Eight-Month Follow-Up of Physical Activity and Central Adiposity: Results From an Internet-Delivered Randomized Control Trial Intervention
Open accessAbstract
Background: Less than half of U.S. adults engage in the recommended amount of physical activity (PA). Internet-delivered PA programs increase short-term PA but long-term adherence is largely equivocal. Purpose: To determine whether increased PA following the 16-week internet-delivered Active Living Every Day (ALED-I) program is maintained 8 months later in sedentary and overweight rural adults. Methods: In our previous randomized controlled trial (N = 32; 18 intent-to-treat controls, 14 ALED-I interventions), the ALED-I group increased PA (+1384 steps/day; E.S. = 0.95) and reduced central adiposity. Nine original intervention participants and ten delayed intent-to-treat control participants completed ALED-I and an 8-month follow-up. Pedometer-measured PA, anthropometric variables, and cardiometabolic disease risk factors were assessed at baseline, postintervention, and at 8 months. Results: Control crossover participants increased PA (+1337 steps/day; P = .04). Eight months following completion of ALED-I (N = 19), PA levels relapsed (–1340 steps/day) and were similar to levels before the intervention (6850 ± 471 steps/day vs. 6755 ± 543 steps/day; P = .89). Total cholesterol and triglycerides improved, –9.9% and –18.2%, respectively, and reductions in central adiposity were maintained (97.1 ± 2.2 cm vs. 97.2 ± 2.2 cm; P = .66). Conclusions: The ALED-I intervention was efficacious in the short-term but did not produce longer-term adherence to PA. Future theory- based internet-delivered interventions that produce habituation of increased PA are warranted. Study conducted in Laramie, WY from January 2007 through November 2007.
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In studies targeting physical activity or depression, the number of activities completed was not found to correlate with outcomes.
“In studies targeting physical activity [33,34] or depression [45], the number of activities completed was not found to correlate with outcomes.”
From A Systematic Review of the Impact of Adherence on the Effectiveness of e-Therapies (2011) · cites this paper as [34]
Logins were found to be positively associated with outcome in studies targeting food and vegetable consumption, physical activity, and weight management.
“Using the previously described rating system, logins were found to be positively associated with outcome in studies targeting food and vegetable consumption [32], physical activity [33-37], and weight management [38-40].”
From A Systematic Review of the Impact of Adherence on the Effectiveness of e-Therapies (2011) · cites this paper as [34]
Several studies categorized participants into adherent or not, or usage categories such as low, medium, and high, while others used continuous variables or a combination of these.
“Several studies categorized participants into adherent or not [49,54,57,75], or usage categories such as low, medium, and high [60], while others used continuous variables [23,24,33-36,38-41,43-45,50-52,55,56,58,59,61,76] or a combination of these [42,46,53,64-66,77].”
From A Systematic Review of the Impact of Adherence on the Effectiveness of e-Therapies (2011) · cites this paper as [34]
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- Authors
- Carr, L. J., Bartee, R. T., Dorozynski, C. M., Broomfield, J. F., Smith, M. L., & Smith, D. T.
- Affiliations
- University of Wyoming (US)
- Venue
- Journal of Physical Activity and Health
- Publisher
- Human Kinetics
- Published
- 2009-07
- Volume
- 6
- Issue
- 4
- Pages
- 444-455
- ISSN
- 1543-3080 (ISSN-L)
- 1543-5474
- PMC
- PMC2820723
- OpenAlex
- W2164550132
- Cited by
- 28
- References
- 46
- Citations by year
- 2026: 1 · 2025: 1 · 2023: 3 · 2021: 3 · 2020: 1 · 2019: 1 · 2018: 1 · 2016: 1 · 2015: 1 · 2014: 3 · 2013: 4 · 2012: 2
- FWCI
- 1.77
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Physical Activity and Health (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (2p20rr016474-09)
- National Center for Research Resources (P20-RR-016474)
- Topics
- Health Sciences › Medicine › Physiology › Physical Activity and Health
- Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
- Keywords
- physical activity, abdominal obesity, online intervention, sedentary adults, overweight adults, rural adults, pedometer-measured steps, long-term adherence, relapse, cardiometabolic risk factors, cholesterol, triglycerides, habituation
- MeSH terms
- Adult, Body Weights and Measures, Female, Follow-Up Studies, Humans, Male, Middle Aged, Health Behavior, Exercise, Body Mass Index, Cross-Over Studies, Monitoring, Ambulatory, Internet, Adiposity
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