Resting-State Brain Activity and Physical Activity Association in 149 Older Adults

A dataset of 149 healthy older adults with a mean age of 68 years, combining resting-state fMRI scans, actigraph-measured physical activity, and neuropsychological performance data. The data was collected and analyzed by Georgia Koromila to investigate associations between brain network connectivity, physical activity intensity, and cognitive function. The dataset was last updated on April 20, 2026.

Use Cases

• Analyzing associations between moderate-to-vigorous physical activity and brain network activity based on the independent component analysis results mentioned in the description.
• Investigating seed-based functional connectivity in relation to physical activity and cognitive performance as described in the hypothesis-driven approach.
• Examining the relationship between the Euclidean norm minus one physical activity metric and activity in the default mode and salience networks.
• Replicating or contrasting the spatially restricted effects found in frontal regions at an uncorrected statistical threshold.

Strengths

• Includes multimodal data from 149 participants, specifically resting-state fMRI, actigraphy, and neuropsychological tests.
• Physical activity was measured objectively using actigraphs worn for 7 days.
• Analysis employed both hypothesis-driven seed-based and data-driven independent component analysis methods.

Limitations

• Row count and column-level documentation are unknown, which limits suitability assessment and requires manual inspection after download.
• The independent component analysis showed effects only at an uncorrected statistical threshold (p < 0.01), suggesting preliminary findings.
• The dataset is very small at 15.5 KB, indicating it likely contains summary results or a document rather than the raw underlying data files.

Provenance

Source

Georgia Koromila, via figshare.

Collection Method

Data collected from 149 healthy older adults using resting-state fMRI, actigraphs, and neuropsychological tests.

Time Range

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Freshness

Last updated 2026-04-20 05:19:33; freshness should be verified.

Geography

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