It won't move on its own so you need to help it along by applying a force. A force is always a push, a pull or a twist…so let's try each of them out!

A push or a pull is a force. Forces can make things move ... Does it change shape when you stretch, squash, or twist it?

The best push-pull-leg and upper/lower body workout splits aim to prevent this from happening. Put simply, a push-pull-legs (PPL) routine will maximise time in the gym, while allowing ample time ...