A quantitative survey to measure energy expenditure in midlife women.

The Taylor Leisure Time Physical Activity Questionnaire and the Tecumseh Occupational Physical Activity Questionnaire were modified to measure energy expenditure in midlife women. A three-dimensional measure of female physical activity resulted which reflected leisure, occupational, and household activities. Total daily energy expenditure for the specific activities was calculated using established metabolic units and reported time spent performing the activities. Test-retest reliability was evaluated at two weeks for 15% (n = 59) of the sample of 375 midlife women. There was high agreement on participation in the various activities, but low agreement on the time spent doing the activities. Cardiorespiratory fitness, established with a Monarch bicycle ergometer, was used to test the validity of the energy expenditure measure. Correlations were significant between cardiorespiratory fitness and both leisure activity and household activity, but not between cardiorespiratory fitness and occupational activity.