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San Francisco, California 94118


Purpose:

The primary purpose of this study is to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity compared to the control group.


Study summary:

Physical inactivity is associated with increased risk of co-morbidity and premature mortality. Given the rapid growth of mobile phone technology and the increasing number of users, the investigators developed an interactive mobile phone-based physical activity intervention for sedentary women. The investigators propose to conduct a randomized, controlled trial to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity over a 3-month period. 192 sedentary women will be randomized in a 2-to-1 ratio to a 3-month mobile phone-based physical activity intervention group or to a control group. To provide insight into how best to maximize the potential for sustained physical activity after completion of the 3-month program, women in the intervention group who complete the physical activity program will be further randomized into a 6-month maintenance intervention-PLUS program (pedometer plus mobile phone diary) or to a 6-month maintenance intervention-REGULAR program (pedometer only). Unlike a conventional maintenance follow-up in which all subjects continue in their respective randomization arms, re-randomizing subjects into either a maintenance intervention-REGULAR group or a maintenance intervention-PLUS group will allow us to examine the "dose-response" of the maintenance methods if the intervention is effective.


Criteria:

Inclusion Criteria: - Sedentary lifestyle at work and/or during leisure time - Intend to be physically active - Female, age >25 to 69 - Access to a home telephone or a mobile phone - Speak and read English Exclusion Criteria: - Known medical conditions or other physical problems that need special attention in an exercise program - Plan a trip abroad during the first 4 months of the study period. - Pregnant/Delivered a baby during the last 6 months - Known severe hearing or speech problem - Body Mass Index (BMI) > 43.0 kg/m2 - Currently participate in lifestyle modification programs or research studies that may potentially confound the results of the study - History of bariatric surgery or future plans for bariatric surgery in the next 12 months


NCT ID:

NCT01280812


Primary Contact:

Principal Investigator
Yoshimi Fukuoka, Ph.D.
University of California, San Francisco


Backup Contact:

N/A


Location Contact:

San Francisco, California 94118
United States



There is no listed contact information for this specific location.

Site Status: N/A


Data Source: ClinicalTrials.gov

Date Processed: August 31, 2019

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