Muscle ContractionMuscle, SkeletalVitaminsDietary SupplementsMuscle Fibers, SkeletalVitamin B ComplexVitamin EIsometric ContractionAvitaminosisMusclesVitamin B 12Vitamin ATroponin CTroponinMuscle ProteinsAscorbic AcidFolic AcidMyosinsMuscle Fatiguebeta CaroteneTropomyosinHomocysteineCalciumPyridoxineNeural Tube DefectsRabbitsElectric StimulationMuscle, SmoothVitamin B 6Vitamin DPreconception CareRegional Blood FlowAntioxidantsHyperhomocysteinemiaVitamin A DeficiencyGuanineMethylmalonic AcidGlutamatesMuscle, Smooth, VascularMuscle DevelopmentDouble-Blind MethodVitamin D DeficiencyMuscle Fibers, Fast-TwitchPregnancyMuscle Fibers, Slow-TwitchMitochondria, MusclePrenatal CareMuscle RelaxationMyocardial ContractionUterine ContractionMuscle DenervationTime FactorsElectromyographyVitamin E DeficiencySatellite Cells, Skeletal MuscleMyofibrilsVitamin K 1Muscular AtrophyRats, WistarRats, Sprague-DawleyMuscular DiseasesHindlimbVitamin B 12 DeficiencyCholecalciferolDose-Response Relationship, DrugInfant, NewbornMuscle SpindlesMyocytes, Smooth MuscleGlycogenGuinea PigsQuadriceps MuscleMuscle CellsMuscle, StriatedSarcomeresFood, FortifiedDietPhysical ExertionActinsVasoconstrictionCells, CulturedTracheaMyocardiumVitamin K DeficiencyRNA, MessengerSarcoplasmic ReticulumInsulinMuscle WeaknessKineticsExerciseVitamin B 6 DeficiencyMyoblastsMyosin Heavy ChainsAdenosine TriphosphateBody WeightBiomechanical PhenomenaPotassium ChlorideDiaphragmMyosin Light ChainsRisk FactorsPapillary Muscles