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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

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.

Condition Intervention Phase
Obesity Inactivity Behavioral: Exercise Phase 1 Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Long-Term Exercise Maintenance Via Internet Support

Resource links provided by NLM:

Further study details as provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK):

Primary Outcome Measures:
  • Self-reported body weight [ Time Frame: through2007 ]

Secondary Outcome Measures:
  • Morbidity [ Time Frame: Through 2007 ]

Estimated Enrollment: 16000
Study Start Date: January 2005
Study Completion Date: March 2008
Primary Completion Date: March 2008 (Final data collection date for primary outcome measure)
Intervention Details:
    Behavioral: Exercise
    Referal to a website
Detailed Description:
Participants are refered to a specially designed website to encourage participation

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

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
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00260117

United States, California
Lawrence Berkeley National Laboratory
Berkeley, California, United States, 94720
Sponsors and Collaborators
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Principal Investigator: Paul T Williams, PhD Lawrence Berkeley National Laboratory
  More Information

Responsible Party: Paul T. Williams, Lawrence Berkeley Laboratory Identifier: NCT00260117     History of Changes
Other Study ID Numbers: DK66738 (completed)
Study First Received: November 29, 2005
Last Updated: February 24, 2010

Keywords provided by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK):
Physical activity
running processed this record on August 18, 2017