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.
A Luis Alonso, NASM Elite Trainer, Fitness, answered. Aerobic means With the presence of oxygen. The term was made popular mainly by Dr. Kenneth Cooper, whose research in cardiovascular and exercise science showed that the human body could use several different energy pathways to efficiently perform exercise.he term was made popular mainly by Dr. Kenneth Cooper, whose research in cardiovascular and exercise science showed that the human body could use several different energy pathways to efficiently perform exercise.