MusclesArmMuscle, SkeletalElectromyographyMuscle ProteinsMuscle, SmoothMuscle Fibers, SkeletalMuscle, Smooth, VascularMuscle ContractionMuscle DevelopmentMuscle FatigueMuscle Fibers, Fast-TwitchMuscle DenervationMuscle Fibers, Slow-TwitchTenodesisMyocytes, Smooth MuscleMitochondria, MuscleMuscle SpindlesNeck MusclesOculomotor MusclesMuscle WeaknessMuscle, StriatedElbowMuscle RelaxationRespiratory MusclesPapillary MusclesIsometric ContractionQuadriceps MuscleMasseter MuscleAbdominal MusclesMuscle CellsTendonsPectoralis MusclesFacial MusclesMasticatory MusclesIntercostal MusclesSupinationTendon InjuriesMuscular AtrophyMuscular DiseasesSatellite Cells, Skeletal MuscleBiomechanical PhenomenaElectric StimulationHindlimbMotor NeuronsReflex, StretchElbow JointPsoas MusclesTime FactorsArm InjuriesMyofibrilsTemporal MuscleRotator CuffRabbitsRuptureTenotomyCells, CulturedShoulderMyosin Heavy ChainsCalciumLegPharyngeal MusclesNeuromuscular JunctionDiaphragmThighTorqueReflexShoulder JointMuscle SpasticityMovementGlycogenPhysical ExertionRats, Sprague-DawleyForelimbMuscular Dystrophy, AnimalMyoblastsRNA, MessengerMuscle CrampExerciseActinsBrachial PlexusPhysical EnduranceDeltoid MuscleRats, WistarCatsRecruitment, NeurophysiologicalMeatRegenerationMice, Inbred mdxMusculocutaneous NerveSarcomeresMyostatinMyoD ProteinTendinopathyAgingMuscle Stretching ExercisesMyocardiumMuscle RigidityWeight LiftingAction Potentials