Venous plasma potassium is not associated with maintenance of the exercise pressor reflex in humans

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Population

8 healthy subjects

Comparison

Dynamic and static handgrip exercise at 40% of… vs Baseline resting state

Design

Other

Authors

Discussion

Questions K+ role in exercise pressor reflex; leaves open other metabolites as primary sympathetic drivers in humans.

Population

8 healthy subjects

Intervention

Dynamic (rhythmic handgrip) and static handgrip exercise at 40% of maximal voluntary contraction, with forearm circulatory arrest

Comparator

Baseline resting state

Outcome

Correlation between venous plasma potassium concentrations ([K+](V)) and muscle sympathetic nerve activity (MSNA)surrogate

Venous plasma potassium does not appear to play a direct role in maintaining the exercise pressor reflex in humans.

Daley et al. (2002) studied this question.

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