Increased myothermal economy of isometric force generation in compensated cardiac hypertrophy induced by pulmonary artery constriction in the rabbit. A characterization of heat liberation in normal and hypertrophied right ventricular papillary muscles.

because the controls in the earlier series of five muscles liberated 40% more initial heat per gram of muscle than did the present controls. We believe the present values, obtained from a much larger population, to be a better representation of rabbit papillary muscle energetics.