The purpose of this thesis was to monitor body composition and energy expenditure changes during weight loss in subjects encouraged to maintain a diet equal to 90% of resting energy expenditure (REE). Over six months, 69 female subjects had REE measured at baseline and weeks 13 and 25 with fortnightly body composition measurements. Subjects lost significant total body mass (17.2 lb) and fat mass (16.7 lb) (p≤.000). Fat-free mass remained stable during the six month period. REE was significantly higher at baseline (1701.1 kcal) than weeks 13 (1576.3 kcal) and 25 (1579.4) (p≤.000); REE at weeks 13 and 25 were similar (p≥.05). Predicted REE at weeks 13 (1671.3 ± 254.7 kcal) and 25 (1658.5 ± 252.4 kcal), compared to measured REE, was significantly lower, 1576.3 kcal and 1579.4 kcal, respectively (p≤.000). Results of this study illustrate that individuals can lose significant amounts of total body mass while preserving fat-free mass and that during active weight loss, there is a metabolic adaptation to reduced caloric intake. / Department of Family and Consumer Sciences
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:123456789/193333 |
| Date | 24 July 2010 |
| Creators | Thomas, Adrienne S. |
| Contributors | Chezem, Jo Carol |
| Source Sets | Ball State University |
| Detected Language | English |
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