Key result
Potassium shifts during high-intensity exercise may contribute substantially to fatigue in skeletal muscle, whereas the heart controls potassium balance much more effectively.
Design
Review
Authors
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May guide fatigue assessment during intense exercise; leaves open whether cardiac potassium control can be therapeutically targeted.
Potassium shifts during high-intensity exercise contribute to skeletal muscle fatigue, but the heart effectively controls potassium balance except during ischemia.
Sejersted et al. (2000) conducted a review in Potassium shifts during exercise. Exercise was evaluated. Potassium shifts during high-intensity exercise may contribute substantially to fatigue in skeletal muscle, whereas the heart controls potassium balance much more effectively.
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