Division 1 football players are elite athletes. Even the most marginal major college football player on the worst team in the country is still a great athlete. To prepare for a season that can last 14 games over six months in some cases, D1 players must train year-round.

Muscle mass is the main goal of weightlifting and bodybuilding. Muscles not only provide strength and power, but can be a visible manifestation of health and an essential part of a well-toned physique when not obscured by a layer of fat.

Cellulitis is a bacterial infection usually caused by the streptococcal germ, according to the National Institute of Allergy and Infectious Diseases. Cellulitis affects the subcutis, the deepest layer of the skin, and typically manifests as the result of streptococcus entering through a scratch or cut.

When you target a muscle group during weight training, you're priming those muscles to grow by tearing down muscle fibers. The rest period between training sessions gives your muscles a chance to heal and grow.

Lifting weights is an effective way to transform your body and improve your physical conditioning and strength. The repetitive action of certain lifts can cause problems with your wrists over time.

One urban legend argues that any form of strength training can stunt a young person's growth, and therefore should be avoided until young people are are full grown.

The only way to get bigger muscles is to use resistance training, but, with the numerous exercises available, you may not know which exercises you can do at home to increase the size of your chest.

Success in boxing requires a combination of muscle, power, speed, quickness, endurance and coordination. The more muscle mass you have, the more potential force you can produce with every punch.

You lift heavy weight during bodybuilding workouts to build muscle mass. Orthopedia.com reports that the most traumatic pectoral tears occur in weight lifters or bodybuilders between ages 20 and 40 from doing eccentric pectoral contraction exercises like the bench press.

How many parts of your body you should work out in a day depends on your workout goals, the kind of exercise you are doing, and even your daily schedule.

Whether it's off-season, an injury, burnout or deployment, sometimes your weight training regimen falls prey to circumstances beyond your control. While you may welcome a break from grueling hours at the gym, be prepared to lose strength and size as well.

Building lean muscle mass in any area of the body can be tough to do without using weights, which challenge muscles to fatigue and help achieve definition in physique.