Validation of the maximal MET prediction equations on the Schwinn Air-Dyne
Abstract
The purpose of this study was to determine the validity of the 2redicted
maximal MET equations on the Schwinn Air-Dyne bicycle ergometer for a
population of females between the ages of 19 and 29 years. Twenty-five
female Ss volunteered to take part in the study. Twenty-one of the 25
Ss reached a V02 max (l/min) that was defined by 1 of 2 criteria for a
"true" maximal test. Predicted maximal METs were compared to measured
n~aximal METs obtained while exercising on the Schwinn Air-Dyne. Two
heart rates were obtained during an 8-minute submaximal test. Predicted
maximal METs were determined for each subject in an equation that used
an age predicted maximal heart rate and the two submaximal heart rates.
The "true" VO, max test was used to determine measured maximal METs. A
Pearson product-moment correlation and paired t-test revealed a high
positive correlation (r - .88) and a significant difference between the
means of predicted maximal METs and measured maximal METs (p < .05).
The difference between the means of predicted and measured maximal METs
was 4.6%. Predicted maximal METs underestimated measured maximal METs
by 0.56 METs. The predicted maximal MET equations were therefore
considered to be valid for determining maximal METs for purposes other
than research.
Subject
Schwinn Air-Dyne bicycle ergometer
Exercise tests - Validity
Cycling for women - Physiological aspects
Aerobic exercises - Physiological aspects