Start entering regional contests. Open regional bodybuilding contests are the way to crack into the world of competing. Everyone starts at the local level and gradually builds their way up to the national level. If you're in good shape and want to get experience, try competing and see if you've got what it takes to move on to the next level of competition, and maybe even go pro. For a list of amateur competitions in the United States, click here.
Crunch on exercise ball: Sit on the ball with your feet flat on the floor. Let the ball roll back slowly. Now lie back on the ball until your thighs and torso are parallel with the floor. Cross your arms over your chest and slightly tuck your chin in toward your chest. Contract your abdominals, raising your torso to no more than 45 degrees. For better balance, spread your feet wider apart. To challenge the obliques, make the exercise less stable by moving your feet closer together. Exhale as you contract; inhale as you return to the starting position.
Weight training and bodybuilding nutrition are sciences like anything else. There's biology and biochemistry and physiology, with rules and a base of evidence. Selling supplements, most of which are not needed, has become such a huge business in the commercial weight training and bodybuilding industry that it is almost impossible to know if you are getting an objective evaluation of a bodybuilding diet.
In fact, runners need weight training even more than you may realize. “Strength work accomplishes three big goals for runners,” says Jason Fitzgerald, USATF-certified running coach, founder of Strength Running in Denver, Colorado. “It prevents injuries by strengthening muscles and connective tissues; it helps you run faster by improving neuromuscular coordination and power; and it improves running economy by encouraging coordination and stride efficiency.”