Muscle fatigue.
D000818:Animals; D001001:Anura; D002415:Cats; D004558:Electric Stimulation; D004576:Electromyography; D005221:Fatigue / Q000503:physiopathology*; D006801:Humans; D008116:Lizards; D009119:Muscle Contraction; D009132:Muscles / Q000503:physiopathology*; D005082:Physical Exertion