Effects of a 16-month randomized controlled exercise trial on body weight and composition in young, overweight men and women: The midwest exercise trial

Joseph E. Donnelly, James O. Hill, Dennis J. Jacobsen, Jeffrey Potteiger, Debra K. Sullivan, Susan L. Johnson, Catherine A Heelan, Mary Hise, Paul V. Fennessey, Bakary Sonko, Teresa Sharp, John M. Jakicic, Steven N. Blair, Zung V. Tran, Matthew Mayo, Cheryl Gibson, Richard A. Washburn

Research output: Contribution to journalArticle

301 Citations (Scopus)

Abstract

Background: In light of the current obesity epidemic, treatment models are needed that can prevent weight gain or provide weight loss. We examined the long-term effects of a supervised program of moderate-intensity exercise on body weight and composition in previously sedentary, overweight and moderately obese men and women. We hypothesized that a 16-month program of verified exercise would prevent weight gain or provide weight loss in the exercise group compared with controls. Methods: This was a randomized controlled efficacy trial. Participants were recruited from 2 midwestern universities and their surrounding communities. One hundred thirty-one participants were randomized to exercise or control groups, and 74 completed the intervention and all laboratory testing. Exercise was supervised, and the level of energy expenditure of exercise was measured. Controls remained sedentary. All participants maintained ad libitum diets. Results: Exercise prevented weight gain in women and produced weight loss in men. Men in the exercise group had significant mean ± SD decreases in weight (5.2 ± 4.7 kg), body mass index (calculated as weight in kilograms divided by the square of height in meters) (1. 6 ± 1.4), and fat mass (4.9 ± 4.4 kg) compared with controls. Women in the exercise group maintained baseline weight, body mass index, and fat mass, and controls showed significant mean ± SD increases in body mass index (1.1 ± 2.0), weight (2.9 ± 5.5 kg), and fat mass (2.1 ± 4.8 kg) at 16 months. No significant changes occurred in fat-free mass in either men or women; however, both had significantly reduced visceral fat. Conclusions: Moderate-intensity exercise sustained for 16 months is effective for weight management in young adults.

Original languageEnglish (US)
Pages (from-to)1343-1350
Number of pages8
JournalArchives of Internal Medicine
Volume163
Issue number11
DOIs
StatePublished - Jun 9 2003

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Body Composition
Randomized Controlled Trials
Body Weight
Exercise
Weights and Measures
Fats
Weight Gain
Weight Loss
Body Mass Index
Intra-Abdominal Fat
Energy Metabolism
Young Adult
Obesity
Diet
Control Groups

ASJC Scopus subject areas

  • Internal Medicine

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Effects of a 16-month randomized controlled exercise trial on body weight and composition in young, overweight men and women : The midwest exercise trial. / Donnelly, Joseph E.; Hill, James O.; Jacobsen, Dennis J.; Potteiger, Jeffrey; Sullivan, Debra K.; Johnson, Susan L.; Heelan, Catherine A; Hise, Mary; Fennessey, Paul V.; Sonko, Bakary; Sharp, Teresa; Jakicic, John M.; Blair, Steven N.; Tran, Zung V.; Mayo, Matthew; Gibson, Cheryl; Washburn, Richard A.

In: Archives of Internal Medicine, Vol. 163, No. 11, 09.06.2003, p. 1343-1350.

Research output: Contribution to journalArticle

Donnelly, JE, Hill, JO, Jacobsen, DJ, Potteiger, J, Sullivan, DK, Johnson, SL, Heelan, CA, Hise, M, Fennessey, PV, Sonko, B, Sharp, T, Jakicic, JM, Blair, SN, Tran, ZV, Mayo, M, Gibson, C & Washburn, RA 2003, 'Effects of a 16-month randomized controlled exercise trial on body weight and composition in young, overweight men and women: The midwest exercise trial', Archives of Internal Medicine, vol. 163, no. 11, pp. 1343-1350. https://doi.org/10.1001/archinte.163.11.1343
Donnelly, Joseph E. ; Hill, James O. ; Jacobsen, Dennis J. ; Potteiger, Jeffrey ; Sullivan, Debra K. ; Johnson, Susan L. ; Heelan, Catherine A ; Hise, Mary ; Fennessey, Paul V. ; Sonko, Bakary ; Sharp, Teresa ; Jakicic, John M. ; Blair, Steven N. ; Tran, Zung V. ; Mayo, Matthew ; Gibson, Cheryl ; Washburn, Richard A. / Effects of a 16-month randomized controlled exercise trial on body weight and composition in young, overweight men and women : The midwest exercise trial. In: Archives of Internal Medicine. 2003 ; Vol. 163, No. 11. pp. 1343-1350.
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abstract = "Background: In light of the current obesity epidemic, treatment models are needed that can prevent weight gain or provide weight loss. We examined the long-term effects of a supervised program of moderate-intensity exercise on body weight and composition in previously sedentary, overweight and moderately obese men and women. We hypothesized that a 16-month program of verified exercise would prevent weight gain or provide weight loss in the exercise group compared with controls. Methods: This was a randomized controlled efficacy trial. Participants were recruited from 2 midwestern universities and their surrounding communities. One hundred thirty-one participants were randomized to exercise or control groups, and 74 completed the intervention and all laboratory testing. Exercise was supervised, and the level of energy expenditure of exercise was measured. Controls remained sedentary. All participants maintained ad libitum diets. Results: Exercise prevented weight gain in women and produced weight loss in men. Men in the exercise group had significant mean ± SD decreases in weight (5.2 ± 4.7 kg), body mass index (calculated as weight in kilograms divided by the square of height in meters) (1. 6 ± 1.4), and fat mass (4.9 ± 4.4 kg) compared with controls. Women in the exercise group maintained baseline weight, body mass index, and fat mass, and controls showed significant mean ± SD increases in body mass index (1.1 ± 2.0), weight (2.9 ± 5.5 kg), and fat mass (2.1 ± 4.8 kg) at 16 months. No significant changes occurred in fat-free mass in either men or women; however, both had significantly reduced visceral fat. Conclusions: Moderate-intensity exercise sustained for 16 months is effective for weight management in young adults.",
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AU - Sullivan, Debra K.

AU - Johnson, Susan L.

AU - Heelan, Catherine A

AU - Hise, Mary

AU - Fennessey, Paul V.

AU - Sonko, Bakary

AU - Sharp, Teresa

AU - Jakicic, John M.

AU - Blair, Steven N.

AU - Tran, Zung V.

AU - Mayo, Matthew

AU - Gibson, Cheryl

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N2 - Background: In light of the current obesity epidemic, treatment models are needed that can prevent weight gain or provide weight loss. We examined the long-term effects of a supervised program of moderate-intensity exercise on body weight and composition in previously sedentary, overweight and moderately obese men and women. We hypothesized that a 16-month program of verified exercise would prevent weight gain or provide weight loss in the exercise group compared with controls. Methods: This was a randomized controlled efficacy trial. Participants were recruited from 2 midwestern universities and their surrounding communities. One hundred thirty-one participants were randomized to exercise or control groups, and 74 completed the intervention and all laboratory testing. Exercise was supervised, and the level of energy expenditure of exercise was measured. Controls remained sedentary. All participants maintained ad libitum diets. Results: Exercise prevented weight gain in women and produced weight loss in men. Men in the exercise group had significant mean ± SD decreases in weight (5.2 ± 4.7 kg), body mass index (calculated as weight in kilograms divided by the square of height in meters) (1. 6 ± 1.4), and fat mass (4.9 ± 4.4 kg) compared with controls. Women in the exercise group maintained baseline weight, body mass index, and fat mass, and controls showed significant mean ± SD increases in body mass index (1.1 ± 2.0), weight (2.9 ± 5.5 kg), and fat mass (2.1 ± 4.8 kg) at 16 months. No significant changes occurred in fat-free mass in either men or women; however, both had significantly reduced visceral fat. Conclusions: Moderate-intensity exercise sustained for 16 months is effective for weight management in young adults.

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