Muscle RigidityMusclesElasticityMuscle, SkeletalReflex, StretchBiomechanical PhenomenaMuscle ContractionMyotoniaMyotonia CongenitaMyotonic DisordersIsometric ContractionAnkle JointAnkleElectromyographyMuscle ProteinsMuscle, SmoothStress, MechanicalMuscle Fibers, SkeletalMuscle, Smooth, VascularRange of Motion, ArticularMuscle DevelopmentModels, BiologicalMuscle FatigueMuscle Fibers, Fast-TwitchMuscle DenervationMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleMitochondria, MuscleNeck MusclesMuscle RelaxationOculomotor MusclesMuscle SpindlesPapillary MusclesElastic ModulusMuscle, StriatedMuscle WeaknessRespiratory MusclesPulse Wave AnalysisQuadriceps MuscleElasticity Imaging TechniquesArteriesMuscle CellsAbdominal MusclesMasticatory MusclesPulsatile FlowComplianceMasseter MuscleFacial MusclesIntercostal MusclesMuscular AtrophyAortaMuscular DiseasesSarcomeresSatellite Cells, Skeletal MuscleMyofibrilsTime FactorsPectoralis MusclesRabbitsPsoas MusclesPulseTorqueBlood PressureHindlimbCells, CulturedElectric StimulationCalciumTendonsTemporal MuscleCarotid ArteriesWeight-BearingTensile StrengthActinsMyosin Heavy ChainsAgingVascular ResistanceMovementDiaphragmPharyngeal MusclesRats, Sprague-DawleyMuscle Stretching ExercisesMechanical ProcessesMyocardiumMotor NeuronsBlood Flow VelocityLegNeuromuscular JunctionMuscle CrampFinite Element AnalysisGlycogenRats, WistarMyoblastsRNA, MessengerExerciseMuscular Dystrophy, AnimalDogsPhysical ExertionMuscle SpasticityPliabilityPostureMicroscopy, Atomic Force