운동영양학: 채식인의 BCAAs 섭취 후 지구성 운동시 나타나는 혈중 에너지 대사 물질의 변화 = The effect of branched-chain amino acid supplementation on the products of energy metabolism during prolong exercise in vegetarians

다국어 초록 (Multilingual Abstract)

The purpose of the study was to investigate the effects of branched-chain amino acids supplementation on plasma lactate, glucose, FFA, ammonia and BCAAs concentration during prolonged exercise in vegetarians. 14 male subjects (Omnivore group: 7, Vegetarian group: 7) volunteered to participate in this study. Each subject performed two experimental trials (placebo: sports beverage and BCAAs: 76.8㎎/㎏ BW). And they performed a sub-maximal exercise for 60min at 60% of their VO_2max on treadmill. Blood lactate concentration increased slightly during the early phase of exercise in both groups.
Blood lactate concentration in vegetarian group was lower than omnivore significantly and positive effects of BCAAs supplementation were observed in two groups during exercise and recovery. The interesting changes of plasma glucose, FFA, and BCAAs concentration was not appearance. Plasma ammonia level of vegetarian group was lower as compared to omnivore group and at rest, during exercise, and recovery phase. Furthermore, in the omnivore group, BCAAs decrease the ammonia concentration interestingly.
In conclusion, lacto-ovo-vegetarian diet custom can influence on blood lactate concentration, and lactate recovery rate during prolonged exercise and recovery phase. Furthermore, BCAAs supplementation had significantly effect on blood lactate concentration in both groups and omnivore group respectively. However, more consistent study will be necessary for elucidating BCAAs supplementation effects during prolonged exercise on other blood parameters.