Webborn, A D <br/><br/>
Evaluation of physical activity.  [electronic resource] 

 -  British journal of sports medicine  Apr 1999 
 - 141 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>0306-3674 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Evaluation Studies as Topic<br/>Exercise--physiology<br/>Female<br/>Health Behavior<br/>Humans<br/>Male<br/>Middle Aged<br/>Reproducibility of Results<br/>Time Factors