PEPAB Norm Development (PEPABNRM)
Abstract
To evaluate physical performance under experimental or treatment conditions, exercise test are routinely administered. We developed a tool for predicting the treadmill speed at which to run subjects in order to elicit a desired percentage of their maximal aerobic capacity. We generated, tested and refined a pair of regression equations: one for submaximal aerobic exercise, the other for high-intensity anaerobic exercise. Within the limitations of using linear equations to elicit physiologic responses that are sometimes curvilinear, the equations are useful to researchers. An Actigraph activity monitor was worn while performing a series of sedentary and physically challenging activities; heart rate and oxygen consumption (Vo2) were also monitored. Actigraph counts were correlated with V02 and heart rate for the physically challenging tasks r= 0.729, P < 0.001; r = 0.709, P < 0.001, respectively). We suggest that the Actigraph could be used to grossly estimate energy expenditure because of the relation of oxygen consumption to expenditure (5 kilocalories are expended for each liter of oxygen consumed). Lastly, we developed a computerized physical activity questionnaire (PAQ) to quantify average daily energy expenditure. The PAQ quantifies work, sleep and leisure time-activities over a one-week and/or one-year period. Although dependent on the accuracy of subject recall, the PAQ has proven to be a useful tool for estimating energy expenditure in over 50 subjects. Used in conjunction with the Actigraph, fairly accurate estimations of physical activity and energy expenditure could be made outside of the laboratory.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 09, 1991
- Accession Number
- ADA249908
Entities
People
- Leslie C. Montgomery
- Paticia A. Deuster
Organizations
- Uniformed Services University of the Health Sciences