Muscle Strength DynamometerMuscle StrengthMuscle, SkeletalMuscle WeaknessIsometric ContractionMusclesHand StrengthRespiratory MusclesTorqueKneeMuscle ContractionQuadriceps MuscleRange of Motion, ArticularMuscle FatigueMuscle ProteinsResistance TrainingMuscle, SmoothMuscle Fibers, SkeletalBiomechanical PhenomenaKnee JointMuscle, Smooth, VascularAnkle JointPhysical EnduranceElbowMuscle DevelopmentElectromyographyExercise TherapyTensile StrengthMuscle Stretching ExercisesLegPhysical FitnessHipExercisePhysical Therapy ModalitiesShoulderWeight LiftingAbdominal MusclesGaitMuscle SpasticityMuscle Fibers, Fast-TwitchPostural BalanceExercise TestWalkingPinch StrengthNeck MusclesBreathing ExercisesGravitationAgingMuscle Fibers, Slow-TwitchMovementSarcopeniaInspiratory CapacityMuscle HypertoniaMuscle DenervationMaximal Voluntary VentilationErgometryMuscle, StriatedNeuromuscular DiseasesTendonsThighShear StrengthProprioceptionMuscular AtrophyTime FactorsReproducibility of ResultsOculomotor MusclesMyocytes, Smooth MuscleHemiplegiaMuscular DiseasesMitochondria, MuscleHandInhalationPosturePhysical ExertionAnalysis of VarianceMuscle RelaxationActivities of Daily LivingExercise ToleranceAnkleRecovery of FunctionMuscle SpindlesHip JointLower ExtremityOsteoarthritis, KneeMusculoskeletal Physiological PhenomenaParesisPain MeasurementDisability EvaluationPapillary MusclesKnee InjuriesBody CompositionDiaphragmCross-Sectional StudiesMobility LimitationRotationCerebral PalsyRespiratory Function TestsMuscular Dystrophy, DuchenneTreatment OutcomeSoccer