Plowman, Sharon A.
M.S. Ed. (Master of Education)
Department of Physical Education
It was the purpose of this study to describe the metabolic aftereffects of exercise on recovery oxygen consumption and caloric cost between trained and untrained females. Fourteen female students, 18 to 28 years of age, who were enrolled at Northern Illinois University, were divided into two groups, trained (N = 7) and untrained (N = 7). The classification of training state was established by means of an activity questionnaire and a maximal aerobic power test. The trained group had an average max V̇O₂ value of 54.97 ml•kgˉ¹.minˉ¹ (±4.88), and the untrained group had a value of 42.38 ml•kgˉ¹.minˉ¹ (±3.28) (p <.05). All subjects were pretested for percent body fat. No obese individuals (greater than 30% body fat) were selected as subjects. The trained group averaged 20.15% body fat; the untrained group averaged 25.10% body fat (p >.05). There were two experimental tests: (a) a 30-minute exercise bout on a bicycle ergometer at approximately 70% max V̇O₂; and (b) a 30-minute period of quiet sitting on the bicycle ergometer. Immediately following both experimental tests the subject moved to a chair next to the ergometer where expired gases were collected for 1 hour. The day prior to experimental testing all subjects consumed three standardized meals. Both tests were administered exactly 1 week apart and at identical times of the day. The Wilcoxon Sign-Rank Test was used to compare gross V̇O₂ consumption ml•kgˉ¹.hrˉ¹ ) and gross caloric expenditure (kcal•hrˉ¹) between the exercise and nonexercise situations. Gross V̇O₂ consumption (397.40 ml•kgˉ¹.hrˉ¹) and gross caloric expenditure (108.01 ml•kgˉ¹.hrˉ¹) after exercise were significantly higher than gross V̇O₂ consumption (320.34 ml•kgˉ¹.hrˉ¹) and gross caloric expenditure (88.30 kcal•hrˉ¹) after nonexercise (p <. 001). The Mann-Whitney U-Test was used to compare the results of net V̇O₂ consumption and net caloric expenditure between the trained and untrained groups. The trained group had an average V̇O₂ consumption of 85.38 ml•kgˉ¹.hrˉ¹ (±59.13), and the untrained, 68.68 ml•kgˉ¹.hrˉ¹ (±39.98) (p >.05). Net caloric expenditure for the trained group was 20.77 kcal•hrˉ¹ (±13.03) and 19.13 kcal•hrˉ¹ (±13.36) for the untrained group (p >.05). It was concluded that there was an excess oxygen consumption and caloric expenditure for 1 hour after exercise, and that this difference was independent of training state in college aged females.
Fehling, Patricia C., "A comparison of the caloric cost of recovery from submaximal exercise in trained and untrained females" (1984). Graduate Research Theses & Dissertations. 191.
viii, 71 pages
Northern Illinois University
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