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.
Anaerobic means without oxygen. Anaerobic exercise consists of brief intense bursts of physical activity, such as weightlifting and sprints, where oxygen demand surpasses oxygen supply.While aerobic exercise relies on oxygen, anaerobic exercise is fueled by energy stored in your muscles through a process called glycolysis.Glycolysis is a method by which glycogen is broken down into glucose, also known as 'sugar' and is converted into energy.Glycolysis occurs in muscle cells during anaerobic exercise without the use of oxygen in order to produce energy quickly, thus producing lactic acid, which causes your muscles to fatigue.Lactic acid is a by-product of glycolysis and forms when your body breaks down glucose for energy when oxygen is low.lycolysis is a method by which glycogen is broken down into glucose, also known as 'sugar' and is converted into energy. Glycolysis occurs in muscle cells during anaerobic exercise without the use of oxygen in order to produce energy quickly, thus producing lactic acid, which causes your muscles to fatigue.