Mechanotransduction, CellularStress, MechanicalExercise TestMusclesExercise TherapyMuscle, SkeletalExerciseReflex, StretchExercise ToleranceMuscle ProteinsMuscle, SmoothMuscle ContractionMuscle Fibers, SkeletalPhysical ExertionMuscle, Smooth, VascularMuscle DevelopmentMuscle SpindlesMuscle FatigueOxygen ConsumptionPhysical EnduranceMuscle Fibers, Fast-TwitchMuscle Stretching ExercisesMuscle Fibers, Slow-TwitchMuscle DenervationMitochondria, MuscleTime FactorsMyocytes, Smooth MuscleElectromyographyIsometric ContractionRespiratory MusclesNeck MusclesQuadriceps MuscleOculomotor MusclesHeart RateMuscle RelaxationPulmonary Stretch ReceptorsMuscle WeaknessBiomechanical PhenomenaMuscle, StriatedBicyclingPapillary MusclesAbdominal MusclesRestRunningLegResistance TrainingMasseter MusclePhysical FitnessMechanoreceptorsGlycogenMasticatory MusclesLactic AcidMuscle CellsMuscular AtrophyAdaptation, PhysiologicalHindlimbIntercostal MusclesPulmonary Gas ExchangeElectric StimulationFacial MusclesAnaerobic ThresholdBlood PressureRegional Blood FlowMuscular DiseasesMyofibrilsCells, CulturedSatellite Cells, Skeletal MuscleEnergy MetabolismBreathing ExercisesCatsRats, Sprague-DawleyAnalysis of VariancePectoralis MusclesRabbitsMotor NeuronsPsoas MusclesRNA, MessengerCalciumMolecular Sequence DataSarcomeresMotor Neurons, GammaPhysical Education and TrainingReflexWeight LiftingRats, WistarHeartHand StrengthAgingOxygenMyosin Heavy ChainsMovementPostureRespirationThighInsulinDiaphragmWalkingElasticityMotor ActivityTorque