Planning a first-time trip to the Phoenix area and would like advice about the best time to visit with regard to the weather. I want to enjoy sitting by the pool, swimming, etc, as well as do some hiking and typical tourist things. However, I would prefer to avoid the extreme heat. Hide.
Medical Definition of aerobics. 1  1singular or plural in construction : a system of physical conditioning involving exercises (as running, walking, swimming, or calisthenics) strenuously performed so as to cause marked temporary increase in respiration and heart rate. 2  2: aerobic exercises.
Aerobic metabolism is a physiological process that requires oxygen to be available in order to use carbohydrate, fat, or protein for energy production. When oxygen is not available, only carbohydrate can be used for energy, this is anaerobic metabolism.You use primarily aerobic metabolism for energy when you are working at a low to moderate pace during exercise. Walking briskly, cycling at approximately 12 mph, or a light to moderate jog would be good examples.hen oxygen is not available, only carbohydrate can be used for energy, this is anaerobic metabolism. You use primarily aerobic metabolism for energy when you are working at a low to moderate pace during exercise.