Matching of O<sub>2</sub> Utilization and O<sub>2</sub> Delivery in Contracting Skeletal Muscle in Health, Aging, and Heart Failure.

Front Physiol · 2022 · PMC9237395 · PMID 35774284

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did not reach statistical significanceno p-value reported

In a more recent study using a combination of diffuse correlation spectroscopy and near-infrared spectroscopy (NIRS), exercising with the arm above the heart was associated with slower blood flow kinetics, however, the observed ∼25% slower O 2 uptake kinetics did not reach statistical significance ( Tucker et al., 2019 ).

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