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Barros D, Borges-Machado F, Silva-Fernandes A, Ribeiro O, Carvalho J. Do physical fitness and cognitive function mediate the relationship between basic activities of daily living and quality of life in older adults with dementia? Qual Life Res 2024; 33:917-926. [PMID: 38112863 PMCID: PMC10973068 DOI: 10.1007/s11136-023-03570-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE Independence in activities of daily living (ADLs) is associated with quality of life (QoL) in individuals with dementia. However, the contribution of physical and cognitive functions to this relationship needs further examination. This study aims to examine the mediating effect of physical fitness and cognitive function in the relationship between independence in basic ADLs and QoL among older adults with dementia. METHODS This cross-sectional study included 107 older adults with dementia (74.8% women; age 78.21 ± 7.70 years). Independence in basic ADL and QoL were evaluated using the Barthel Index (BI) and QoL- Alzheimer's Disease Scale, respectively. The Alzheimer's Disease Assessment Scale-Cognitive Subscale and the Mini-Mental State Examination were applied to assess cognitive function. Physical fitness was evaluated using the 30-s chair stand, 2-min step and the Timed-Up and Go tests. A structural equation modelling (SEM) with bootstrapping estimation was conducted to determine the relationship between all variables. RESULTS Independence in basic ADL positively affected QoL and this association was mediated by physical fitness (β = 0.242, p = 0.011). No statistically significant results were observed when testing cognitive function as a mediator between BI and QoL (β = 0.009, p = 0.345). CONCLUSIONS Physical fitness (i.e., lower body strength, aerobic capacity, and mobility) plays a role in the relationship between basic ADL independence and QoL of older adults with dementia, reinforcing the need to improve and monitor these parameters throughout the disease progression. Future longitudinal studies should explore the temporal relationship between physical and cognitive function and its contribution to basic ADL independence and QoL.
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Affiliation(s)
- Duarte Barros
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal.
- ITR - Laboratory for Integrative and Translational Research in Population Health, Porto, Portugal.
| | - Flávia Borges-Machado
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal
- ITR - Laboratory for Integrative and Translational Research in Population Health, Porto, Portugal
- CEGOT - Centre of Studies in Geography and Spatial Planning, Faculty of Arts and Humanities, University of Coimbra, Coimbra, Portugal
| | - Anabela Silva-Fernandes
- Psychological Neuroscience Laboratory, School of Psychology, Psychology Research Center (CIPsi), University of Minho, Braga, Portugal
| | - Oscar Ribeiro
- CINTESIS@RISE - Center for Health Technology and Services Research at the Associate Laboratory RISE - Health Research Network, Aveiro, Portugal
- Department of Education and Psychology, University of Aveiro, Aveiro, Portugal
| | - Joana Carvalho
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal
- ITR - Laboratory for Integrative and Translational Research in Population Health, Porto, Portugal
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Read S, Hicks B, Budden E, Douglass J, Grahamslaw A, Herrero E, Joseph G, Kirkup C, Pusey M, Russell A, Sondh H, Sondh S, Storey B, Towson G, Baxter K, Birks Y, Brayne C, Colclough C, Dangoor M, Dixon J, Donaghy P, Gridley K, Harris PR, Hu B, King D, Knapp M, Miles E, Mueller C, Perach R, Robinson L, Rusted J, Thomas AJ, Wittenberg R, Banerjee S. Long-term impact of the COVID-19 pandemic on the quality of life of people with dementia and their family carers. Age Ageing 2024; 53:afad233. [PMID: 38275095 PMCID: PMC10811518 DOI: 10.1093/ageing/afad233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Indexed: 01/27/2024] Open
Abstract
INTRODUCTION Few studies have longitudinally mapped quality of life (QoL) trajectories of newly diagnosed people with dementia and their carers, particularly during coronavirus disease-2019 (COVID-19). METHODS In a UK cohort study, 261 newly diagnosed people with dementia and 206 family carers were assessed prior to the pandemic (July 2019-March 2020), followed up after the first lockdown (July-October 2020) and then again a year and 2 years later. Latent growth curve modelling examined the level and change of QoL over the four time-points using dementia-specific QoL measures (DEMQOL and C-DEMQOL). RESULTS Despite variations in individual change scores, our results suggest that generally people with dementia maintained their QoL during the pandemic and experienced some increase towards the end of the period. This contrasted with carers who reported a general deterioration in their QoL over the same period. 'Confidence in future' and 'Feeling supported' were the only carer QoL subscales to show some recovery post-pandemic. DISCUSSION It is positive that even during a period of global disruption, decline in QoL is not inevitable following the onset of dementia. However, it is of concern that carer QoL declined during this same period even after COVID-19 restrictions had been lifted. Carers play an invaluable role in the lives of people with dementia and wider society, and our findings suggest that, post-pandemic, they may require greater support to maintain their QoL.
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Affiliation(s)
- Sanna Read
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Ben Hicks
- Brighton and Sussex Medical School, Centre for Dementia Studies, University of Sussex, Brighton, UK
| | - Emily Budden
- Sussex Partnership NHS Foundation Trust, Worthing, UK
| | | | | | - Elena Herrero
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Gregory Joseph
- South London and Maudsley NHS Foundation Trust, London, UK
| | | | - Martha Pusey
- Sussex Partnership NHS Foundation Trust, Worthing, UK
| | - Alice Russell
- Sussex Partnership NHS Foundation Trust, Worthing, UK
| | | | - Sharon Sondh
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Bryony Storey
- Gateshead Health NHS Foundation Trust, Gateshead, UK
| | | | - Kate Baxter
- Social Policy Research Unit, Faculty of Social Sciences, University of York, York, UK
| | - Yvonne Birks
- Social Policy Research Unit, Faculty of Social Sciences, University of York, York, UK
| | - Carol Brayne
- Cambridge Public Health, University of Cambridge, Cambridge, UK
| | | | - Margaret Dangoor
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Josie Dixon
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Paul Donaghy
- Kings College London, Institute of Psychiatry, London, UK
| | - Kate Gridley
- Social Policy Research Unit, Faculty of Social Sciences, University of York, York, UK
| | - Peter R Harris
- School of Psychology, University of Sussex, Brighton, UK
| | - Bo Hu
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Derek King
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Martin Knapp
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Eleanor Miles
- School of Psychology, University of Sussex, Brighton, UK
| | | | - Rotem Perach
- School of Psychology, University of Sussex, Brighton, UK
| | - Louise Robinson
- Population Health Sciences Institute, Newcastle University, Newcastle, UK
| | | | - Alan J Thomas
- Institute for Ageing, Newcastle University, Newcastle, UK
| | - Raphael Wittenberg
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, UK
| | - Sube Banerjee
- Faculty of Health, University of Plymouth, Plymouth, UK
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