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Background <p>The International Physical Activity Questionnaire (IPAQ) is widely used to assess physical activity (PA), but its validity compared to device-measured PA data in patients with Femoroacetabular Impingement Syndrome (FAIS) and Acetabular Dysplasia (AD) remains underexplored. We evaluated the convergent and divergent aspects of construct validity of self-reported PA via the IPAQ versus accelerometry data in patients with pre-arthritic hip diseases (FAIS, AD).</p> Methods <p>Participants with FAIS or AD, aged 18 and older, completed the IPAQ and wore accelerometers for 7&#xa0;days. We compared IPAQ-reported moderate-to-vigorous physical activity (MVPA) with accelerometer-measured sedentary behavior, light PA, and MVPA using Pearson correlations and Bland–Altman plots.</p> Results <p>Fifty-four individuals with FAIS or AD participated. We did not find any significant correlations between IPAQ-MVPA and accelerometer-measured PA variables. Bland–Altman plots revealed a positive systematic bias between IPAQ-MVPA scores and accelerometer-measured MVPA.</p> Conclusions <p>The IPAQ-MVPA scores showed divergent validity compared to accelerometer data in individuals with FAIS and AD. Future studies should integrate both self-report and device-based measures to enhance accuracy.</p>

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Construct validity of the international physical activity questionnaire using accelerometry data in patients with femoroacetabular impingement Syndrome and Acetabular Dysplasia: a cross-sectional analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月4日

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  • Naif Z. Alrashdi,
  • Mansour M. Alotaibi,
  • Elroy J. Aguiar,
  • Michael K. Ryan,
  • Matthew P. Ithurburn

摘要

Background

The International Physical Activity Questionnaire (IPAQ) is widely used to assess physical activity (PA), but its validity compared to device-measured PA data in patients with Femoroacetabular Impingement Syndrome (FAIS) and Acetabular Dysplasia (AD) remains underexplored. We evaluated the convergent and divergent aspects of construct validity of self-reported PA via the IPAQ versus accelerometry data in patients with pre-arthritic hip diseases (FAIS, AD).

Methods

Participants with FAIS or AD, aged 18 and older, completed the IPAQ and wore accelerometers for 7 days. We compared IPAQ-reported moderate-to-vigorous physical activity (MVPA) with accelerometer-measured sedentary behavior, light PA, and MVPA using Pearson correlations and Bland–Altman plots.

Results

Fifty-four individuals with FAIS or AD participated. We did not find any significant correlations between IPAQ-MVPA and accelerometer-measured PA variables. Bland–Altman plots revealed a positive systematic bias between IPAQ-MVPA scores and accelerometer-measured MVPA.

Conclusions

The IPAQ-MVPA scores showed divergent validity compared to accelerometer data in individuals with FAIS and AD. Future studies should integrate both self-report and device-based measures to enhance accuracy.