title: Striated muscle fibers: facilitation of contraction at short lengths by caffeine.
abstract: One of the factors evidently responsible for decreasing the force of muscle contraction with shortening is inactivation of the myofibrils in the core of a muscle fiber. Caffeine antagonizes this inactivation and, correspondingly, changes the length-force relationship at short muscle lengths.
mesh_terms: D000818:Animals; D001001:Anura; D001696:Biomechanical Phenomena; D002110:Caffeine / Q000494:pharmacology*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D009132:Muscles / Q000166:cytology; D009210:Myofibrils / Q000502:physiology; D013268:Stimulation, Chemical
chemical_list: D002110:Caffeine