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Physical ActivityNCT01886261

Validation of Objective Measures of Place-Based Physical Activity

An observational study of Physical Activity, run by University of California, San Diego at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Physical Activity
How many people
144 participants
Where
1 siteUnited States
Study dates
Sep 2011to May 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

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.

Who may be able to join

  • 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
  • Attend church weekly
Show all 11Show fewer
  • 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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of California, San Diego

    La Jolla, California, 92093

Other trials in United States

About this study

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.

Read the 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.

Keywords
validation, physical activity, place-based interventions, construct validity, divergent validity, usability, gps, PALMS
Medical subject headings
Motor Activity, Gray Platelet Syndrome

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Construct Validity

    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.

    Measured: 7 days

  2. Usability

    Direct observation of research staff with no experience using the PALMS system.

    Measured: 1 day

  3. Added Value

    We will be assessing GPS tracks in participants in the Fe en Accion cohort to determine the effectiveness of the place-based intervention.

    Measured: baseline and 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Jun 2013 (estimated)
  2. Study startSep 2011
  3. Primary completionMay 2014
  4. Study completionMay 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
144 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01886261
Sponsor's protocol ID
111274/ 121378
Other IDs
R01CA167693
Status last verified
Dec 2014
First submitted
15 Jan 2013
Last updated
5 Dec 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Physical Activity, run by University of California, San Diego at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Dec 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Construct Validity (time frame: 7 days). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Dec 2014.

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