VARIABILITY OF RESPIRATORY AND CIRCULATORY PERFORMANCE DURING STANDARDIZED EXERCISE 1

Abstract

The data from 35 normals were analyzed statistically to determine the range of variability of the several measurements during rest, moderate exercise and recovery. There was no significant difference between values for men and women. The primary measurements of heart rate., ventilation volume and volumes percent oxygen absorbed from room air showed low coeffs. of variability, the last showing the least. The avg. coeff. of variability for the several factors was about 12%. Analysis of data of multiple tests on the same individual[long dash]either normal subjects or patients with clinical disease[long dash]showed avg. coeffs. of variability of about 5% and 10%, respectively, for the primary measurement.