Body Mass IndexBody CompositionMuscle, SkeletalObesityMusclesMuscle ProteinsBody WeightSarcopeniaMuscular AtrophyRisk FactorsMuscle Fibers, SkeletalMuscle, SmoothThinnessMyostatinOverweightMuscle DevelopmentAnthropometryMass SpectrometrySciatic NerveMuscle ContractionCross-Sectional StudiesMuscle, Smooth, VascularAdipose TissueExerciseProspective StudiesAbsorptiometry, PhotonCohort StudiesPeripheral NervesBody HeightAge FactorsOrgan SizeSex FactorsRegression AnalysisWeight LossMuscle StrengthTime FactorsNerve FibersAgingBlood PressureBlood GlucoseOptic NerveBody ConstitutionMuscle Fibers, Fast-TwitchWaist CircumferenceMuscle WeaknessLinear ModelsCase-Control StudiesWaist-Hip RatioMuscle Fibers, Slow-TwitchWeight GainMuscle FatigueInsulin ResistancePrevalenceMuscle DenervationFollow-Up StudiesInsulinLongitudinal StudiesQuadriceps MuscleDietNutritional StatusAdiposityReference ValuesObesity, MorbidMitochondria, MuscleEnergy IntakeBiological MarkersNerve RegenerationEnergy MetabolismHypertensionSkinfold ThicknessSeverity of Illness IndexDiabetes Mellitus, Type 2QuestionnairesMotor ActivityAnalysis of VarianceLogistic ModelsLeptinCardiovascular DiseasesBody SizeSmokingBody Weights and MeasuresMultivariate AnalysisNeck MusclesRetrospective StudiesNerve BlockNerve EndingsSex CharacteristicsIsometric ContractionJapanPredictive Value of TestsLipidsMedian NerveSural NerveUnited StatesMyocytes, Smooth MuscleEuropean Continental Ancestry GroupOdds RatioCachexiaTreatment OutcomeTandem Mass Spectrometry