M.S. Ed. (Master of Education)
Department of Physical Education
Exercise for women||Exercise--Physiological aspects||Overweight women||Energy metabolism
The purposes of this study were to determine: 1) if individuals can accurately estimate energy expenditure during a typical exercise session, and 2) if the accuracy in estimating energy expenditure is different between overweight and normal weight women. Two groups of women (22-47 yrs) were recruited . One group consisted of 15 normal weight women (BMI<23.7) and the other group consisted of 15 overweight women (BMh27.1). Each subject performed a ?typical? exercise session during which actual energy expenditure was measured. Perceived energy expenditure was determined by a questionnaire. Differences between actual and perceived energy expenditure, in normal weight and overweight women, were analyzed using a 2X2 ANOVA. Statistical analysis indicated that there were no differences between actual and perceived energy expended [958?565 kJ(229?135 kcal) and 1017 kJ (243?166 kcal), respectively]. The mean percent difference in perceived vs. actual expenditure was 17.4?94.4%. There were also no differences in the accuracy of perception between normal weight and overweight women. The mean percent differences for the normal weight and overweight group were 16.0?55.7% and 18.7?122.8%, respectively. Although no significant differences were found between perceived and actual energy expenditure or normal weight and overweight subjects, large standard deviations were observed. Therefore, the results of this study suggest that the degree of accuracy in estimating energy expenditure during exercise varies greatly among individuals. It is hypothesized that this could possibly affect weight loss efforts in some individuals, particularly when energy intake is adjusted to perceived energy expenditure. Key words: energy expenditure, obesity, weight loss, exercise
Strazz, Lisa J., "Perceived vs. actual energy expended during a submaximal exercise bout in normal weight and overweight women" (1996). Graduate Research Theses & Dissertations. 4299.
Northern Illinois University
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