Muscle, SkeletalBody Mass IndexMusclesMuscle Fibers, SkeletalMuscle ProteinsMuscle, SmoothObesityMuscle ContractionMuscle DevelopmentMuscle, Smooth, VascularMuscle Fibers, Fast-TwitchMitochondria, MuscleMuscle Fibers, Slow-TwitchMuscle FatigueMuscle DenervationRisk FactorsBody WeightOverweightSatellite Cells, Skeletal MuscleBody CompositionExerciseMuscular AtrophyTime FactorsCross-Sectional StudiesMyocytes, Smooth MuscleAnthropometryMuscle WeaknessQuadriceps MuscleInsulinOculomotor MusclesMuscle, StriatedNeck MusclesMuscular DiseasesMuscle RelaxationMuscle CellsRespiratory MusclesProspective StudiesCohort StudiesMuscle SpindlesInsulin ResistanceThinnessBlood GlucoseAdipose TissueIsometric ContractionAge FactorsRabbitsPapillary MusclesAbdominal MusclesBody HeightMyofibrilsBlood PressureSex FactorsWaist CircumferenceHindlimbCase-Control StudiesWeight LossRegression AnalysisWaist-Hip RatioCalciumGlycogenLinear ModelsMasseter MuscleMyoblastsPrevalenceEnergy MetabolismBody ConstitutionElectromyographyMyosin Heavy ChainsReference ValuesAgingDiabetes Mellitus, Type 2Masticatory MusclesFacial MusclesIntercostal MusclesMass SpectrometryWeight GainFollow-Up StudiesRNA, MessengerHypertensionObesity, MorbidPhysical ExertionOxygen ConsumptionBiological MarkersDietCells, CulturedPectoralis MusclesLongitudinal StudiesGlucoseMyostatinSeverity of Illness IndexAnalysis of VarianceMyoblasts, SkeletalMotor ActivityElectric StimulationQuestionnairesMyoD ProteinPsoas MusclesLogistic ModelsDiaphragmSmoking