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Construct Validity of the Brief Physical Activity Assessment Tool for Clinical Use in COPD
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An open access database for the evaluation of respiratory sound classification algorithms
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Concurrent validity of the Portuguese version of the Brief physical activity assessment tool
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International perception of lung sounds: a comparison of classification across some European borders
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International perception of lung sounds: a comparison of classification across some European borders
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Proceedings of the 3rd IPLeiria’s International Health Congress
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Escala de atitudes face à demência: contributos para a validação
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Construct validity of the brief physical activity assessment tool for clinical use in COPD
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Cruz, Joana; Jácome, Cristina; Oliveira, Ana Luísa Araújo; Paixão, Cátia; Rebelo, Patrícia; Flora, Sofia; Januário, Filipa; Valente, Carla; Andrade, Lília; Marques, Alda. - : Wiley, 1479
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Abstract:
Introduction: Low physical activity (PA) levels are associated with poor health-related outcomes in Chronic Obstructive Pulmonary Disease (COPD). Thus, PA should be routinely assessed in clinical practice. Objectives: This study assessed the construct validity of the Brief Physical Activity Assessment Tool (BPAAT) for clinical use in COPD and explored differences in age, sex and COPD grades. Methods: After linguistic adaptation of the tool to Portuguese, 110 patients (66.4 ± 9.6yrs, 72.7% male, FEV1 = 59.3 ± 25.5%predicted) completed the BPAAT and received an accelerometer. The BPAAT includes two questions assessing the weekly frequency and duration of vigorous- and moderate-intensity PA/walking, classifying individuals as insufficiently or sufficiently active. The BPAAT was correlated with accelerometry (moderate PA, MPA = 1952-5724 counts-per-min [CPM]); vigorous PA, VPA = 5725-∞CPM; moderate-to-vigorous PA, MVPA = 1952-∞CPM; daily steps), through: Spearman's correlations (ρ) for continuous data; %agreement, Kappa, sensitivity and specificity, positive and negative predictive values (PPV, NPV) for categorical data. Results: The BPAAT identified 73.6% patients as "insufficiently active" and 26.4% as "sufficiently active". The BPAAT was weakly to moderately correlated with accelerometry (0.394 ≤ ρ ≤ 0.435, P < 0.05), except for VPA (P = 0.440). This was also observed in age (<65/≥65yrs), COPD grades (GOLD 1-2/3-4) and in male patients (0.363 ≤ ρ ≤ 0.518, P < 0.05 except for VPA). No significant correlations were found in female patients (P > 0.05). Agreement was fair to moderate (0.36 ≤ κ ≤ 0.43; 73.6% ≤ %agreement ≤ 74.5%; 0.50 ≤ sensitivity ≤ 0.52; 0.84 ≤ specificity ≤ 0.91, 0.55 ≤ PPV ≤ 0.79, 0.72 ≤ NPV ≤ 0.82). Conclusion: The BPAAT may be useful to screen patients' PA, independently of age and COPD grade, and identify male patients who are insufficiently active. Care should be taken when using this tool to assess vigorous PA or female patients. ; published
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Keyword:
Activity categories; Chronic obstructive pulmonary disease; Daily activity; Validation study
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URL: http://hdl.handle.net/10773/30622
https://doi.org/10.1111/crj.13333
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