Aerobic Versus Anaerobic Exercise
Sunday, September 21st, 2008The main difference between aerobic and anaerobic exercise is whether oxygen is present to stimulate your metabolism during activity. When you exercise with sufficient oxygen, your muscles can contract continuously without being fatigued. In the absence of oxygen, such exercise leads to muscle fatigue and performance issues. Anaerobic exercise yields a higher long-term caloric burn rate than aerobic exercise. If your goal is to burn as many calories as possible, you should follow an anaerobic routine.
The number of calories you’ll burn while exercising in anaerobic conditions will depend upon your weight, metabolic rate, duration of the workout and its intensity level. Typically, aerobic activity causes your body to burn nearly half of the calories from fat. Anaerobic exercises burn less than 35% of the calories from fat. However, it builds muscle mass which burns calories more efficiently while your body is at rest.
For example, assume that you ride a bike for one hour and travel 20 miles. At 130 pounds, you’ll burn approximately 940 calories. Because this is an aerobic exercise, few calories are burned while your body is at rest. By contrast, experts suggest that each pound of muscle burns nearly 50 calories per day while at rest. That equals over 18,000 calories each year. While aerobic exercise burns calories quickly during activity, anaerobic exercise builds muscle mass which burns more calories over the long term.
If your goal is to burn fat quickly, plan an aerobic regimen. If you would like to build muscle mass and thereby increase your long-term metabolic rate, anaerobic exercise is the solution. For the best of both worlds, do aerobic exercise on one day and anaerobic the next.

