Muscle ContractionMuscle, SkeletalConnective TissueMuscle Fibers, SkeletalIsometric ContractionMusclesConnective Tissue DiseasesTroponin CTroponinMuscle ProteinsConnective Tissue Growth FactorMyosinsMuscle FatigueTropomyosinRabbitsCalciumElectric StimulationMuscle, SmoothConnective Tissue CellsMixed Connective Tissue DiseaseRegional Blood FlowMuscle, Smooth, VascularMuscle DevelopmentMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMitochondria, MuscleMuscle RelaxationMyocardial ContractionTime FactorsUterine ContractionElectromyographyMuscle DenervationMyofibrilsSatellite Cells, Skeletal MuscleHindlimbCells, CulturedMuscular AtrophyRats, WistarMuscular DiseasesRats, Sprague-DawleyOculomotor MusclesRNA, MessengerBiomechanical PhenomenaTendonsActinsCollagenMyocytes, Smooth MuscleGuinea PigsMuscle SpindlesSarcomeresTracheaMyocardiumMuscle CellsQuadriceps MuscleMuscle, StriatedModels, BiologicalImmediate-Early ProteinsIntercellular Signaling Peptides and ProteinsGlycogenMolecular Sequence DataSignal TransductionVasoconstrictionSarcoplasmic ReticulumPhysical ExertionDose-Response Relationship, DrugDiaphragmKineticsMyoblastsMotor NeuronsMuscle WeaknessFibroblastsMyosin Heavy ChainsMice, Inbred C57BLGene FrequencyPhosphorylationPapillary MusclesMyosin Light ChainsAdenosine TriphosphateStress, MechanicalNeck MusclesGene Expression RegulationMicroscopy, ElectronExercisePotassium ChlorideInsulinDogsImmunohistochemistryIsotonic ContractionNeuromuscular JunctionAcetylcholineGlucoseRespiratory MusclesRegenerationPeristalsisAmino Acid SequenceMuscular Dystrophy, AnimalAgingCaffeineAbdominal MusclesCats