Abstract
We investigated whether digoxin lowered muscle Na
+,K
+‐ATPase (NKA), impaired muscle performance and exacerbated exercise K
+ disturbances. Ten healthy adults ingested digoxin (0.25 mg; DIG) or placebo (CON) for 14 days and performed quadriceps strength and fatiguability, finger flexion (FF, 105%
peak‐workrate, 3 × 1 min, fourth bout to fatigue) and leg cycling (LC, 10 min at 33%
...