Interactive Technologies to Increase Exercise Behavior

This study has been completed.
Sponsor:
Collaborators:
University of Pittsburgh
Brown University
Information provided by:
The Miriam Hospital
ClinicalTrials.gov Identifier:
NCT00200317
First received: September 13, 2005
Last updated: April 27, 2007
Last verified: September 2005

September 13, 2005
April 27, 2007
February 2003
Not Provided
Minutes of physical activity per week based on 7-Day Physical Activity Recall Interview.
Same as current
Complete list of historical versions of study NCT00200317 on ClinicalTrials.gov Archive Site
  • Minutes of physical activity per week based on objective physical activity monitor (ActiGraph);
  • Minutes of walking on a treadmill; and Estimated Vo2 on treadmill test.
  • 1) Minutes of physical activity per week based on objective physical activity monitor (ActiGraph).
  • 2) Minutes of walking on a treadmill.
  • 3) Estimated Vo2 on treadmill test.
Not Provided
Not Provided
 
Interactive Technologies to Increase Exercise Behavior
Interactive Technologies to Increase Exercise Behavior

The purpose of this study is to examine if an individually tailored Internet intervention is more efficacious than an individually tailored print-based intervention and standard Internet intervention for physical activity adoption and maintenance among sedentary adults.

As many as 75% of Americans do not engage in regular physical activity and 25% are completely inactive. The risk of cardiovascular disease is almost doubled among people who are physically inactive, comparable to the risk associated with increased systolic blood pressure, cigarette smoking, and elevated serum cholesterol. To make an impact on physical activity prevalence at the population level, research must focus at the interface between clinical efficacy trials and large-scale dissemination studies. Studies at this interface must compare proven interventions with new innovations that have the potential to reach large numbers of sedentary Americans.

The objective of this study is to determine the differential effect of intervention delivery channel (Tailored Internet versus Tailored Print) on physical activity adoption and maintenance in previously sedentary adults. To our knowledge, no studies have examined the efficacy of a Tailored Internet-based physical activity intervention. Thus, we will conduct a randomized controlled clinical trial comparing three groups, 1) Internet-based motivationally-tailored individualized feedback (Tailored Internet); 2) print-based motivationally-tailored individualized feedback which has previously shown to be efficacious (Tailored Print); and 3) websites currently available to the public (Standard Internet comparison group). Two hundred and forty healthy, sedentary women and men ages 18-65 will be randomly assigned to one of the three groups. The Tailored Internet and Tailored Print arms will be matched on frequency and content of contact. Data will be collected at baseline, 6, and 12 months using well-established physical activity and physical performance measures, as well as a comprehensive set of psychosocial questionnaires. Our primary hypothesis is that individuals randomized to the Tailored Internet arm will exhibit significantly higher levels of physical activity participation at 6 and 12 months than individuals in the Tailored Print arm due to the enhanced capabilities of the Internet (e.g., immediacy of feedback and enhanced graphics). And, in addition, subjects randomized to the Tailored Internet or Tailored Print conditions will exhibit significantly higher levels of physical activity participation at 6 and 12 months than those in the Standard Internet comparison condition. Other questions of interest will include an examination of potential moderators and mediators of the intervention-physical activity relationship. This study will contribute important information regarding the relative efficacy of Internet and print-based interventions, each of which can be utilized for widespread public health dissemination.

Interventional
Phase 1
Phase 2
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Cardiovascular Disease
Behavioral: Internet and print-based interventions
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
240
May 2006
Not Provided

Inclusion Criteria:

  • Sedentary, defined as exercising less than 90 minutes per week
  • Lack of access to the Internet
  • Lack of access to receiving mail

Exclusion Criteria:

  • Coronary heart disease (history of myocardial infarction or symptoms of angina)
  • Diabetes
  • Stroke
  • Osteoarthritis
  • Osteoporosis
  • Orthopedic problems which would limit treadmill testing
  • Other medical or psychological problems that could make adherence with the study protocol difficult or dangerous
  • Consumption of three or more alcoholics drinks per day
  • Current or planned pregnancy
  • Planning to move from the area within the next year
  • Current suicidal ideation or psychosis
  • Current clinical depression
  • Recent hospitalization due to a psychiatric disorder
  • Taking medication that may impair physical activity tolerance or performance (e.g., beta blockers).
Both
18 Years to 65 Years
Yes
Contact information is only displayed when the study is recruiting subjects
United States
 
NCT00200317
R01 HL69866
Not Provided
Not Provided
The Miriam Hospital
  • University of Pittsburgh
  • Brown University
Principal Investigator: Bess H Marcus, Ph.D. Brown Medical School & The Miriam Hospital
The Miriam Hospital
September 2005

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