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Validation of Objective Measures of Place-Based Physical Activity

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ClinicalTrials.gov Identifier: NCT01886261
Recruitment Status : Completed
First Posted : June 25, 2013
Last Update Posted : December 5, 2014
Sponsor:
Collaborators:
San Diego State University
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Kevin Patrick, MD, MS, University of California, San Diego

Brief Summary:

Usability of the PALMS system, validity of the PALMS system and added value to an existing cohort study.

Hypothesis: Addition of GPS device and use of PALMS system will allow researchers to better examine place-based interventions.


Condition or disease
Physical Activity

Detailed Description:

The Personal Activity Location Measurement System (PALMS) researchers at UCSD have created a web-based processing system for location (GPS) and physical activity (accelerometer) data. We will collect data on a pilot sample of 40 Hispanic persons to a) test the validity of PALMS assessments of transportation modes, and activity in different locations against an objective record of activities derived from images collected by Vicon Revue; b) compare PALMS assessments of transportation modes and activity locations to other self-report measures and interview measures; c) assess the construct validity of PALMS-based activity assessment.

We will be assessing the usability of PALMS in a research staff with no previous experience of using the PALMS system. We will be assessing the added value of using PALMS to examine a place-based intervention in an existing cohort study.


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Study Type : Observational
Actual Enrollment : 144 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Validation of Objective Measures of Place-Based Physical Activity
Study Start Date : September 2011
Actual Primary Completion Date : May 2014
Actual Study Completion Date : May 2014

Resource links provided by the National Library of Medicine





Primary Outcome Measures :
  1. Construct Validity [ Time Frame: 7 days ]
    Construct validity assesses the theoretical relationship of a measure (and resulting variables) with other variables. The multitrait-multimethod matrix (MTMM) is a procedure first developed by Campbell and Fiske to asses construct validity by creating a fully crossed method-by-measure matrix of associations among multiple constructs and multiple measurement methods. The resulting matrix of correlation coefficients gives a pattern of associations that informs the validity evidence of the measure and construct. We will use the following measures in the multitrait multimethod matrix: Neighborhood Physical Activity Questionnaire, the American Timeuse Survey, and PALMS based physical activity in location estimates.

  2. Usability [ Time Frame: 1 day ]
    Direct observation of research staff with no experience using the PALMS system.

  3. Added Value [ Time Frame: baseline and 1 year ]
    We will be assessing GPS tracks in participants in the Fe en Accion cohort to determine the effectiveness of the place-based intervention.



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population

Validation Study: We will be recruiting 40 primarily Spanish speaking, adults from various community locations throughout San Diego County.

Usability Testing:

Recruiting research staff member from the SDSU Fe en Accion research study to participate in usability testing.

Added Value Cohort: Fe en Accion Participants of the Fe en Accion cohort.

Criteria

Validation Study

Inclusion Criteria:

  • Adults (18+ years old)
  • Self-identify as Hispanic/Latino(a)
  • Have a variety of primary transportation modes
  • Have a variety of physical activity levels both occupational and leisure
  • Commute different distances to the location

Exclusion Criteria:

  • Illness that prevents normal activities
  • Inability to ambulate
  • Unable to wear the devices for up to 7 days
  • Unable to complete two phone interviews in English or Spanish
  • Unable to complete a written survey in English or Spanish

Usability Testing:

Research staff members of the SDSU Fe en Accion research study.

Added Value Cohort: Fe en Accion

Inclusion Criteria (Participants of the cohort):

  • Attend church weekly
  • Age: 18 - 65 years old
  • Must live in San Diego County
  • Live within 4 miles of their church
  • engage in less than 150 minutes of leisure time moderate and vigorous physical activity
  • Latina woman

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01886261


Locations
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United States, California
University of California, San Diego
La Jolla, California, United States, 92093
Sponsors and Collaborators
University of California, San Diego
San Diego State University
National Cancer Institute (NCI)
Investigators
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Principal Investigator: Kevin Patrick, MD, MS UCSD

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Responsible Party: Kevin Patrick, MD, MS, Professor, University of California, San Diego
ClinicalTrials.gov Identifier: NCT01886261     History of Changes
Other Study ID Numbers: 111274/ 121378
R01CA167693 ( U.S. NIH Grant/Contract )
First Posted: June 25, 2013    Key Record Dates
Last Update Posted: December 5, 2014
Last Verified: December 2014
Keywords provided by Kevin Patrick, MD, MS, University of California, San Diego:
validation
physical activity
place-based interventions
construct validity
divergent validity
usability
gps
PALMS