Patterns of Physical Activity Progression in Patients With COPD

Although mean physical activity in COPD patients declines by 400–500 steps/day annually, it is unknown whether the natural progression same for all patients. We aimed to identify distinct patterns using a hypothesis-free approach and assess their determinants. pooled data from two cohorts (usual care arm of Urban Training [ NCT01897298 ] PROactive initial validation NCT01388218 studies) measuring at baseline 12 months (Dynaport MoveMonitor). identified clusters (patterns) (based on levels changes steps/day) k-means, compared sociodemographic, interpersonal, environmental, clinical psychological characteristics across patterns. In 291 (mean ± SD 68 8 years, 81% male, FEV 1 59 19% pred ) we three patterns: Inactive (n = 173 [59%], baseline: 4621 1757 steps/day, 12-month change ( ? ): ?487 1201 steps/day), Active Improvers 49 [17%], 7727 3275 : + 3378 2203 Decliners n 69 [24%], 11 267 3009 ?2217 2085 steps/day). After adjustment mixed multinomial logistic regression model as reference pattern, lower 6-min walking distance (RRR [95% CI] 0.94 [0.90–0.98] per 10 m, P .001) higher mMRC dyspnea score (1.71 [1.12–2.60] point, .012) were independently related with being Inactive. No variable was associated an Improver . The over time heterogeneous. While relate worse scores characteristics, cannot be predicted baseline. Aunque la actividad física en pacientes con EPOC declina una media anual de 400-500 pasos/día, se desconoce si esta progresión es igual todos los pacientes. Este estudio pretendió identificar patrones mediante métodos libres hipótesis y evaluar sus determinantes. Se estudiaron estable (media DE: años, hombres, VEMS dos cohortes europeas basal meses (acelerómetro Dynaport identificaron conglomerados (patrones) basados niveles cambios pasos/día usando k-means , compararon entre las características sociodemográficas, interpersonales, ambientales, clínicas psicosociales basales. tres patrones: inactivo basal: 4.621 1.757 cambio (?): 1.201 pasos/día), activo que aumenta 7.727 3.275 ?: +3.378 2.203 pasos/día) reduce 11.267 3.009 ?2.217 2.085 pasos/día). La distancia prueba marcha 6 minutos (6MWD) disnea asociaron independientemente ser RRR [IC 95%] 0,94 [0,90-0,98] por cada m 6MWD (p 0,001) 1,71 [1,12-2,60] punto escala 0,012), respectivamente, comparación el patrón encontraron variables basales asociadas heterogénea. Mientras relaciona peores EPOC, no pudo predecir evolución activos aumentar o reducir