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. 2021 Oct 24;3(4):100164.
doi: 10.1016/j.arrct.2021.100164. eCollection 2021 Dec.

Construct Validity and Responsiveness of the Rapid Assessment of Physical Activity in Adults Living With HIV

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Construct Validity and Responsiveness of the Rapid Assessment of Physical Activity in Adults Living With HIV

Kenneth S Noguchi et al. Arch Rehabil Res Clin Transl. .

Abstract

Objective: To evaluate the construct validity and responsiveness of the Rapid Assessment of Physical Activity (RAPA) for measuring physical activity (PA) in adults living with HIV.

Design: Secondary analysis of an interrupted time-series intervention study.

Setting: Community-based fitness facility in Toronto, Canada.

Participants: Sixty-seven adults (N=67) living with HIV (n=5 women; mean age, 51.8±11.6 years) with available baseline data to assess for construct validity of the RAPA, of which 50 (n=4 women; age, 53.2±11.4 years) had follow-up data to evaluate responsiveness.

Interventions: Two months of a community-based exercise intervention involving thrice weekly multicomponent exercises.

Main outcome measures: We used a single-item PA questionnaire as a convergent outcome to the RAPA, while peak oxygen consumption, general health status, and number of concurrent health conditions were divergent outcomes. We tested 11 a priori hypotheses (6 construct validity, 5 responsiveness) using Spearman ρ, Wilcoxon signed-rank tests, Cohen's d, standardized effect size (SES), and standardized response mean (SRM). We considered acceptable construct validity and responsiveness if >75% of hypotheses were confirmed.

Results: All of the hypotheses (100%) for construct validity were confirmed. The RAPA demonstrated moderate correlations with the single-item PA questionnaire (ρ=0.61), and negligible correlations with divergent outcome measures (ρ=0.08-0.21). Two of the 5 hypotheses (40.0%) for responsiveness were confirmed. RAPA scores were significantly greater after 2 months of training (P<.001) and demonstrated a small to moderate effect size (d=0.50, SES=0.47, SRM=0.48). There was a low correlation between change in RAPA scores and change in single-item PA questionnaire scores (ρ=0.48).

Conclusions: The RAPA demonstrated acceptable construct validity and poor responsiveness in adults living with HIV. Therefore, the RAPA can be used cross-sectionally but may be used in conjunction with other measures of PA for adults living with HIV.

Keywords: CBE, community-based exercise; Exercise; HIV; PA, physical activity; Psychometrics; RAPA, Rapid Assessment of Physical Activity; Rehabilitation.

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Figures

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Fig 1
Study flow chart.

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References

    1. Frank TD, Carter A, Jahagirdar D, et al. Global, regional, and national incidence, prevalence, and mortality of HIV, 1980–2017, and forecasts to 2030, for 195 countries and territories: a systematic analysis for the Global Burden of Diseases, Injuries, and Risk Factors Study 2017. Lancet HIV. 2019;6:e831–e859. - PMC - PubMed
    1. Gebo KA, Fleishman JA, Conviser R, et al. Contemporary costs of HIV healthcare in the HAART era. AIDS. 2010;24:2705–2715. - PMC - PubMed
    1. Teeraananchai S, Kerr S, Amin J, Ruxrungtham K, Law M. Life expectancy of HIV-positive people after starting combination antiretroviral therapy: a meta-analysis. HIV Med. 2017;18:256–266. - PubMed
    1. Triant VA, Lee H, Hadigan C, Grinspoon SK. Increased acute myocardial infarction rates and cardiovascular risk factors among patients with human immunodeficiency virus disease. The J Clin Endocrinol Metab. 2007;92:2506–2512. - PMC - PubMed
    1. Goulet JL, Fultz SL, Rimland D, et al. Do patterns of comorbidity vary by HIV status, age, and HIV severity? Clin Infect Dis. 2007;45:1593–1601. - PMC - PubMed

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