안기산 운동 당이생
BCAA; exercise; gluconeogenesis
目的：探讨补充支链氨基酸（BCAA）对不同负荷运动后及恢复期糖代谢和糖异生的影响。方法；20名赛艇运动员随机分为2组（BCAA组和对照组），BCAA组每天补充支链氨基酸，时间为4周，对照组则补充安慰剂。在实验期间，两组运动员都进行相同负荷的运动训练。4周后，在赛艇测功仪上进行模拟2km和5km的耐力测试，并分别在运动前、运动后即刻和运动后30min取血测定血糖、丙氨酸和乳酸。结果：在耐力极限负荷运动中，BCAA组的血糖只在运动后即刻明显下降（P 〈0．05），而对照组则在运动后即刻和运动后30min都明显低于安静时水平（P〈0．05）。BCAA组血丙氨酸浓度在运动后即刻和运动后30min均明显增加（P，〈0．05），而对照组血丙氨酸浓度则在运动后出现明显的下降（P〈0．05）。BCAA组的血乳酸值在运动后明显低于对照组（P〈0．05）。结论：补充BCAA可促进力竭运动后及恢复期糖的异生、延缓疲劳发生和促进运动后疲劳的消除。
目的：探討補充支鏈氨基痠（BCAA）對不同負荷運動後及恢複期糖代謝和糖異生的影響。方法；20名賽艇運動員隨機分為2組（BCAA組和對照組），BCAA組每天補充支鏈氨基痠，時間為4週，對照組則補充安慰劑。在實驗期間，兩組運動員都進行相同負荷的運動訓練。4週後，在賽艇測功儀上進行模擬2km和5km的耐力測試，併分彆在運動前、運動後即刻和運動後30min取血測定血糖、丙氨痠和乳痠。結果：在耐力極限負荷運動中，BCAA組的血糖隻在運動後即刻明顯下降（P 〈0．05），而對照組則在運動後即刻和運動後30min都明顯低于安靜時水平（P〈0．05）。BCAA組血丙氨痠濃度在運動後即刻和運動後30min均明顯增加（P，〈0．05），而對照組血丙氨痠濃度則在運動後齣現明顯的下降（P〈0．05）。BCAA組的血乳痠值在運動後明顯低于對照組（P〈0．05）。結論：補充BCAA可促進力竭運動後及恢複期糖的異生、延緩疲勞髮生和促進運動後疲勞的消除。
목적：탐토보충지련안기산（BCAA）대불동부하운동후급회복기당대사화당이생적영향。방법；20명새정운동원수궤분위2조（BCAA조화대조조），BCAA조매천보충지련안기산，시간위4주，대조조칙보충안위제。재실험기간，량조운동원도진행상동부하적운동훈련。4주후，재새정측공의상진행모의2km화5km적내력측시，병분별재운동전、운동후즉각화운동후30min취혈측정혈당、병안산화유산。결과：재내력겁한부하운동중，BCAA조적혈당지재운동후즉각명현하강（P 〈0．05），이대조조칙재운동후즉각화운동후30min도명현저우안정시수평（P〈0．05）。BCAA조혈병안산농도재운동후즉각화운동후30min균명현증가（P，〈0．05），이대조조혈병안산농도칙재운동후출현명현적하강（P〈0．05）。BCAA조적혈유산치재운동후명현저우대조조（P〈0．05）。결론：보충BCAA가촉진력갈운동후급회복기당적이생、연완피로발생화촉진운동후피로적소제。
Objective： To investigate the effects of branched-chain amino acid （BCAA） supplementation on metabolism of glucose and gluconeogenesis. Methods： 20 rowing athletes were divided into two groups： the supplemental group or the control group. During the periods of 4 weeks, all athletes were trained at the same relative or at the same intensity of work. After 4 weeks, tests were done on a rowing ergometer, which included performance in exercise tasks of 2kin and 5km. Blood samples were taken prior to and immediately following exercise and at 30min postexercise to determine serum gloucose, alanine, lactate. Resuhs： After 2km and 5km test, Serum glucose value in BCAA group was significant decrease only immediately after exercise, but the value in control group was significant decrease both immediately after exercise and 30min after exercise. Serum alanine values in BCAA group were significant increase both immediately after exercise and 30min after exercise, but the values in control group were significant decrease immediately after exercise, values were higher in the BCAA group than in the control group immediately after exercise. Lactate concentrations increased during exercise for both trials and were higher （P〈0.05） after BCAA supplementation than after placebo administration. Conclusions： BCAA s supplementation can facilitate gluconengenesis and promote fatigue remove after exercise.
