David V Cody

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PURPOSE There have been conflicting reports of muscle fiber type changes in patients with peripheral arterial disease (PAD). The purpose of this study was to examine the myosin heavy chain (MHC) expression as well as histochemical changes in the gastrocnemius muscle in patients with symptomatic PAD. METHODS Needle biopsy specimens were obtained from the(More)
The purpose of this study was to investigate the effects of a progressive resistance training program on myosin heavy chain isoform expression, fiber type, and capillarization in patients with symptomatic peripheral arterial disease. Patients were randomized to either a training group (n = 11, mean +/- SD, 70 +/- 6 years, 4 men, 7 women) or a control group(More)
The Rating of Perceived Exertion (RPE) has been used as a supplementary tool for prescription of exercise training intensity for healthy and special populations. Despite the wide use of the RPE scale, there is an inconsistency regarding the accuracy of that scale for chronic heart failure (CHF) patients treated with beta-blockers. The study examined the(More)
The relative prognostic significance of ventricular tachycardia and ventricular fibrillation inducible at programmed stimulation within 1 month of acute myocardial infarction was compared in a prospective study of 403 clinically well survivors of transmural infarction who were 65 years old or younger. The prognostic significance of delayed potentials on the(More)
The ability of class I and class II antiarrhythmic drugs to either abolish delayed potentials or modify their timing was investigated in 39 patients with spontaneous ventricular tachycardia (VT) after myocardial infarction. Before the study all patients had delayed potentials on the signal-averaged electrocardiogram and inducible VT with programmed(More)
We have devised a simple method for identifying predisposition to spontaneous sustained ventricular fibrillation (VF) and tachycardia (VT). A standardized protocol of programmed stimulation was applied to 111 control subjects without ventricular disease and with no history of VF or VT (Group I) and to 27 patients with previous myocardial infarction and(More)
Survivors of acute myocardial infarction who had inducible sustained ventricular tachyarrhythmias at programmed stimulation 1-4 weeks after infarction were recruited to a randomized pilot trial of Class I antiarrhythmic drugs, in an attempt to determine whether their mortality and risk of spontaneous ventricular tachycardia and fibrillation could be reduced(More)
BACKGROUND Resistance training increases the skeletal muscle strength and functional ability of chronic heart failure patients. However, there is limited data regarding the effect of resistance training on the hemodynamic responses and peak oxygen consumption (peak VO(2)) of chronic heart failure patients treated with beta-blocker. This study examined the(More)
INTRODUCTION Resistance training (RT) has been shown to improve chronic heart failure (CHF) patients' functional ability and quality of life. Despite these benefits RT has not always been recommend as a form of exercise principally because of a concern for acceleration of the left ventricular (LV) remodeling process. This study investigated the effects of 8(More)