Neighbourhood walkability and physical activity : moderating role of a physical activity intervention in overweight and obese older adults with metabolic syndrome
Colom, Antoni (Hospital Universitari Son Espases (Palma de Mallorca, Balears))
Mavoa, Suzanne (University of Melbourne)
Ruiz, Maurici (Universitat de les Illes Balears)
Wärnberg, Julia (Universidad de Málaga)
Muncunill Farreny, Josep (Hospital Universitari Son Espases (Palma de Mallorca, Balears))
Konieczna, Jadwiga (Hospital Universitari Son Espases (Palma de Mallorca, Balears))
Vich, Guillem (Universitat Autònoma de Barcelona. Departament de Geografia)
Barón López, Francisco Javier (Universidad de Málaga)
Fitó, Montserrat (Institut Hospital del Mar d'Investigacions Mèdiques)
Salas-Salvadó, Jordi (Universitat Rovira i Virgili)
Romaguera, Dora (Hospital Universitari Son Espases (Palma de Mallorca, Balears))

Data:	2020
Resum:	While urban built environments might promote active ageing, an infrequently studied question is how the neighbourhood walkability modulates physical activity changes during a physical activity intervention programme in older adults. We assessed the influence of objectively assessed neighbourhood walkability on the change in physical activity during the intervention programme used in the ongoing PREvención con DIeta MEDiterránea (PREDIMED)-Plus trial. The present study involved 228 PREDIMED-Plus senior participants aged between 55 and 75, recruited in Palma de Mallorca (Spain). Overweight/obese older adults with metabolic syndrome were randomised to an intensive weight-loss lifestyle intervention or a control group. A walkability index (residential density, land use mix, intersections density) was calculated using geographic information systems (1 km sausage-network buffer). Physical activity was assessed using accelerometer and a validated questionnaire, at baseline and two follow-up visits (6-months and 1-year later). Generalised additive mixed models were fitted to estimate the association between the neighbourhood walkability index and changes in physical activity during follow-up. Higher neighbourhood walkability (1 z-score increment) was associated with moderate-to-vigorous accelerometer assessed physical activity duration, (β = 3. 44; 95% CI = 0. 52; 6. 36 min/day). When analyses were stratified by intervention arm, the association was only observed in the intervention group (β = 6. 357; 95% CI = 2. 07;10. 64 min/day) (P for interaction = 0. 055). The results indicate that the walkability of the neighbourhood could support a physical activity intervention, helping to maintain or increase older adults' physical activity.
Ajuts:	Ministerio de Economía y Competitividad PI14/00853 Ministerio de Economía y Competitividad PI16/00662 Instituto de Salud Carlos III PI17/00525
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Longitudinal study ; Physical activity intervention ; Walkability index ; Built environment ; Older people ; PREDIMED-Plus trial
Publicat a:	Age and Ageing, Vol. 50 (november 2020) , p. 963-968, ISSN 1468-2834

DOI: 10.1093/ageing/afaa246
PMID: 33219673

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