How is the energy used by an athlete comes from the energy of sunlight?

The energy used by an athlete ultimately originates from sunlight through the process of photosynthesis, where plants convert solar energy into chemical energy stored in carbohydrates. When athletes consume food, they are utilizing these carbohydrates, proteins, and fats derived from plants and animals, which have absorbed sunlight. During physical activity, the body metabolizes these nutrients, converting the stored chemical energy into usable energy for muscle movement. Thus, the energy expended by athletes is a continuation of the energy transformation initiated by sunlight.