WalkLink: Internet-based Walking Program

2014-08-27 03:12:56 | BioPortfolio


The investigators propose a randomized controlled trial based on the Behavioral Ecological Model to evaluate: (1) the effectiveness of an internet-based fitness walking program delivered to patients with risk factors for cardiovascular disease and stroke; and (2) the contribution of social support networks to enhancing the effectiveness of the internet-based fitness walking program. The investigators will recruit 220 patients who are sedentary and have risk factors for cardiovascular disease and randomly assign them to one of the following groups: 1. Internet-based fitness walking program (WalkLink); 2. Internet-based fitness walking program plus social support network intervention (WalkLink+); and 3. Minimal treatment control group (usual care).

The primary specific aims of this study are to:

1. Evaluate the effects of WalkLink and WalkLink+ relative to a minimal treatment control group on change in: aerobic fitness, walking quantity, blood pressure, body composition, body mass index (BMI), and amount and frequency of moderate and vigorous walking and physical activity from baseline to posttest, and at 6-month follow-up.

2. Compare the differential effectiveness of WalkLink+ to WalkLink on change in: aerobic fitness, walking quantity, blood pressure, body composition, BMI, and amount and frequency of moderate and vigorous walking and physical activity from baseline to posttest, and at 6-month follow-up.

3. Evaluate the mediator and moderator effects of selected individual-level self-management skills (goal setting, planning, self-monitoring), social support variables (number of activity partners and networks, social cues for walking, social praise/reinforcement), and physical-ecological variables (neighborhood walkability, physical cues for walking) on WalkLink and WalkLink+ treatment outcomes.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Factorial Assignment, Masking: Single Blind (Subject), Primary Purpose: Prevention


Physical Activity


WalkLink Walking Program


Penn State College of Medicine, Penn State Milton S. Hershey Medical Center
United States




Milton S. Hershey Medical Center

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:12:56-0400

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