Eight-month follow-up of physical activity and central adiposity

Results from an internet-delivered randomized control trial intervention

Lucas J. Carr, Roderick Todd Bartee, Chris M. Dorozynski, James F. Broomfield, Marci L. Smith, Derek T. Smith

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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, postinterven- tion, 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-

Original languageEnglish (US)
Pages (from-to)444-455
Number of pages12
JournalJournal of Physical Activity and Health
Volume6
Issue number4
DOIs
StatePublished - Jan 1 2009

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Adiposity
Internet
Triglycerides
Randomized Controlled Trials
Cholesterol

Keywords

  • Adherence
  • Cardiometabolic
  • Overweight
  • Pedometer
  • Physical activity
  • Sedentary

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Eight-month follow-up of physical activity and central adiposity : Results from an internet-delivered randomized control trial intervention. / Carr, Lucas J.; Bartee, Roderick Todd; Dorozynski, Chris M.; Broomfield, James F.; Smith, Marci L.; Smith, Derek T.

In: Journal of Physical Activity and Health, Vol. 6, No. 4, 01.01.2009, p. 444-455.

Research output: Contribution to journalArticle

Carr, Lucas J. ; Bartee, Roderick Todd ; Dorozynski, Chris M. ; Broomfield, James F. ; Smith, Marci L. ; Smith, Derek T. / Eight-month follow-up of physical activity and central adiposity : Results from an internet-delivered randomized control trial intervention. In: Journal of Physical Activity and Health. 2009 ; Vol. 6, No. 4. pp. 444-455.
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