Can Wrist-Worn Sensors be the Future of Dementia Screening?
A recent study has demonstrated the potential of wrist-worn sensors in predicting dementia risk, offering a simple and accessible tool for early detection.
A recent study has demonstrated the potential of wrist-worn sensors in predicting dementia risk, offering a simple and accessible tool for early detection.
As the population ages, the number of Australians living with dementia is projected to more than double by 2058, reaching around 849,300 people - presenting challenges for individuals, families, and healthcare systems. Early diagnosis is crucial for implementing preventative measures, yet existing tools that rely on self-reported data can often limit their applicability.
Using data from over 47,000 participants in the UK Biobank study, Dr Lloyd Chan led research to develop a model that leverages digital biomarkers extracted from wrist-worn accelerometers. These devices record walking speed, step count, running duration, and sleep patterns, identifying correlations with dementia risk. Among the findings, slower walking speeds, reduced running durations, and earlier bedtimes were strong predictors of dementia. The model achieved predictive accuracy comparable to existing risk tools.
"This study reinforces the role of wearable technology in transforming dementia prevention. By providing an accessible and cost-effective approach, we can identify individuals at risk earlier and support healthier ageing." states Dr Chan, who is a member of the UNSW Ageing Futures Institute and conjoint research fellow at Neuroscience Research Australia.
“The research underscores the potential of wearable devices to revolutionise dementia screening, particularly for populations with limited access to healthcare. As wearable technology advances, wrist-worn sensors can potentially become an integral part of preventative healthcare strategies worldwide.”
Read the full study here.