Muscle StrengthMuscle Strength DynamometerTorqueMuscle, SkeletalKnee JointIsometric ContractionMuscle WeaknessKneeMusclesMuscle ContractionHand StrengthQuadriceps MuscleRange of Motion, ArticularRespiratory MusclesMuscle FatigueBiomechanical PhenomenaErgometryResistance TrainingPhysical EnduranceAnkle JointMuscle ProteinsExercise TherapyIsotonic ContractionElectromyographyMuscle Stretching ExercisesLegMuscle, SmoothWeight LiftingElbowMuscle Fibers, SkeletalShoulderHipThighExerciseMuscle SpasticityMuscle, Smooth, VascularPhysical FitnessExercise TestPhysical Therapy ModalitiesMovementMuscle DevelopmentGravitationGaitKnee InjuriesTensile StrengthTendonsPostural BalanceAnkleWalkingHemiplegiaNeuromuscular DiseasesProprioceptionSoccerMusculoskeletal Physiological PhenomenaAgingAnterior Cruciate LigamentRotationAbdominal MusclesPhysical ExertionAnalysis of VarianceMuscle Fibers, Fast-TwitchReproducibility of ResultsShort-Wave TherapyPhysical Education and TrainingMuscular DiseasesPinch StrengthNeck MusclesBreathing ExercisesRecovery of FunctionLower ExtremityMuscle Fibers, Slow-TwitchTime FactorsOsteoarthritis, KneeSarcopenia