Validation of Objective Measures of Place-Based Physical Activity

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.

Completed

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Key information

Conditions

Physical Activity Behavior Blood Coagulation Disorders, Inherited Blood Platelet Disorders Congenital, Hereditary, and Neonatal Diseases and Abnormalities Genetic Diseases, Inborn Gray Platelet Syndrome Hematologic Diseases Hemic and Lymphatic Diseases Motor Activity

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University of California, San Diego

La Jolla, California, 92093, United States

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Primary outcomes

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.
Usability

Time frame: 1 day

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

Sponsors and collaborators

Lead sponsor

University of California, San Diego

Other

Collaborators

National Cancer Institute (NCI)
San Diego State University

Registry information

Important dates

Study start: 2011
Primary completion: 2014
Study completion: 2014
First posted: Jun 25, 2013
Registry last updated: Dec 5, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed