Neuromuscular DiseasesAutoimmune DiseasesRespiratory InsufficiencyMuscular DystrophiesMyotonic DystrophyHypoventilationMuscular Dystrophy, DuchenneRespiratory MusclesTracheostomyNADH Tetrazolium ReductaseMuscular Atrophy, SpinalNeuromuscular Junction DiseasesMuscular Dystrophy, FacioscapulohumeralTracheotomyRespiratory TherapyRespiration, ArtificialArthrogryposisMyasthenia GravisInsufflationIntermittent Positive-Pressure VentilationAutoimmunityMasksSpinal Muscular Atrophies of ChildhoodMuscular DiseasesHereditary Sensory and Motor NeuropathyMuscle, SkeletalAutoantibodiesPositive-Pressure RespirationLupus Erythematosus, SystemicMyographyVentilators, MechanicalOphthalmoplegiaMyositisMuscle WeaknessAmyotrophic Lateral SclerosisRespiration DisordersGuillain-Barre SyndromeSMN Complex ProteinsSurvival of Motor Neuron 1 ProteinAutoantigensElectric ImpedanceCoughVentilator WeaningDystrophinMuscle Fibers, SkeletalMusclesCharcot-Marie-Tooth DiseaseSleep Apnea SyndromesMuscular AtrophyEncephalomyelitis, Autoimmune, ExperimentalScoliosisDisease Models, AnimalMice, Inbred mdxMucusRespiratory Function TestsVital Capacity