When your lower-leg muscles are in shape ... Keep your abdominal (stomach) muscles pulled in so that you move straight upward, rather than shifting your body forward or backward.

One of the major killers of muscle gains is overworking a particular muscle group and not allowing it enough time to effectively recover. The best push-pull-leg and upper/lower body workout splits ...

Pushing a muscle beyond its comfort zone is perhaps the simplest way to describe muscle hypertrophy, and both the full-body workout and a push-pull-legs (PPL) split can be used to achieve this.