The Inventory of Physical Activity Barriers: Development and Preliminary Validation
Conference Year
January 2020
Abstract
The level of inactivity among community-dwelling adults 50 years and older is a healthcare concern, particularly when examining the association between increasing age, inactivity, and risk of non-communicable diseases. To confront this concern, healthcare providers need to address the reasons for inactivity. Unfortunately, limited tools exist to address barriers to physical activity (PA). The purpose of our study was to develop and psychometrically evaluate a PA barrier scale for adults 50 years and older. The Inventory of Physical Activity Barriers (IPAB) scale was developed, refined, and evaluated using a cross-sectional and a modified Delphi study. We had two groups of participants: First, 39 adults (50 years and older) provided survey pilot data for psychometric evaluation and then nine interprofessional PA experts assisted with finalizing the scale. Participants completed a demographic questionnaire, Physical Activity Vital Sign questionnaire, and the IPAB. The IPAB’s refinement was guided by item-scale correlations, descriptive statistics, and consensus among the PA experts. Construct validity was examined by comparing mean IPAB scores of inactive and active participants via independent t-test. Internal consistency was assessed via Cronbach Alpha. The IPAB was refined from 172 items to 40 items and found to be internally consistent (α=.97) and able to differentiate individuals who do and do not meet the recommended 150 minutes of PA (p=0.01). The IPAB is a reliable assessment of PA barriers for adults 50 years and older. Preliminary analyses are promising for the scale’s construct validity and support further psychometric evaluation of the tool.
Primary Faculty Mentor Name
Nancy Gell
Secondary Mentor Name
Denise Peters
Status
Graduate
Student College
College of Nursing and Health Sciences
Program/Major
Human Functioning and Rehabilitation Science
Primary Research Category
Health Sciences
The Inventory of Physical Activity Barriers: Development and Preliminary Validation
The level of inactivity among community-dwelling adults 50 years and older is a healthcare concern, particularly when examining the association between increasing age, inactivity, and risk of non-communicable diseases. To confront this concern, healthcare providers need to address the reasons for inactivity. Unfortunately, limited tools exist to address barriers to physical activity (PA). The purpose of our study was to develop and psychometrically evaluate a PA barrier scale for adults 50 years and older. The Inventory of Physical Activity Barriers (IPAB) scale was developed, refined, and evaluated using a cross-sectional and a modified Delphi study. We had two groups of participants: First, 39 adults (50 years and older) provided survey pilot data for psychometric evaluation and then nine interprofessional PA experts assisted with finalizing the scale. Participants completed a demographic questionnaire, Physical Activity Vital Sign questionnaire, and the IPAB. The IPAB’s refinement was guided by item-scale correlations, descriptive statistics, and consensus among the PA experts. Construct validity was examined by comparing mean IPAB scores of inactive and active participants via independent t-test. Internal consistency was assessed via Cronbach Alpha. The IPAB was refined from 172 items to 40 items and found to be internally consistent (α=.97) and able to differentiate individuals who do and do not meet the recommended 150 minutes of PA (p=0.01). The IPAB is a reliable assessment of PA barriers for adults 50 years and older. Preliminary analyses are promising for the scale’s construct validity and support further psychometric evaluation of the tool.