The purpose of this study is to examine the effects of a 12-week cardiac rehabilitation exercise program on systemic inflammation and CVD risk in individuals with RA. The specific objectives of the study are: 1) to determine whether it is feasible for RA patients to complete a 12-week high intensity CR exercise program, 2) examine the effects of a 12-week standardized CR exercise program on systemic markers of inflammation in individuals with RA, 3) to examine the effects of a 12-week standardized CR exercise program on CVD risk in individuals with RA and 4) to characterize the effects a 12-week standardized CR exercise program on the severity of the patient's RA and their functional ability.