Muscle, SkeletalMuscular DiseasesPulmonary Disease, Chronic ObstructiveExercise ToleranceExercise TherapyMuscle WeaknessRespiratory MusclesMuscle Fibers, SkeletalMusclesMuscle ContractionDiaphragmMuscle FatigueQuadriceps MuscleMuscular AtrophyMitochondria, MuscleMuscle, SmoothMuscle ProteinsMuscle StrengthPapillary MusclesMuscle DevelopmentPhosphocreatineMuscle Fibers, Fast-TwitchMuscle, Smooth, VascularMuscle Fibers, Slow-TwitchOxidative StressMitral Valve InsufficiencyRespiratory Function TestsTime FactorsDisease Models, AnimalSatellite Cells, Skeletal MuscleMuscle DenervationMice, Inbred C57BLRats, Sprague-DawleyRabbitsVentricular Dysfunction, LeftErectile DysfunctionMuscle CellsMyofibrilsMyoblastsIsometric ContractionMyocytes, Smooth MuscleGlycogenCalciumHindlimbMuscle, StriatedMuscle RelaxationInsulinOculomotor MusclesMyocardiumMyosin Heavy ChainsMyoblasts, SkeletalRNA, MessengerNeck MusclesCells, CulturedMuscle SpindlesRats, WistarGlucoseMyoD ProteinSarcoplasmic ReticulumMyostatinRegenerationMuscular Dystrophy, AnimalMice, Inbred mdxAbdominal MusclesExerciseElectric StimulationPhysical ExertionAgingSignal TransductionGene Expression RegulationOxygen ConsumptionSarcolemmaMasseter MusclePhysical Conditioning, AnimalElectromyographySarcomeresInsulin ResistanceKineticsGlucose Transporter Type 4Citrate (si)-SynthaseMice, KnockoutDystrophinMasticatory MusclesCreatine KinasePsoas MusclesRyanodine Receptor Calcium Release ChannelEnergy MetabolismSkeletal Muscle MyosinsMyogeninIntercostal MusclesFacial MusclesMolecular Sequence DataPhysical EnduranceActinsMice, TransgenicAdenosine TriphosphateHypertrophyPhosphorylationRegional Blood FlowPectoralis Muscles