Artikel
Self-reported compared to recorded physical activity is overestimated by psoriatic arthritis and psoriasis patients
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Veröffentlicht: | 18. September 2024 |
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Introduction: Psoriatic arthritis (PsA) impairs physical function which may results in reduced physical activity levels in these patients. For substantial health benefits the WHO recommends 150–300 minutes of moderate physical activity (PA) per week [1], which should also be achieved by PsA patients [2]. We aimed to assess self-reported and recorded PA levels in PsA and psoriasis (Pso) patients.
Methods: Pso and PsA patients (outpatient clinics, Internal Medicine 3, Universitätsklinikum Erlangen) were included after giving written informed consent. Disease activity was recorded by Psoriasis Area and Severity Index (PASI), Dermatology Life Quality Index (DLQI), Psoriatic Arthritis Impact of Disease 12 (PSAID-12), Disease Activity in Psoriatic Arthritis (DAPSA), visual analogue scale for global disease activity and pain. Self-reported PA was assessed with the International Physical Activity Questionnaire (IPAQ) [3] and a customized questionnaire. Habitual PA was recorded for 14 days using wrist-worn accelerometry (GENEActiv, Activinsights Ltd, Kimbolton, UK). PA is reported as time spent in moderate-to-vigorous physical activity (MVPA) in 1 to 10-minute bouts, 10 to 30-minute bouts, >30-minute bouts based on R-package GGIR [4] with validated cut-points [5]. Self-reported and recorded PA were compared with WHO recommendations, and Pearson’s correlations used to analyse the relationship between the assessments.
Results: 39 PsA and 11 Pso patients were included (Table 1 [Tab. 1]). Based on self-reported PA routines Pso and PsA patients comply similarly with WHO guidelines; based on the IPAQ, almost all patients archived the guidelines. According to recorded PA, fewer number of patients reach the WHO guidelines compared to the self-reported assessments (Table 1) and less Pso compared to PsA patients. IPAQ and 1–10 min bouts MVPA correlated for both patient groups (Pso: r=.757, p=.007, PsA: r=.413 p=.009). For PsA patients, correlations were observed for general PA habits and different accumulated bouts of MVPA (general PA vs. 10–30 min bouts MVPA: r=.407 p=.010; general PA vs. >30 min bouts MVPA: r=.404, p=.011).
Conclusion: Patients are likely to overestimate their PA using self-reported assessments. Based on the recorded data, Pso tend to spend less time in moderate to vigorous PA compared to PsA and are not continuously physically active for more than 10 minutes in this activity level.
Acknowledgements: This study war partially funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – SFB 1483 – Project-ID 442419336, EmpkinS.
Keywords: Physical activity, accelerometry, psoriatic arthritis
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