Movement Patterns in Black Older Adults with Cognitive Impairment
Author Information
Author(s): Wanigatunga Amal, Marino Francesca, Liu Fangyu, Shen Nicola, Karas Marta, Parker Lauren, Albert Marilyn, Schrack Jennifer
Primary Institution: Johns Hopkins Bloomberg School of Public Health
Hypothesis
Does the association between daily movement and Alzheimer's disease risk exist in Black older adults?
Conclusion
The study found that while the total amount of physical activity did not differ between those with and without mild cognitive impairment, variability in morning activity was significantly higher in those with mild cognitive impairment.
Supporting Evidence
- Thirteen participants (62%) were identified with mild cognitive impairment.
- Participants with mild cognitive impairment averaged 1,700,927 counts/d.
- Cognitively unimpaired participants averaged 1,727,588 counts/d.
- Variability in physical activity was higher among those with mild cognitive impairment in the morning.
Takeaway
This study looked at how much Black older adults move during the day and found that those with memory problems move differently in the morning compared to those without.
Methodology
Wrist-worn accelerometry was used to analyze movement in participants, and linear regression models estimated differences in movement by cognitive status.
Potential Biases
Participants were referred from a specific research center, which may introduce selection bias.
Limitations
The sample size was small and may not be representative of the broader population of Black older adults.
Participant Demographics
Median age of participants was 73 years, with 83% being women.
Statistical Information
Confidence Interval
95% CI: 883, 132,020
Statistical Significance
p>0.56
Digital Object Identifier (DOI)
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