SarcomeresMyofibrilsConnectinMuscle ProteinsPsoas MusclesMusclesActininMuscle, StriatedMuscle ContractionMuscle, SkeletalMuscle Fibers, SkeletalMyosinsTropomodulinMicroscopy, ElectronActin CytoskeletonMyocardiumLoop of HenleIsotonic ContractionMuscle DevelopmentIsometric ContractionElasticityRana temporariaBiomechanical PhenomenaTropomyosinMyocytes, CardiacRabbitsActinsDesminMyocardial ContractionStress, MechanicalHeartProtein KinasesAnuraMicromanipulationCalciumMuscular DiseasesMyosin Heavy ChainsFlight, AnimalMicroscopyMicroscopy, ImmunoelectronModels, BiologicalLIM Domain ProteinsCells, CulturedImmobilizationMicroscopy, Phase-ContrastMuscle CellsTime FactorsMicroscopy, FluorescenceNeedlesStress FibersBiophysical PhenomenaLasersMuscle SpindlesSarcolemmaCytoskeletonMicrofilament ProteinsFluorescent Antibody TechniqueBiophysicsProtein IsoformsMuscle RelaxationMicroscopy, ConfocalAnimals, NewbornChickensChick EmbryoSolute Carrier Family 12, Member 1Sarcoplasmic ReticulumRats, Sprague-DawleyElectric StimulationLarva