長時間運動後の糖質・タンパク質混合物摂取が日本人陸上長距離選手の回復期の血中エネルギー基質ならびに関連ホルモン動態に及ぼす影響

概要

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We investigated the influence of carbohydrate-protein supplement on concentrations of blood energy substrates and hormones during 2 hours recovery from 30 km outdoor running. Eight male runners completed 30 km running on two separate occasions. Immediately after each run, they ingested a solution containing carbohydrate (1.5 g/kg body weight) or carbohydrate (1.5 g/kg) + protein (0.5 g/kg) . Blood samples were collected before and immediately after running and at 1 and 2 h during the recovery period to determine the concentrations of blood energy substrates (serum glucose and free fatty acids (FFA) ) , blood lactate and hormones (plasma insulin, adrenaline and noradrenaline) . Although there were no differences in the concentrations of glucose, FFA, blood lactate, or adrenaline and noradrenaline between the two treatments, the plasma insulin level of carbohydrate-protein treatment was significantly higher than that of carbohydrate treatment (28.0 ± 4.0 vs. 16.9 ± 2.4 μ U/ml, p<0.05) at 1 h after running. These results indicate that carbohydrate-protein treatment after running can increase insulin secretion compared with carbohydrate treatment.
日本運動生理学会の論文
2002-02-28