Relaxation TherapyMeditationMuscle RelaxationMusclesMuscle, SmoothMuscle, SkeletalStress, PsychologicalMuscular Dystrophy, DuchenneMuscle ContractionMuscle, Smooth, VascularMuscle Fibers, SkeletalBiofeedback, PsychologyMyositis, Inclusion BodyMuscle ProteinsDystrophinMuscle WeaknessMuscular DystrophiesPsychoneuroimmunologyMuscular Dystrophy, AnimalMuscular AtrophyAssertivenessMice, Inbred mdxMuscular DiseasesNitric OxideCognitive TherapyVasodilationMuscle DevelopmentMuscle FatigueOccupational Health ServicesTracheaAdaptation, PsychologicalCyclic GMPDeuteroporphyrinsMuscular Atrophy, SpinalAcetylcholineHSP20 Heat-Shock ProteinsNeuromuscular BlockadeNitroprussideCrisis InterventionNeuromuscular Nondepolarizing AgentsElectric StimulationRelaxationVasodilator AgentsMuscle Fibers, Fast-TwitchIsometric ContractionMuscle DenervationPenisMuscle Fibers, Slow-TwitchMuscle TonusRabbitsDose-Response Relationship, DrugCalciumElectromyographyGuinea PigsEndothelium, VascularMyocytes, Smooth MuscleDisease Models, Animal