Body Mass IndexAtrophyMuscular AtrophyMuscle, SkeletalMusclesObesityMuscle ProteinsSarcopeniaRisk FactorsBody CompositionMuscle Fibers, SkeletalBody WeightMyostatinMuscle, SmoothMass SpectrometryMuscle DevelopmentOverweightAnthropometryMuscle ContractionCross-Sectional StudiesMuscle, Smooth, VascularProspective StudiesExerciseCohort StudiesOrgan SizeThinnessAge FactorsTime FactorsBody HeightOptic AtrophySex FactorsAbsorptiometry, PhotonAdipose TissueMuscle Fibers, Fast-TwitchAgingMuscle StrengthRegression AnalysisMuscle DenervationMuscle WeaknessMuscular Atrophy, SpinalCase-Control StudiesWeight LossMuscle Fibers, Slow-TwitchWaist CircumferenceLinear ModelsBlood PressureBody ConstitutionFollow-Up StudiesPrevalenceMuscle FatigueWaist-Hip RatioBlood GlucoseLongitudinal StudiesMuscular Disorders, AtrophicQuadriceps MuscleWeight GainSeverity of Illness IndexBiological MarkersMitochondria, MuscleInsulin ResistanceNutritional StatusHindlimb SuspensionReference ValuesObesity, MorbidDietHypertensionLogistic ModelsQuestionnairesInsulinAnalysis of VarianceAdiposityMotor ActivitySkinfold ThicknessCardiovascular DiseasesMultiple System AtrophySmokingDiabetes Mellitus, Type 2Retrospective StudiesEnergy IntakeBody SizeMultivariate AnalysisEnergy MetabolismBody Weights and MeasuresNeck MusclesPredictive Value of TestsTreatment OutcomeIsometric ContractionJapanOdds RatioHypertrophyUnited StatesCachexiaRisk AssessmentSex CharacteristicsMyocytes, Smooth MuscleMagnetic Resonance ImagingEuropean Continental Ancestry GroupLeptinTandem Mass SpectrometryRespiratory Muscles