Body Mass IndexMuscle, SkeletalObesityMusclesMuscle ProteinsSarcopeniaBody CompositionRisk FactorsMuscular AtrophyMuscle Fibers, SkeletalBody WeightMuscle, SmoothMyostatinMass SpectrometryOverweightMuscle DevelopmentAnthropometryCross-Sectional StudiesMuscle ContractionMuscle, Smooth, VascularExerciseProspective StudiesCohort StudiesThinnessBody HeightAge FactorsAbsorptiometry, PhotonSex FactorsAdipose TissueTime FactorsOrgan SizeRegression AnalysisMuscle StrengthWeight LossMuscle Fibers, Fast-TwitchWaist CircumferenceBody ConstitutionLinear ModelsMuscle WeaknessMuscle Fibers, Slow-TwitchAgingCase-Control StudiesWaist-Hip RatioBlood PressureMuscle FatigueMuscle DenervationPrevalenceBlood GlucoseFollow-Up StudiesWeight GainLongitudinal StudiesQuadriceps MuscleInsulin ResistanceNutritional StatusMitochondria, MuscleObesity, MorbidBiological MarkersSeverity of Illness IndexHypertensionDietQuestionnairesLogistic ModelsReference ValuesInsulinAdipositySkinfold ThicknessCardiovascular DiseasesSmokingMotor ActivityDiabetes Mellitus, Type 2Body SizeEnergy IntakeAnalysis of VarianceMultivariate AnalysisEnergy MetabolismBody Weights and MeasuresRetrospective StudiesNeck MusclesJapanIsometric ContractionMyocytes, Smooth MuscleOdds RatioUnited StatesPredictive Value of TestsEuropean Continental Ancestry GroupRisk AssessmentTandem Mass SpectrometrySex CharacteristicsLeptinTreatment OutcomeRespiratory MusclesSpectrometry, Mass, Electrospray IonizationHindlimb SuspensionHypertrophyCachexiaLipidsThighPhysical FitnessOculomotor MusclesMuscular Disorders, Atrophic