Looking for a particularly evil bodyweight exercise? Try the Pull-A-Burp, a superbly cruel combination of a Pull-up and a Burpee. According to Kelly Mills :
Do a push-up, jump to your feet, squat nice and low and spring up to the bar and pull yourself up. Then drop down, and jump down to a push-up again. Sound hard? Now do ten.
Love it.
This is definitely on my list of things to make for the home gym. Inexpensive, comparatively simple to put together and multi-purpose. The Home-made Medicine Ball.

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I love this site - this is a great way to find out how your body works.
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