Rahl, Riva L.,  1973- <br/><br/>
Physical activity and health guidelines :  recommendations for various ages, fitness levels, and conditions from 57 authoritative sources / 
Riva L. Rahl 
 - Champaign, IL :  Human Kinetics,  2010 
 - xi, 355 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780736079433 (hbk.) 0736079432 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exercise<br/>Physical fitness<br/>Health<br/>Physical Fitness--Guideline<br/>Exercise Therapy--Guideline