Volume change and pressure development in muscle during contraction.
D000818:Animals; D001001:Anura; D004594:Electrophysiology; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000502:physiology*; D009132:Muscles / Q000502:physiology*; D009210:Myofibrils / Q000502:physiology*; D011312:Pressure