Reliability and Validity of the International Physical Activity Questionnaire Adapted to Include Adults With Physical Disability

Overview

Journal J Phys Act Health

Specialty Orthopedics

Date 2023 Dec 6

PMID 38056440

Authors

Julianne G Clina

R Drew Sayer

James E Friedman

Tsz Kiu Chui

Tapan Mehta

James H Rimmer

James O Hill

Affiliations

Soon will be listed here.

Abstract

Background: People with physical disabilities (PWD) participate in less physical activity than people without physical disabilities (PWoD), which increases the risk for several negative health consequences. Comparing physical activity between PWD and PWoD remains a challenge since no reliable and valid survey exists to measure physical activity in both populations. The International Physical Activity Questionnaire (IPAQ) was adapted to be inclusive of PWD using a recently developed survey adaption framework; however, the adapted IPAQ has not been assessed for reliability and validity. The objective of this study was to assess the reliability and validity of the adapted IPAQ.

Methods: To assess test-retest reliability, the adapted IPAQ was completed twice within a 72-hour period by 172 individuals (PWD: n = 102, PWoD: n = 70) and compared using intraclass correlation coefficients. Using Spearman rho, convergent validity and construct validity were assessed in 62 individuals by comparing the adapted IPAQ against the original instrument and activity monitor measured step count, respectively.

Results: The adapted IPAQ demonstrated moderate test-retest reliability, with intraclass correlation coefficients of total scores for the total sample of .690 (95% confidence interval [CI] .581-.770) and among subgroup analysis (PWD, .640, 95% CI, .457-.761; PWoD, .758, 95% CI, .610-.850). Correlation coefficients were also good for the assessment of convergent validity of total score (.727; 95% CI, .579-.829; P < .001). Construct validity assessment yielded moderate coefficient (.406; 95% CI, .166-.596; P = .001).

Conclusions: The adapted IPAQ demonstrated acceptable reliability and validity and is appropriate for use in PWD and PWoD.

Citing Articles

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Ubeda-Colomer J, Castan A J Clin Med. 2024; 13(22).

PMID: 39598140 PMC: 11595018. DOI: 10.3390/jcm13226997.

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