Heterogeneity of Muscle Blood Flow and Metabolism: Influence of Exercise, Aging, and Disease States
Exercise and Sport Sciences Reviews , Volume 43 - Issue 3 p. 117- 124
The systematic increase in VO2 uptake and O2 extraction with increasing work rates conceals a substantial heterogeneity of O2 delivery (QO2)-to-VO2 matching across and within muscles and other organs. We hypothesize that whether increased/decreased QO2/VO2 heterogeneity can be judged as "good" or "bad," for example, after exercise training or in aged individuals or with disease (heart failure, diabetes) depends on the resultant effects on O2 transport and contractile performance.
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Heinonen, I.H.A, Koga, S, Kalliokoski, K.K, Musch, T.I, & Poole, D.C. (2015). Heterogeneity of Muscle Blood Flow and Metabolism: Influence of Exercise, Aging, and Disease States. Exercise and Sport Sciences Reviews, 43(3), 117–124. doi:10.1249/JES.0000000000000044