Mauna Kea III: Metabolic Effects of Dietary Carbohydrate Supplementation During Exercise at 4100 M Altitude.

摘要: Abstract : Twenty-nine male soldiers were divided into 3 groups to study the effects of exercise and carbohydrate supplementation on physical performance metabolism at high altitude. All provided a standard military field ration (Meal, Ready-to-Eat) containing 45% (CHO) was consumed ad libitum during 4 consecutive days residence an altitude 4100 M. Two (EX EX + CHO) exercised while by running walking about 75% maximum heart rate 2h/day. The third group (SED) remained sedentary One permitted consume sweetened beverages as supplement (250-350 g CHO/day) diet. other two similar non-caloric sweetener also basis. Baseline measurements food consumption, aerobic capacity, blood urine metabolites recorded for all 2 activity sea level prior rapid ascent (4100 M). Mean daily caloric intakes 1513 kcal (SED), 1787 (EX), 2325 CHO). EC CHO average 404 CHO/ day compared 187 159 CHO/day SED respectively. displayed higher exercising respiratory exchanged ratio (0.81 or - 0.01 vs 0.77 0.01), lower beta hydroxybutyric acid averaged 12.5% greater voluntary miles run over course study. results confirm extend previous studies suggesting that is beneficial strenuous