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ur Activities? previous 1. Cardiorespiratory exercise, also known as aerobic exercise, uses oxygen and typically involves using large muscle groups during continuous activities. 2. Your body produces energy under creatine phosphate conditions during the first few seconds of intense exercise. 3. When one of the three phosphates is removed from adenosine triphosphate ADP is formed and energy is released. is stored in the muscles and is broken down to replenish ATP stores. 5. When participating in lowintensity activities over along period of time, the body primarily uses carbohydrates for energy. 6. A small amount of amino acids from protein can be utilized for energy production during endurance events, but their primary role is to promote muscle growth and help with repair. 7. Your body burns fat for energy during every type of exercise that asts longer than 3 sec. Intensity and duration of exercise will affect the percentage of energy that is derived from this source. 8. Endurance athletes may use a training strategy known as muscle glycogen to maximize their body’s glycogen 9, The body’s preferred carbohydrate source during very high intensity exercise for energy is carbohydrate loading