Apex fitness systems certification manual :  the resource for Apex fitness professionals / 
Joylynn Hinger. 
 - 3rd ed. 
 - Thousand Oaks, Calif. :  Apex Fitness Group,  c2001. 
 - 284p. : ill. ; 27 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sports--Physiological aspects.<br/>Athletes--Training of.<br/>Muscle strength.<br/>Coaches (Athletics).