The CHAT (Community Health Advice by Telephone) Study - Full Text View

Purpose

The purpose of the study is to compare a telephone-administered physical activity counseling program delivered by a person or by a telephone-linked computer system and test their relative benefits in improving regular physical activity among adults ages 55 and older.

Condition	Intervention	Phase
Health Behavior Healthy	Behavioral: The Stanford Active Choices program Behavioral: The TLC system	Phase 2

Study Type:	Interventional
Study Design:	Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Single Blind
Official Title:	Exercise Advice by Human or Computer: Testing 2 Theories

Resource links provided by NLM:

MedlinePlus related topics: Exercise and Physical Fitness Healthy Living

U.S. FDA Resources

Further study details as provided by National Institute on Aging (NIA):

Primary Outcome Measures:

Increase in physical activity measured by the Stanford 7-Day Physical Activity Recall and the Community Healthy Activities Model Program for Seniors (CHAMPS) physical activity questionnaire for older adults

Secondary Outcome Measures:

Physical performance on a symptom-limited, graded exercise treadmill test
quality of life and psychological questionnaires measuring physical functioning, sleep, perceived stress, depressive symptoms

Estimated Enrollment:	225
Study Start Date:	June 1999
Study Completion Date:	December 2003
Primary Completion Date:	December 2003 (Final data collection date for primary outcome measure)

Detailed Description:

Two hundred and twenty five healthy, sedentary men and women ages 55 and older will be randomly assigned to one of three conditions: 12 months of physical activity counseling delivered by a human counselor, 12 months of physical activity counseling delivered by a telephone-linked computer system, or a 12-month attention-control condition (a health education class). Data on physical activity participation and related quality of life indicators (e.g., improved physical functioning, fitness, sleep) will be collected at baseline, 6 months, 12 month post-test and 18 month follow-up. The primary hypotheses are:

participants in either physical activity counseling condition will show greater improvements in physical activity participation at 12 months compared to the attention-control condition;
participants in the human counselor condition will show greater improvements in physical activity at 12 months relative to the computer condition; and
participants in the computer condition will show better maintenance of physical activity between 12 and 18 months compared to participants in the human counselor condition.

Eligibility

Ages Eligible for Study:	55 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

Men and women ages 55 and older
Free of any medical condition that would limit participation in independent exercise
Not currently engaged in a regular pattern of physical conditioning
Free of clinical psychopathology
Stable on current medications
Planning to remain in the geographic area through the duration of the trial
Able to read and speak English sufficiently to understand protocol materials
Can use the telephone unaided
Willing to accept random assignment to any study condition

Exclusion Criteria:

Under the age of 55
Currently under treatment for an acute, serious medical condition (e.g., cancer, heart disease, stroke)
Physically active on a regular basis (i.e. performing more than 60 minutes per week of aerobic physical activity of at least a moderate intensity)
Unstable and/or uncontrolled on medications for high blood pressure or depression
Unable or unwilling to use a telephone unaided
Unwilling to accept random assignment to study condition

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00131092

Locations

United States, California
Stanford Prevention Research Center
Stanford, California, United States, 94305-5705

Sponsors and Collaborators

National Institute on Aging (NIA)

Investigators

Principal Investigator:

Abby C. King, PhD

Stanford Prevention Research Center

More Information

Publications:

King AC, Friedman R, Marcus B, Castro C, Forsyth L, Napolitano M, Pinto B. Harnessing motivational forces in the promotion of physical activity: the Community Health Advice by Telephone (CHAT) project. Health Educ Res. 2002 Oct;17(5):627-36.

Castro CM, King AC. Telephone-assisted counseling for physical activity. Exerc Sport Sci Rev. 2002 Apr;30(2):64-8. Review.

Pinto BM, Friedman R, Marcus BH, Kelley H, Tennstedt S, Gillman MW. Effects of a computer-based, telephone-counseling system on physical activity. Am J Prev Med. 2002 Aug;23(2):113-20.

Glanz K, Shigaki D, Farzanfar R, Pinto B, Kaplan B, Friedman RH. Participant reactions to a computerized telephone system for nutrition and exercise counseling. Patient Educ Couns. 2003 Feb;49(2):157-63.

ClinicalTrials.gov Identifier:	NCT00131092 History of Changes
Other Study ID Numbers:	AG0033, R01AG016587, Sponsored Proj. Office #20047
Study First Received:	August 8, 2005
Last Updated:	December 9, 2009
Health Authority:	United States: Federal Government

Keywords provided by National Institute on Aging (NIA):

exercise
aging
physical activity

ClinicalTrials.gov processed this record on May 19, 2013