Squat

It's true. The squat is a powerful body building exercise. You'll see almost all bodybuilders are using it and for a reason - it works!

However, a word of caution here. If you have knee problems, don't do it. There is a lot of stress placed on the knees. You might consider doing a partial squat and not going down to a full squat finish. But if you're knees hurt, I would pass on this exercise.

If you do a squat, you want to make sure your knees do not extend beyond your toes. That is an important exercise tip and you should follow that advice if doing lunges as well.