THE EFFECTIVENESS ON PHYSICAL ACTIVITY OF A STAGE OF CHANGE BASED PROGRAM AT THE WORKSITE

van der Beek, A J.1; Proper, K I.1; Hildebrandt, V H.1; Twisk, J W. R.1; van Mechelen, W FACSM1

Medicine & Science in Sports & Exercise: May 2003 - Volume 35 - Issue 5 - p S375
H-13L Free Communication/Poster Exercise Training and Health