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.
The word aerobics is defined as with oxygen. When an individual is performing an aerobic activity their body uses oxygen to produce the energy required to actually perform the exercise. One of the main physiological differences between aerobic and anaerobic exercise is how the metabolic process occurs.