Activity variability: A novel physical activity metric and its association with cognitive impairment
We created a novel metric using variability of minute-level changes in activity counts.Low activity variability was associated with a greater prevalence of cognitive impairment.Activity variability outperformed other activity metrics in area under the receiver operating characteristic curve analyses.Future work should examine underlying neurological mechanisms.
Authors
- Michelle C. Carlson (ORCID: https://orcid.org/0000-0003-2465-7421)
- Jennifer A. Schrack (ORCID: https://orcid.org/0000-0001-9244-9267)
- Patrick Donahue (ORCID: https://orcid.org/0000-0003-3994-7384)
- Johannes Thrul (ORCID: https://orcid.org/0000-0001-8929-9579)
Institutions
- Johns Hopkins University (US)
- La Trobe University (AU)
- Sidney Kimmel Comprehensive Cancer Center (US)
Publication Details
- Journal
- Alzheimer s & Dementia Translational Research & Clinical Interventions
- Published
- 2025-04-01
- DOI
- https://doi.org/10.1002/trc2.70079
- Citations
- 3
- Primary Topic
- Physical Activity and Health
- Type
- article
- Field-Weighted Citation Impact
- 3.49
Funders
- Johns Hopkins University
- National Institute on Aging