Exercise Physiology and Nutrition
At rest and during normal activities, fats provide 80-90% of the energy source; carbohydrates provide 5-18%; and protein provides 2-5%.
During low to moderate intensity aerobic activity (long duration, steady speed, also known as endurance exercise), fat is a significant energy source.
Exercise above 60-65% of maximal oxygen uptake, carbohydrate is needed as a fuel source.
During prolonged exercise, there is a reliance on carbohydrate to provide pyruvate for continued fat oxidation.
Muscle glycogen (the storage form of carbohydrate in the muscle) is depleted in 2-3 hours of continuous exercise at 60-80% of oxygen uptake.
1 comment:
At first glance, this seems to imply that even moderate exercise will help me to lose weight. I try to do some amount, about 30 minutes, of not too intense walking several times a week. So far I haven't lost even one pound, but haven't gained either.
Post a Comment