DyspneaPhysical ExertionMeigs SyndromeExercise ToleranceExercise TestRespiratory Function TestsMyxomaHeart NeoplasmsPulmonary Disease, Chronic ObstructiveRespiratory MechanicsHeat StrokeForced Expiratory VolumeOxygen ConsumptionRhabdomyolysisExerciseEchocardiographyTomography, X-Ray ComputedHeart FailureHeat ExhaustionTreatment OutcomeHeat Stress DisordersDyspnea, ParoxysmalRespiratory MusclesAngina PectorisImmersionSeverity of Illness IndexCompartment SyndromesSpirometryWalkingPhysical EnduranceHeart RateChest PainHemoglobinuriaVascular HeadachesVital CapacityPerceptionLung Diseases, ObstructiveBethanidineMyoglobinuriaHeadache Disorders, PrimaryMuscle CrampFatal OutcomeLungCross-Over StudiesOrgasmRunningClopenthixolRadiography, ThoracicGlycogen Storage Disease Type VIIMilitary PersonnelCoughAirway ObstructionHydrotherapyQuestionnairesOxygen Inhalation TherapyQuality of LifeElectrocardiographyProspective StudiesInspiratory CapacityPulmonary VentilationRespirationBody Temperature RegulationDouble-Blind MethodLung Diseases, InterstitialBicyclingTime FactorsHypertension, PulmonaryFatigueHemodynamicsChronic DiseaseBreathing Exercises