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Figure 1

Figure 1. From: Exercise and Alzheimer's Disease Biomarkers in Cognitively Normal Older Adults.

Associations between exercise engagement and biomarker levels. (A) Mean cortical binding potential; (B) CSF Aβ42; (C) CSF tau; (D) CSF ptau181. Quadrants are formed by crossing biomarker thresholds with AHA recommended level of exercise; note the L-shaped distributions in which individuals with positive biomarker status (gray-filled circles) are all sedentary with one exception in (B). Crossed circles represent ε4+ individuals.

Kelvin Y. Liang, et al. Ann Neurol. ;68(3):311-318.

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