Radiographic Heart Volume, Stroke Volume and Exercise Cardiac Frequency: Relationship to Body Composition and Other Factors in Healthy Adult Males

Publisher Website
Google Scholar
Abstract
Among 288 healthy male workers in heavy industry the radiographic heart volume was related to the fat-free mass and the percentage body fat which between them explained 27% of the variance. Exercise was performed on a treadmill using a belt speed of 80 m/min (3 mph) and an incline which was increased progressively to 14% when the O2 uptake was on average 61% of the maximum for these subjects. The exercise cardiac output was related to the uptake of O2, the fat-free mass and the ambient temperature; these factors accounted for 52% of the variance. The exercise stroke volume was related to the heart volume, the fat-free mass, the thigh muscle width, the ambient temperature, the Harvard Pack Index and other measurements which between them accounted for 42% of the variance. The exercise cardiac frequency was correlated negatively with the heart volume, the fat-free mass, age and the Harvard Pack Index. The variates between them described 41% of the variance. The findings provide reference values for heart volume, stroke volume and exercise cardiac frequency in similar subjects.

This publication has 1 reference indexed in Scilit: