[Relationship between excitation and contraction in muscles].
D002110:Caffeine / Q000494:pharmacology; D002118:Calcium / Q000378:metabolism; D008274:Magnesium / Q000494:pharmacology; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology*; D009210:Myofibrils / Q000502:physiology
D002110:Caffeine; D008274:Magnesium; D002118:Calcium