Key result
Aging and HF alter cardiovascular function, impairing skeletal muscle O2 delivery and metabolic performance.
Why the study?
To examine the extent to which O2 delivery enables optimal metabolic and contractile function across regulatory systems, and how aging and heart failure alter cardiovascular function and muscle metabolism.
This review outlines the physiological mechanisms coupling oxygen delivery and utilization in skeletal muscle, emphasizing the impact of aging, heart failure, and the therapeutic potential of exercise training.
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Should not yet change practice in HF; leaves open optimal exercise strategies to restore O2 matching.
Nyberg et al. (2022) conducted a review in Aging and Heart Failure. Aging and heart failure alter cardiovascular structure and function, shifting the matching of skeletal muscle O2 demand and delivery and impacting metabolic and contractile performance.
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