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Long-Term Exercise Maintenance Via Internet Support

This study has been completed.
Information provided by:
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Identifier:
First received: November 29, 2005
Last updated: February 24, 2010
Last verified: February 2010

November 29, 2005
February 24, 2010
January 2005
March 2008   (Final data collection date for primary outcome measure)
Self-reported body weight [ Time Frame: through2007 ]
  • Self-reported body weight
  • Self-reported exercise activity
Complete list of historical versions of study NCT00260117 on Archive Site
Morbidity [ Time Frame: Through 2007 ]
  • Injuries
  • Morbidity
  • Mortality
Not Provided
Not Provided
Long-Term Exercise Maintenance Via Internet Support
Long-Term Exercise Maintenance Via Internet Support

Each year, a significant portion of men and women who engage in physical activities such as walking or running reduce their activity and by doing so place themselves at greater risk of obesity, heart disease, and diabetes. Our own prospective epidemiological studies of runners and walkers suggest that during 7.6 years of follow-up over 40% have reduced their mileage by half or more. Research suggests that social support, perceived health benefits, resiliency to interruptions in training, and exercise self-efficacy predict successful maintenance. We have found that runners who successfully maintained or increased their running mileage during this follow-up were more likely to have participated in social events such as marathon, half-marathon, or 10km races.

The purpose of this study is to build upon our current Internet-based survey tools ( for tracking physical activity and nutrition on full-function activity and diet logs. The existing software allows participants to visualize their accumulated running and walking mileage on a virtual transcontinental route starting in Yorktown, Virginia and ending in Florence, Oregon. To the existing software, we will add the ability to: 1) choose named or anonymous running and walking partners with similar goals and abilities to travel with (or race against) along the transcontinental trail, 2) communicate with partners to provide mutual support, 3) compete as part of virtual running and walking teams created by the user, and 4) be recognized for completing each state on an awards page (optional). Interest in the site will be maintained by providing regular updates on scientific research on running and walking through our proprietary software. The updates will be created from PubMed abstracts that are made more reader friendly by defining all scientific terms in pop-up balloons.

Participants are refered to a specially designed website to encourage participation
Phase 1
Phase 2
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
  • Obesity
  • Inactivity
Behavioral: Exercise
Referal to a website
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
March 2008
March 2008   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Currently walking or running for exercise Prior participation in the National Runners' or Walkers' Health Studies

Exclusion Criteria:

  • Under 18 years old No internet access
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
United States
DK66738 (completed)
Not Provided
Not Provided
Not Provided
Paul T. Williams, Lawrence Berkeley Laboratory
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Not Provided
Principal Investigator: Paul T Williams, PhD Lawrence Berkeley National Laboratory
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
February 2010

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP