JELINEK, V. MICHAEL. Exercise induced arrhythmias:their im plications for cardiac rehabilitation programs.Med. Sci. Sports Exercise. Vol. 12, No. 4, pp. 223–230, 1980. The exercise induced frequent ventricular premature beat (VPB) usually indicates the presence of frequent and complex forms of VPB on 24-hr ambulatory monitoring. While it is commonly associated with coronary heart disease (CHD) with abnormalities of left ventricular contraction (LVC) it is not specific for this condition. In the context of CHD with LVC, frequent or complex VPB substantially increase the risk of sudden cardiac death. No therapy is known to reliably suppress VPB and thereby prevent sudden death.