High-Intensity Focused Ultrasound AblationUltrasonic TherapyTransducersAcousticsErgometryExerciseUltrasound, High-Intensity Focused, TransrectalMagnetic Resonance ImagingUltrasonicsMagnetic Resonance Imaging, InterventionalTime FactorsPhysical Education and TrainingRunningThermal ConductivityThermographyPhysical ExertionPhysical EnduranceTransducers, PressureResistance TrainingLightMuscle, SkeletalOxygen ConsumptionPhysical Conditioning, AnimalNeck MusclesPhantoms, ImagingExercise TherapyHigh-Energy Shock WavesBicyclingLightingExercise TestVolitionMuscle FatigueExercise ToleranceLactic AcidUltrasonographyLasersMicrobubblesSubcutaneous TissuePhysical FitnessHyperthermia, InducedArthropod ProteinsHot TemperatureSportsLactatesShoulderMuscle ContractionAtrial FunctionEquipment DesignPainTreatment OutcomePain MeasurementElectric StimulationColorHeart RateEfficiencyPressureDose-Response Relationship, RadiationContrast MediaReproducibility of ResultsBrainVibrationMuscle StrengthElectromyographyRandom AllocationAnalysis of VarianceAcoustic StimulationEnergy MetabolismTomography, X-Ray ComputedModels, BiologicalComputersProspective StudiesFeasibility StudiesSensitivity and SpecificityBiomechanical PhenomenaTemperatureAlgorithmsReference ValuesMusclesRats, Sprague-DawleyQuestionnairesSpinal CordOxygenCatsAutonomic Nervous SystemComputer SimulationRabbitsBlood PressurePropranololMotor ActivityRisk FactorsSwineKineticsMultivariate AnalysisSpectrometry, FluorescenceFluorescent DyesFluorescenceImage Processing, Computer-AssistedImage EnhancementImmunohistochemistryRadiotherapy, Intensity-Modulated