Muscle ContractionMuscle, SkeletalMuscle Fibers, SkeletalIsometric ContractionMusclesTroponin CTroponinMuscle ProteinsMyosinsMuscle FatigueTropomyosinElectric StimulationRabbitsCalciumMuscle, SmoothRegional Blood FlowStress, MechanicalMuscle, Smooth, VascularMuscle DevelopmentSciatic NerveMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMitochondria, MuscleBiomechanical PhenomenaMyocardial ContractionMuscle RelaxationElectromyographyPeripheral NervesUterine ContractionMuscle DenervationNerve FibersMyofibrilsRats, Sprague-DawleySatellite Cells, Skeletal MuscleHindlimbMuscular AtrophyTime FactorsOptic NerveRats, WistarMuscular DiseasesGuinea PigsMuscle SpindlesMotor NeuronsActinsSarcomeresTracheaMyocytes, Smooth MuscleNerve RegenerationDiaphragmQuadriceps MuscleMuscle CellsMuscle, StriatedVasoconstrictionCells, CulturedModels, BiologicalGlycogenTibial NervePhysical ExertionMyocardiumMuscle WeaknessSarcoplasmic ReticulumMyosin Heavy ChainsNeuromuscular JunctionAdenosine TriphosphateDose-Response Relationship, DrugPapillary MusclesMechanical ProcessesKineticsMyoblastsOculomotor MusclesAcetylcholineNerve EndingsIsotonic ContractionNeck MusclesRNA, MessengerMyosin Light ChainsPotassium ChlorideDogsSignal TransductionRespiratory MusclesNerve BlockPhosphorylationCatsElasticityExerciseInsulinAbdominal MusclesFemoral NerveMedian NervePeristalsisMice, Inbred C57BLPhysical StimulationPeripheral Nerve InjuriesGlucoseReflexSural NerveNerve CrushCaffeinePsoas MusclesTorque