Sayeh Bayat1,2, Gary Naglie2,3,4,5,6, Mark J Rapoport7,8, Elaine Stasiulis4,9, Michael J Widener10, Alex Mihailidis1,2,11. 1. Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada. 2. KITE Research Institute, Toronto Rehabilitation Institute, Toronto, Ontario, Canada. 3. Department of Medicine, Baycrest Health Sciences, Toronto, Ontario, Canada. 4. Rotman Research Institute, Baycrest Health Sciences, Toronto, Ontario, Canada. 5. Department of Medicine, University of Toronto, Toronto, Ontario, Canada. 6. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada. 7. Department of Psychiatry, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada. 8. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada. 9. Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada. 10. Department of Geography and Planning, University of Toronto, Toronto, Ontario, Canada. 11. Department of Occupational Therapy & Occupational Science, University of Toronto, Toronto, Ontario, Canada.
Abstract
INTRODUCTION: An active lifestyle may protect older adults from cognitive decline. Yet, due to the complex nature of outdoor environments, many people living with dementia experience decreased access to outdoor activities. In this context, conceptualizing and measuring outdoor mobility is of great significance. Using the global positioning system (GPS) provides an avenue for capturing the multi-dimensional nature of outdoor mobility. The objective of this study is to develop a comprehensive framework for comparing outdoor mobility patterns of cognitively intact older adults and older adults with dementia using passively collected GPS data. METHODS: A total of 7 people with dementia (PwD) and 8 cognitively intact controls (CTLs), aged 65 years or older, carried a GPS device when travelling outside their homes for 4 weeks. We applied a framework incorporating 12 GPS-based indicators to capture spatial, temporal, and semantic dimensions of outdoor mobility. RESULTS: Despite a small sample size, the application of our mobility framework identified several significant differences between the 2 groups. We found that PwD participated in more medical-related (Cliff's Delta = 0.71, 95% CI: 0.34-1) and fewer sport-related (Cliff's Delta = -0.78, 95% CI: -1 to -0.32) activities compared to the cognitively intact CTLs. Our results also suggested that longer duration of daily walking time (Cliff's Delta = 0.71, 95% CI: 0.148-1) and longer outdoor activities at night, after 8 p.m. (Hedges' g = 1.42, 95% CI: 0.85-1.09), are associated with cognitively intact individuals. CONCLUSION: Based on the proposed framework incorporating 12 GPS-based indicators, we were able to identify several differences in outdoor mobility in PwD compared with cognitively intact CTLs.
INTRODUCTION: An active lifestyle may protect older adults from cognitive decline. Yet, due to the complex nature of outdoor environments, many people living with dementia experience decreased access to outdoor activities. In this context, conceptualizing and measuring outdoor mobility is of great significance. Using the global positioning system (GPS) provides an avenue for capturing the multi-dimensional nature of outdoor mobility. The objective of this study is to develop a comprehensive framework for comparing outdoor mobility patterns of cognitively intact older adults and older adults with dementia using passively collected GPS data. METHODS: A total of 7 people with dementia (PwD) and 8 cognitively intact controls (CTLs), aged 65 years or older, carried a GPS device when travelling outside their homes for 4 weeks. We applied a framework incorporating 12 GPS-based indicators to capture spatial, temporal, and semantic dimensions of outdoor mobility. RESULTS: Despite a small sample size, the application of our mobility framework identified several significant differences between the 2 groups. We found that PwD participated in more medical-related (Cliff's Delta = 0.71, 95% CI: 0.34-1) and fewer sport-related (Cliff's Delta = -0.78, 95% CI: -1 to -0.32) activities compared to the cognitively intact CTLs. Our results also suggested that longer duration of daily walking time (Cliff's Delta = 0.71, 95% CI: 0.148-1) and longer outdoor activities at night, after 8 p.m. (Hedges' g = 1.42, 95% CI: 0.85-1.09), are associated with cognitively intact individuals. CONCLUSION: Based on the proposed framework incorporating 12 GPS-based indicators, we were able to identify several differences in outdoor mobility in PwD compared with cognitively intact CTLs.
Authors: Neda Firouraghi; Behzad Kiani; Hossein Tabatabaei Jafari; Vincent Learnihan; Jose A Salinas-Perez; Ahmad Raeesi; MaryAnne Furst; Luis Salvador-Carulla; Nasser Bagheri Journal: Int J Health Geogr Date: 2022-08-04 Impact factor: 5.310
Authors: Sophie N Gaber; Liv Thalén; Camilla W Malinowsky; Isabel Margot-Cattin; Kishore Seetharaman; Habib Chaudhury; Malcolm Cutchin; Sarah Wallcook; Anders Kottorp; Anna Brorsson; Samantha Biglieri; Louise Nygård Journal: J Appl Gerontol Date: 2022-06-30
Authors: Sayeh Bayat; Ganesh M Babulal; Suzanne E Schindler; Anne M Fagan; John C Morris; Alex Mihailidis; Catherine M Roe Journal: Alzheimers Res Ther Date: 2021-06-14 Impact factor: 6.982