Hammer Toe SyndromeQuadriceps MuscleBrachial Plexus NeuropathiesMusclesMuscle, SkeletalThighMuscle ContractionMuscle FatigueMuscle ProteinsMuscle WeaknessMuscle StrengthMuscle Fibers, SkeletalMuscle, SmoothIsometric ContractionTorqueMuscle, Smooth, VascularKneeElectromyographyKnee JointFemoral NerveMuscle DevelopmentMuscle Strength DynamometerMuscle Fibers, Slow-TwitchMuscular AtrophyElectric Stimulation TherapyRespiratory MusclesExerciseMitochondria, MusclePatellaMuscular DiseasesLegMuscle Fibers, Fast-TwitchBiomechanical PhenomenaMuscle DenervationAnterior Cruciate LigamentAllelic ImbalanceKnee InjuriesPatellar LigamentMyocytes, Smooth MuscleElectric StimulationTendonsJoggingMuscle SpindlesPhysical EnduranceNeck MusclesOculomotor MusclesImmobilizationMuscle RelaxationArtificial OrgansAbdominal MusclesOxygen ConsumptionMuscle, StriatedMyostatinPhysical ExertionPapillary MusclesOsteoarthritis, KneeWeight LiftingPatellofemoral JointTime FactorsWeight-BearingBicyclingRange of Motion, ArticularJoint InstabilityMuscle CellsMotor NeuronsExercise TestGaitMasseter MuscleFacial MusclesMasticatory MusclesPatellofemoral Pain SyndromeIntercostal MusclesExercise TherapyGlycogenAdaptation, PhysiologicalLactic AcidArthroplasty, Replacement, KneePulmonary Disease, Chronic ObstructiveHypertrophySatellite Cells, Skeletal MuscleRecovery of FunctionBiopsyPectoralis MusclesOrgan SizeRegional Blood FlowAnalysis of VarianceHindlimbAgingMyofibrilsParaplegiaDiaphragmMyosin Heavy ChainsPsoas MusclesMotor ActivityTemporal MuscleRabbitsSeminiferous EpitheliumMice, Inbred C57BLFemurPain