A push or a pull is a force. Forces can make things move ... We can use pulling forces to stretch and pushing forces to squash. What happens if you drop something? It falls down because its ...

If this is easy, bend your other knee up and the closer you bring it to your chest, the more stretch you're going to feel. You can even grab underneath that leg and push. Pull up and push like this.

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 ...