Fitness: Exercises, Nutrition Tips, and Tools to Get Fit

InteliHealth 's "Healthy Lifestyle/Fitness" section has useful introductory resources to physical fitness, like an FAQ section, an "ask the expert feature," introductions to how muscles work and an intro to injury prevention. Medical information here is reviewed by Harvard Medical School.

The Mayo Clinic 's Fitness Center is a comprehensive information resource. Develop your fitness awareness by learning about the benefits of exercise and the proper training techniques and methods. The site has tutorials on stretching, running, and weight training, and offers advice on overcoming exercise barriers. You'll also find an A-Z index of sports injuries.

WebMD 's fitness articles address a variety of exercise concerns, myths, and theories, and provide doctor-verified advice and insight. If you're experiencing workout-related pain, you'll find pertinent information in one of over 1,000 fitness-related articles in the WebMD archive. Use the search function to wade through it if you have a specific concern. Use the Metabolism Calculator, or learn what may be bothering you with the Symptom Checker.

The American College of Sports Medicine has free brochures that offer authoritative information on a variety of topics related to sports medicine and exercise science. They're an excellent way to introduce yourself to topics like "selecting and effectively using free weights," "selecting and effectively using a treadmill," and "exercise your way to lower blood pressure." The list of brochures available is at the bottom of the page. Since they're PDF files you'll have to download them before you read them.