If you want great legs, you need to train them all around, not just the front of the thighs. Use multiple joints whenever possible. And running stairs is one of the best things you can possibly do. It has little to no impact on your joints, and you're working your glutes, hamstrings, and quads all at the same time.

We focus way too much on the front of our midsection, which, in the process, over-strengthens and draws the torso forward so you end up with shorter-looking abs. Focus on lengthening by working your lower back instead. This will give your midsection a full overhaul.

When the biceps become too strong, it brings the shoulders forward and makes for a gorilla-like posture.

Harley Pasternak Quotes