Comparison of Submaximal Cycling and Treadmill Exercise at Similar Work Rates
Abstract
The increased use of both the treadmill and cycle ergometer for exercise testing during respirator wear has escalated the need to compare the physiological response relationships between modes. This study compared circulatory, respiratory, and metabolic responses of submaximal cycling and treadmill exercise of similar work rates in 8 males and 6 females to determine whether the two exercise modes elicited different responses. Gender differences for each exercise mode were also assessed. Subjects cycled or walked for 5 min at each of five incremental external work rates of 60, 90, 120, 150, and 180 W. Measurements of HR, VT, Fb' VE' VO2, and VC02 were obtained for each minute of exercise. Varying differences were observed in the respiratory and metabolic responses within gender groups to exercise between cycling and treadmill exercise of equal work rates with cycling eliciting greater responses at intensities of greater than 120 W. For cycling and treadmill exercise, females had significantly higher HR and Fb than males at intensities greater than 90 W, but metabolic responses were similar between gender groups. These results suggest that both exercise modes are useful for protocols evaluating the physiological effects of mask wear during low levels of physical exertion. However, treadmill exercise seems better suited for testing at higher submaximal work rates. Exercise, Males, Treadmill, Females, Cycle ergometer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1994
- Accession Number
- ADA283430
Entities
People
- David M. Caretti
Organizations
- Edgewood Chemical Biological Center