スポーツ活動時における糖・電解質飲料の摂取が食行動に及ぼす影響

Abstract

To examine the effects of carbohydrate-electrolyte beverages ingested during softball practice lasting4 h on acute post-exercise blood characteristics and feeding behavior, two investigations were conducted inthe summer. In investigation A, 27 female players ingested 4% carbohydrate beverage (4%CHO) or noncaloricbeverage (Non-CHO) during exercise for 1 month. Energy and carbohydrate intake from food in the4%CHO group was lower than that in the Non-CHO group. In investigation B, 29 female players were divided into three groups. Each group ingested 7% carbohydrate beverage (7%CHO), 4%CHO, or Non-CHO duringexercise. Blood glucose levels remained unchanged during exercise in all three groups, but plasma free fattyacid levels increased significantly after exercise in the Non-CHO group. These results suggest that ingestion ofcarbohydrate-electrolyte beverages during prolonged exercise under hot conditions affects feeding behavior ofplayers.