From the Man Himself- Wisdom from Tony Horton

Strength Training: More than Just Getting Ripped

We know that strength training is an important part of a Power 90^® or P90X^® routine. Why? It makes you stronger, and I'm not just talking about the shape of your biceps or the size of your pecs. Resistance training strengthens bones, ligaments, and tendons, as well as your muscles. Altogether, a well-oiled internal machine improves your balance and power while shortening your recovery time and risk of injury.

The difference between a full-spectrum workout like Power 90 or P90X and an all-aerobic workout regimen is huge. People who only do aerobic routines run the risk of developing overuse injuries, and their fitness is imbalanced. Runners, for example, work their calves and hamstrings hard, but the quads and upper body get off easy. It's important to strengthen all the major muscle groups for overall fitness balance and to reduce injury risks. No matter how careful they are (varying their workout intensity or the terrain they run on, wearing good shoes, etc.), runners who do not balance their regimens with strength training are likely to suffer from some kind of running-related injury sooner or later.

Strength and power start at the core. Your core strength, which comes from your abdomen, back, and trunk, is the center for most of your power, agility, and balance. That's why we bust out the crunches, lunges, and squats. Strengthen your core and you've got a lot more "oomph" to rock out the outer, sport-specific muscles. Another major benefit to muscle training is creating muscle density. The denser your muscles, the higher your metabolism—and you know what that means. You can consume more calories without gaining weight. Now that's incentive!

Peace,
Tony H.