WS 1.7 Methodological considerations in measuring physical activity and sedentary behaviour in older adults: Implications for accelerometry, GPS and GIS data
R.F. Hunter*1, C. Cleland1, S. Ferguson1, G. Ellis1, R. Reis2, A.A. Hino3, C. Alberico4
1Queen's University Belfast, UK, 2Washington University in St. Louis, USA, 3Pontifical Catholic University of Parana, Brazil, 4North Carolina State University, USA
Healthy urban ageing is a global issue with the need for cities to align with the ‘New Urban Agenda' to ensure ‘age- and gender-responsive planning and investment for sustainable, safe and accessible urban mobility' and ‘resource-efficient transport systems, linking people, places, goods, services and economic opportunities'.
However, the methodological evidence base is limited regarding the collection, processing and analysis of physical activity, sedentary behaviour and location data in older adults. In order to address this problem a detailed methodological study was conducted as part of the Health Urban Living and Ageing in Place (HULAP) Project, an international multi-disciplinary project involving researchers in the UK and Brazil.
The aim of this 1.5 hour workshop is to illustrate and discuss the novel methodological processes that were implemented within the HULAP Project, and involve the dissemination of transparent, replicable, and repeatable methods for Accelerometry, GPS and GIS data collection and novel processing and analysis in older adult populations in high and low income countries.
1. Gain an insight into the novel data processing and analysis methods used for accelerometry, GPS and GIS data in older adults.
2. Share experiences of physical activity, sedentary behaviour and GPS data collection, processing and analysis.
3. Identify how methodologies can be adapted in relation to specific study contexts.
4. Develop recommendations for measuring, processing and analysing accelerometry, GPS and GIS data in older adults in high, middle and low income countries.
During the workshop the facilitators will present an overview of current methodological processes to assess physical activity, sedentary behaviour and built environments. Following the presentation, the HULAP researchers will discuss each of the three types of data separately (1. Accelerometry, 2. GPS and 3. GIS) and in the context of both Brazil and the UK. Participants will then be split into small groups following each data method presentation. Groups will be facilitated by a HULAP researcher who specialises in the use of each measurement tool. Within each small group researchers will be presented with information detailing the various methodological techniques that can be implemented when processing and analysing data for each tool and they will spend approximately 20 minutes discussing these. The methodological processes will include: 1. Accelerometry - wear time/valid hours, valid days, cut points and data imputation; 2. GPS - data imputation and validation parameters; and 3. GIS - buffers, routes and file type. Each small group will discuss Accelerometry, GPS and GIS by context (high and low income countries) and be provided with a dataset to experiment with. We will conclude with group brainstorming to contrast current challenges and future directions for the implementation of these methods for informing research, policy, and practice.