Individual and Environmental Mechanisms of PA Change

April 26, 2012 updated by: Kaiser Permanente

Behavioral 2X2 Randomized Controlled Trial to Determine Individual and Environmental Mechanisms of Physical Activity Behavior Change

The focus of this study is to determine the mechanisms that underlie Physical Activity behavior change. We have 2 primary objectives. One, to test the effectiveness of brief, practical interventions to promote and maintain Physical Activity among individuals who are referred to a treadmill stress test but do not present symptoms of cardiac disease. Two, to test the potential individual and environmental mediators and moderators of this effect.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

There is a dearth of information on the mechanisms, and potential moderators, of physical activity (PA) intervention effectiveness. Understanding the mechanisms of PA change will aid in successful intervention development while understanding moderators will allow a matching of intervention components to individual needs of particular populations. To definitively understand mechanisms and moderators of behavior change it is necessary to develop theory-based interventions that include specific strategies that target proposed mechanisms of change while monitoring the proposed mediating and moderating variables prior to and following intervention. This proposal highlights the use of the Ecological Model of Physical Activity (EMPA) as a theoretical guide to strategy development. The EMPA highlights the necessity to address individual (biological & psychosocial) and environmental variables (e.g., PA resource accessibility) when developing and implementing interventions. Health care patients who have been referred for a treadmill cardiovascular stress test-but do not present abnormal ECG or chest pain during testing-will be will be stratified by diagnosis of low heart rate recovery, a potential biological moderator of intervention effectiveness. To detect the potential independent and combined effects of individual motivation and environmental accessibility we will conduct a randomized 2X2 factorial trial to test proposed mediators of effectiveness. Participants (n=500) will be randomized to an individual (I), environmental (E) , combination (I+E), or matched contact nutrition control. All intervention conditions will include a CD-ROM session, 3 tailored mail, and 3 tailored automated telephone follow-ups over a 6-month period. We will assess the reach, effectiveness, clinician adoption, and staff implementation of these interventions, individually, in combination, and when compared to controls among an understudied and high need population-individuals who are at an elevated risk, but have not yet suffered a serious cardiac event (approximately 3,000,000 individuals/year in the US). The results of this project will identify the causal, and potentially additive, relationships of environmental and individual mediators of PA change and allow the examination of potential biological moderators of effectiveness. Because intervention typically effects decrease over time and studies do not address setting-related issues necessary to ensure sustainability of delivery at the organizational level we will determine the maintenance of intervention effects on causal mechanisms and PA, 6 & 12 months following intervention. The interventions will be developed for delivery within the regular scope of treadmill stress testing by typical medical staff and cost of delivery will be assessed for each intervention condition. This project uniquely utilizes methods that will facilitate institutionalization of the intervention components following the successful completion of the trial and potential adoption of the intervention in other health care settings.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
452

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Colorado
      • Denver, Colorado, United States, 80231
        • Kaiser Permanente Colorado, Institute for Health Research

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • No chest pains during stress testing
  • Normal ECG During Stress Testing.
  • Inactive or insufficiently active (<150 moderate intensity PA/week)

Exclusion Criteria:

  • Age
  • No access to telephone
  • Not able to read or understand English.
  • Home and Work address outside of 6-county area
  • Have an active recreation center membership
  • Any other contraindication to physical activity identified during stress testing.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 1
Protection motivation theory-based tailored intervention to promote physical activity delivered via interactive technology (computer interactive session, automated telephone counseling, tailored newsletters).
Behavioral: Protection Motivation Theory-Based Intervention
Targets perceptions of outcome severity and susceptibility, self-efficacy, response efficacy, response costs, and rewards of physical inactivity. One computer interactive session is followed by 3 automated telephone counseling sessions and 4 tailored newletters spread over a 6 month period.
Experimental: 2
Environmental access and awareness intervention to promote physical activity delivered via interactive technology (computer interactive session, automated telephone counseling, tailored newsletters).
Behavioral: Environmenta
Targets increased awareness and use of local parks and trials near the home and work environments. Targets increased access by providing membership to a local fitness facility for 12 months. One computer interactive session is followed by 3 automated telephone counseling sessions and 4 tailored newletters spread over a 6 month period.
Experimental: 3
Combination intervention combining protection motivation and environmental intervention components to promote physical activity delivered via interactive technology (computer interactive session, automated telephone counseling, tailored newsletters).
Behavioral: Protection Motivation Theory-Based Intervention
Targets perceptions of outcome severity and susceptibility, self-efficacy, response efficacy, response costs, and rewards of physical inactivity. One computer interactive session is followed by 3 automated telephone counseling sessions and 4 tailored newletters spread over a 6 month period.
Behavioral: Environmenta
Targets increased awareness and use of local parks and trials near the home and work environments. Targets increased access by providing membership to a local fitness facility for 12 months. One computer interactive session is followed by 3 automated telephone counseling sessions and 4 tailored newletters spread over a 6 month period.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Physical Activity: CHAMPS self report measure and Actigraph Accelerometers
Time Frame: 6 & 12 months
6 & 12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Dollar amounts to include cost of intervention delivery by condition.
Time Frame: 6 months
6 months
Heart Rate Recovery.
Time Frame: 6 months
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Kaiser Permanente

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Paul A Estabrooks, PhD, Kaiser Permanente

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2006

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 5, 2007

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 5, 2007

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 7, 2007

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 27, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 26, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2012

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • DK70553
  • R01DK070553 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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