Weight Management Using the Internet
Abstract
Background Most weight-loss research targets obese individuals who desire large weight reductions. However, evaluation of weight-gain prevention in overweight individuals is also critical as most Americans become obese as a result of a gradual gain of 1-2 pounds per year over many years.Method This study evaluated the efficacy of an Internet-based program for weight-loss and weight-gain prevention with a two-group, prospective, randomized controlled trial. A military medical research center with a population of 17,000 active-duty military personnel supplied 446 overweight individuals (222 men; 224 women) with a mean age of 34 years and a mean BMI of 29. Recruitment and study participation occurred 2003-2005 and data were analyzed in 2006. Participants were randomly assigned to receive the 6-month behavioral Internet treatment (BIT, n=227) or usual care (n=224). Change in body weight, BMI, percent body fat, and waist circumference; presented as group by time interactions, were measured.Results After 6 months, completers who received BIT lost 1.3 kg while those assigned to usual care gained 0.6 kg (F((df=366))=24.17; I<0.001). Results were similar for the intention-to-treat model. BIT participants also had significant changes in BMI (-0.5 vs +0.2 kg/m(2); F((df=366))=24.58); percent body fat (-0.4 vs +0.6%; F((df=366))=10.45); and waist circumference (-2.1 vs -0.4 cm; F((df=366))=17.09); p<0.001 for all.Conclusions Internet-based weight-management interventions result in small amounts of weight loss, prevent weight gain, and have potential for widespread dissemination as a population health approach.Trial registration NCT00417599.
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After six months of treatment, participants in the computer-based intervention lost more weight than participants in the control intervention (MD -1.5 kg, 95% CI -2.1 to -0.9, P < 0.00001; 511 participants; two trials).
“After six months of treatment, participants in the computer-based intervention lost more weight than participants in the control intervention (MD −1.5 kg (95% CI −2.1 to −0.9); P < 0.00001; 511 participants; two trials; Analysis 1.2) (Figure 4).”
From Interactive computer-based interventions for weight loss or weight maintenance in overweight or obese people (2012) · cites this paper as Hunter 2008
Hunter 2008 stated that the study could not be blinded.
“Hunter 2008 stated that the study could not be blinded.”
From Interactive computer-based interventions for weight loss or weight maintenance in overweight or obese people (2012) · cites this paper as Hunter 2008
Several trials (Bennett 2010; Hunter 2008; Morgan 2009; Morgan 2011; Wylie-Rosett 2001) tested for and demonstrated statistically significant positive associations between amount of computer use and amount of weight loss in the intervention group.
“Several trials (Bennett 2010; Hunter 2008; Morgan 2009; Morgan 2011; Wylie-Rosett 2001) tested for and demonstrated statistically significant positive associations between amount of computer use, measured in a variety of ways, and amount of weight loss in the intervention group.”
From Interactive computer-based interventions for weight loss or weight maintenance in overweight or obese people (2012) · cites this paper as Hunter 2008
In Hunter 2008, at six months, participants in the computer intervention arm improved their fibre intake more than control arm participants, as measured by the dietary fibre score (MD 1.3, 95% CI 0.5 to 2.1; P = 0.001; 399 participants).
“Dietary fibre intake was examined in a single study (Hunter 2008), which found that at six months participants in the computer intervention arm improved their fibre intake more than participants in the control arm, as measured by the dietary fibre score (Block 2000) (MD 1.3 (95% 0.5 to 2.1); P = 0.001; 399 participants; Analysis 1.17).”
From Interactive computer-based interventions for weight loss or weight maintenance in overweight or obese people (2012) · cites this paper as Hunter 2008
In Hunter 2008, at six months, the decrease in percent calories from fat was slightly greater in the computer intervention arm than the control arm (MD −1.1%, 95% CI −2.0 to −0.2; P = 0.02; 399 participants).
“The decrease in percent calories from fat at six months was slightly greater in the computer intervention arm than the control arm of one study (Hunter 2008) (MD −1.1% (95% CI −2.0 to −0.2); P = 0.02; 399 participants; Analysis 1.15).”
From Interactive computer-based interventions for weight loss or weight maintenance in overweight or obese people (2012) · cites this paper as Hunter 2008
The review calculated the correlation coefficient from the weight loss study Hunter 2008 and used it to impute the missing standard deviation for the change from baseline.
“We calculated the correlation coefficient from a weight loss study in this review (Hunter 2008) reporting standard deviations for baseline, endpoint and change values of weight, and used the calculated correlation coefficient to impute the missing standard deviation for the change from baseline”
From Interactive computer-based interventions for weight loss or weight maintenance in overweight or obese people (2012) · cites this paper as Hunter 2008
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- Authors
- Hunter, C. M., Peterson, A. L., Alvarez, L. M., Poston, W. C., Brundige, A. R., Haddock, C. K., Van Brunt, D. L., & Foreyt, J. P.
- Affiliations
- National Institutes of Health (US)
- The University of Texas at San Antonio Health Science Center (US)
- Baylor College of Medicine (US)
- University of Missouri–Kansas City (US)
- Corresponding author
- Hunter, Christine M.
- Venue
- American Journal of Preventive Medicine
- Publisher
- Elsevier BV
- Published
- 2008-02
- Volume
- 34
- Issue
- 2
- Pages
- 119-126
- ISSN
- 0749-3797 (ISSN-L)
- OpenAlex
- W1705513177
- Cited by
- 136
- References
- 50
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 10 · 2020: 5 · 2019: 5 · 2018: 9 · 2017: 2 · 2016: 8 · 2015: 9 · 2014: 16 · 2013: 10 · 2012: 13
- FWCI
- 12.25
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Preventive Medicine (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
- Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
- Health Sciences › Health Professions › Pharmacy › Obesity and Health Practices
- Keywords
- weight management, online intervention, weight loss, weight gain prevention, overweight adults, behavioral interventions, body mass index, body fat percentage, waist circumference, military personnel, obesity prevention
- MeSH terms
- Adult, Female, Humans, Male, Military Personnel, Obesity, Texas, User-Computer Interface, Weight Loss, Internet
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