Print Email Facebook Twitter How many walking and cycling trips made by elderly are beyond commonly used buffer sizes: Results from a GPS study Title How many walking and cycling trips made by elderly are beyond commonly used buffer sizes: Results from a GPS study Author Prins, R.G. Pierik, F. Etman, A. Sterkenburg, R.P. Kamphuis, C.B.M. van Lenthe, F.J. Publication year 2014 Abstract In choosing appropriate buffer sizes to study environmental influences on physical activity, studies are hampered by insufficient insight into the distance elderly travel actively. This study aims at getting insight into the number of trips walked and cycled within various buffer sizes using GPS measures. Data were obtained from the Elderly And their Neighborhood study (Spijkenisse, the Netherlands (2011-2012)). Trip length and mode of transport were derived from the GPS data (N=120; total number of trips=337). Distance decay functions were fitted to estimate the percentage of trips to grocery stores within commonly used buffer sizes. Fifty percent of the trips walked had a distance of at least 729. m; for trips cycled this was 1665. m. Elderly aged under 75 years and those with functional limitations walked and cycled shorter distances than those over 75 years and those without functional limitations. Males cycled shorter distances than females. Distance decay functions may aid the selection of appropriate buffer sizes, which may be tailored to individual characteristics. © 2014 Elsevier Ltd. Subject Earth & EnvironmentUES - Urban Environment & SafetyELSS - Earth, Life and Social SciencesUrban DevelopmentSafetyBuilt EnvironmentActive transportBufferDemographic differencesDistanceGIScycle transportdemographic trendelderly populationGISGPSneighborhoodtravel behaviorwalkingageagedarticlebuffer sizecontrolled studycyclingenvironmental factorfemalefunctional statusglobal positioning systemhumanmalemethodologyNetherlandsphysical activitypriority journalwalking To reference this document use: http://resolver.tudelft.nl/uuid:e3de6b03-ff95-489f-a2a2-6b9d9a0ef741 DOI https://doi.org/10.1016/j.healthplace.2014.01.012 TNO identifier 492944 ISSN 1353-8292 Source Health and Place, 27, 127-133 Bibliographical note Tradenames: Travel recorder X BT-Q1000X, QStarz International Manufacturers: QStarz International Document type article Files To receive the publication files, please send an e-mail request to TNO Library.