Muscle ContractionMuscle, SkeletalMuscle Fibers, SkeletalIsometric ContractionMusclesTroponin CTroponinMuscle ProteinsMyosinsMuscle FatigueTropomyosinCalciumRabbitsElectric StimulationMuscle, SmoothRegional Blood FlowMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle DevelopmentMuscle, Smooth, VascularMitochondria, MuscleNerve FibersMuscle RelaxationMyofibrilsMyocardial ContractionMuscle DenervationUterine ContractionElectromyographySatellite Cells, Skeletal MuscleMuscular AtrophyHindlimbMuscular DiseasesTime FactorsMuscle SpindlesSarcomeresRats, WistarRats, Sprague-DawleyMyosin Heavy ChainsDietary FiberActinsMuscle, StriatedQuadriceps MuscleGuinea PigsMyocytes, Smooth MuscleGlycogenMuscle CellsSarcoplasmic ReticulumTracheaVasoconstrictionDiaphragmPhysical ExertionMotor NeuronsBiomechanical PhenomenaMuscle WeaknessMyoblastsMyosin Light ChainsMyocardiumOculomotor MusclesIsotonic ContractionAdenosine TriphosphateCells, CulturedKineticsPapillary MusclesNeck MusclesNeuromuscular JunctionPotassium ChlorideModels, BiologicalPsoas MusclesDose-Response Relationship, DrugRNA, MessengerInsulinExercisePhosphorylationAcetylcholineCaffeineRespiratory MusclesSarcolemmaAbdominal MusclesMuscular Dystrophy, AnimalSignal TransductionGlucoseDogsPeristalsisCatsActomyosinMyoblasts, SkeletalPhysical Conditioning, AnimalRana temporariaRyanodine Receptor Calcium Release ChannelMembrane PotentialsOxygen ConsumptionPhosphocreatinePhysical EnduranceMolecular Sequence DataMice, Inbred C57BLMineral FibersMuscle TonusEnergy MetabolismStress, MechanicalTorque