Examinando por Autor "Demeyer, Heleen"

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    Ítem
    Determinants of study completion and response to a 12-month behavioral physical activity intervention in chronic obstructive pulmonary disease: a cohort study
    (Public Library of Science, 2019-05-20) Koreny, Maria; Demeyer, Heleen; Arbillaga Etxarri, Ane; Gimeno-Santos, Elena; Barberan-Garcia, Anael; Benet, Marta; Balcells, Eva; Borrell, Eulàlia; Marín, Alicia; Rodríguez Chiaradía, Diego A.; Vall-Casas, Pere; Vilaró, Jordi; Rodríguez-Roisin, Robert; Garcia-Aymerich, Judith
    Objectives Physical activity is key to improve the prognosis of chronic obstructive pulmonary disease (COPD). To help to tailor future interventions we aimed to identify the baseline characteristics of COPD patients which predict 12-month completion and response to a behavioral physical activity intervention. Methods This is a 12-month cohort study of the intervention arm of the Urban Training randomized controlled trial (NCT01897298), an intervention proven to be efficacious to increase physical activity. We considered baseline sociodemographic, interpersonal, environmental, clinical and psychological characteristics as potential determinants of completion and response. We defined completion as attending the 12-month study visit. Among completers, we defined response as increasing physical activity ≥1100 steps/day from baseline to 12 months, measured by accelerometer. We estimated the factors independently for completion and response using multivariable logistic regression models. Results Of a total of 202 patients (m (SD) 69 (9) years, 84% male), 132 (65%) completed the study. Among those, 37 (28%) qualified as responders. Higher numbers of baseline steps/day (OR [95% CI] 1.11 [1.02-1.21] per increase of 1000 steps, p<0.05) and living with a partner (2.77 [1.41-5.48], p<0.01) were related to a higher probability of completion while more neighborhood vulnerability (0.70 [0.57-0.86] per increase of 0.1 units in urban vulnerability index, p<0.01) was related to a lower probability. Among the completers, working (3.14 [1.05-9.33], p<0.05) and having an endocrino-metabolic disease (4.36 [1.49-12.80], p<0.01) were related to a higher probability of response while unwillingness to follow the intervention (0.21 [0.05-0.98], p<0.05) was related to a lower probability. Conclusions This study found that 12-month completion of a behavioral physical activity intervention was generally determined by previous physical activity habits as well as interpersonal and environmental physical activity facilitators while response was related to diverse factors thought to modify the individual motivation to change to an active lifestyle.
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    Ítem
    Patterns of physical activity progression in patients with COPD
    (Elsevier Doyma, 2021-03) Koreny, Maria; Demeyer, Heleen; Benet, Marta; Arbillaga Etxarri, Ane; Balcells, Eva; Barberan-Garcia, Anael; Gimeno-Santos, Elena; Hopkinson, Nicholas S.; Jong, Corina de; Karlsson, Niklas; Louvaris, Zafeiris; Polkey, Michael I.; Puhan, Milo A.; Rabinovich, Roberto A.; Rodríguez-Roisin, Robert; Vall-Casas, Pere; Vogiatzis, Ioannis; Troosters, Thierry; Garcia-Aymerich, Judith
    Introduction: Although mean physical activity in COPD patients declines by 400–500 steps/day annually, it is unknown whether the natural progression is the same for all patients. We aimed to identify distinct physical activity progression patterns using a hypothesis-free approach and to assess their determinants. Methods: We pooled data from two cohorts (usual care arm of Urban Training [NCT01897298] and PROactive initial validation [NCT01388218] studies) measuring physical activity at baseline and 12 months (Dynaport MoveMonitor). We identified clusters (patterns) of physical activity progression (based on levels and changes of steps/day) using k-means, and compared baseline sociodemographic, interpersonal, environmental, clinical and psychological characteristics across patterns. Results: In 291 COPD patients (mean ± SD 68 ± 8 years, 81% male, FEV1 59 ± 19%pred) we identified three distinct physical activity progression patterns: Inactive (n = 173 [59%], baseline: 4621 ± 1757 steps/day, 12-month change (Δ): −487 ± 1201 steps/day), Active Improvers (n = 49 [17%], baseline: 7727 ± 3275 steps/day, Δ: + 3378 ± 2203 steps/day) and Active Decliners (n = 69 [24%], baseline: 11 267 ± 3009 steps/day, Δ: −2217 ± 2085 steps/day). After adjustment in a mixed multinomial logistic regression model using Active Decliners as reference pattern, a lower 6-min walking distance (RRR [95% CI] 0.94 [0.90–0.98] per 10 m, P =.001) and a higher mMRC dyspnea score (1.71 [1.12–2.60] per 1 point, P =.012) were independently related with being Inactive. No baseline variable was independently associated with being an Active Improver. Conclusions: The natural progression in physical activity over time in COPD patients is heterogeneous. While Inactive patients relate to worse scores for clinical COPD characteristics, Active Improvers and Decliners cannot be predicted at baseline.