@inbook{6152515,
author={Nancy Hamilton and Wendi Weimar and Kathryn Luttgens},
title={Chapter 22. Impact},
booktitle={Kinesiology: Scientific Basis of Human Motion, 11e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2008},
url={accessphysiotherapy.mhmedical.com/content.aspx?aid=6152515}
}