Cellular PO2 as a determinant of maximal mitochondrial O(2) consumption in trained human skeletal muscle.


Previously, by measuring myoglobin-associated PO(2) (P(Mb)O(2)) during maximal exercise, we have demonstrated that 1) intracellular PO(2) is 10-fold less than calculated mean capillary PO(2) and 2) intracellular PO(2) and maximum O(2) uptake (VO(2 max)) fall proportionately in hypoxia. To further elucidate this relationship, five trained subjects performed… (More)


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