Work and Heart Disease
I. A Physiologic Study in the Factory
Sixty-two factory workers, 36 with heart disease, and 26 healthy control subjects, were studied during a typical day's work. Observations of energy expenditure, pulmonary ventilation, pulse rate and electrocardiogram are reported and analyzed in relation to the type of work, the influence of heart disease, and possible objective evidence of fatigue.
- © 1958 American Heart Association, Inc.