Chin Ups
1.)Stand under a pull-up bar and hold on to it.
2.)Keep your arms straight and simply hang off the bar, keeping your body vertical. Do not rock or sway back and forth.
3.)Do not arch your back. Unless you're taller than the bar, keep your knees straight and together.
4.)Pull your chest up toward the bar by bending your arms. The motion should be smooth. Keep your hands at the same position on the bar.
5.)Pull your body up so that your chin can reach over the pull-up bar.
6.)Pause and then begin lowering yourself back down.
7.)Slowly begin straightening your arms and lowering yourself toward your starting position..
8.)Pause once you've lowered yourself completely back to the hanging position, then repeat the exercise