Muscle Strength DynamometerFatigueMuscle FatigueMuscle StrengthFatigue Syndrome, ChronicMental FatigueIsometric ContractionTorqueKneeHand StrengthMuscle, SkeletalRange of Motion, ArticularMuscle ContractionMuscle WeaknessAnkle JointElbowBiomechanical PhenomenaGravitationKnee JointPinch StrengthQuadriceps MuscleMuscle HypertoniaMuscle Stretching ExercisesShoulderPhysical Therapy ModalitiesHipPhysical EnduranceElectromyographyErgometryReproducibility of ResultsMovementHandRotationMuscle SpasticityEquipment DesignSoccerGaitExerciseExercise TherapyLegTendonsPhysical ExertionHemiplegiaExercise TestProprioceptionResistance TrainingAnklePostureMusclesPhysical FitnessPain MeasurementCerebral PalsyAnalysis of VarianceKnee InjuriesParesisDisability EvaluationActivities of Daily LivingPostural BalanceWalkingReference ValuesHip JointCross-Sectional StudiesTime FactorsElasticityRecovery of FunctionTreatment OutcomeAgingQuality of LifeSeverity of Illness IndexQuestionnairesSleep DisordersFibromyalgiaOsteoarthritis, KneeAsthenopiaDepressionPainNeoplasmsDiaphragmPostpoliomyelitis SyndromeElectric Stimulation