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. 2021 Sep 2;2(6):zqab045. doi: 10.1093/function/zqab045

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© The Author(s) 2021. Published by Oxford University Press on behalf of American Physiological Society.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — Relationship between skeletal muscle respiration and aerobic capacity. In CH (solid blue line) and MCI (dashed red line) individuals who met established criteria for a reliable graded exercise test (n = 44), cardiorespiratory fitness tracks with State 3 (ADP) respiration (CH; β = 0.615, P = .024 and MCI; β = 0.615, P = .036). There is no significant relationship in medication-treated MCI subjects (dashed gray line). Relationships were assessed within each group using linear regression, adjusting for covariates. CH n = 19, MCI n = 11, and MCI + med n = 14 subjects per group.