Respuesta :
Utilizing aerobic breathing (using oxygen again). Several sources can provide this glucose: glucose supply that is still present in muscle cells. food-derived glucose in the gut. the liver's glycogen.
Carbohydrates have a number of important roles in the body, including supplying energy for active muscles, fueling the brain, facilitating fat metabolism, and blocking protein from being used as an energy source. Despite this, the "preferred" source of energy or fuel for bodily functions like muscle contraction is carbohydrates.
During the activity, carbohydrates are a crucial source of energy. It may be the only energy source for the working muscle during brief, intense exercise and may only come from the glycogen reserves within the muscle fibers themselves. Possible sources of energy for exercise and muscle contraction include proteins, lipids, and carbs. About half of the energy used during moderate-intensity exercise comes from glycogen, with the remaining half coming from blood glucose and fatty acids.
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