Weight lifting builds muscle, which increases overall body strength, tone, and balance. Muscles burn calories more efficiently than fat and other body tissues. Lifting weights is an effective way to burn calories because increasing muscle mass may help to increase your metabolic rate.

If proper technique is followed, most people of any age can safely lift weights. It is important, however, to check with your doctor before you start to train with weights. Also, consult an experienced personal trainer or coach prior to beginning a weight lifting program. This can help prevent injuries and the loss of muscle strength and endurance that occurs with bed rest and inactivity.

Those recovering from heart attacks can benefit greatly from supervised cardiac rehabilitation programs.

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Lakka T, Laaksonen DE. Physical activity in prevention and treatment of the metabolic syndrome. Appl Physiol Nutr Metab. 2007; 32(1):76-88.

Williams MA, Haskell WL, Ades PA, et al. Resistance exercise in individuals with and without cardiovascular disease: 2007 update. A Scientific Statement from the American Heart Association Council on Clinical Cardiology and Council on Nutrition, Physical Activity, and Metabolism. Circulation. 2007 [e-pub July 16, 2007.]

American Association of Cardiovascular and Pulmonary Rehabilitation. Guidelines for Cardiac Rehabilitation and Secondary Prevention Programs. 4th ed. Champaign, Ill: Human Kinetics; 2004.