Dose-Response Relationship, DrugTime FactorsHeart RateBlood PressureCross-Over StudiesRats, Sprague-DawleyRegional Blood FlowDogsHemodynamicsRats, WistarDouble-Blind MethodBlood Flow VelocityRabbitsCalciumKineticsCells, CulturedLiverLightMaximum Tolerated DoseMagnetic Resonance ImagingPain MeasurementReproducibility of ResultsSpectrometry, FluorescenceAlgorithmsExerciseTemperatureFluorescenceFluorescent DyesSensitivity and SpecificityModels, BiologicalMuscle, SkeletalPainMuscle ContractionPhysical ExertionTreatment OutcomeImage Processing, Computer-AssistedOxygen ConsumptionAnalysis of VarianceLikelihood FunctionsHydrogen-Ion ConcentrationComputer SimulationElectric StimulationImage EnhancementModels, StatisticalBiomechanical PhenomenaUltrasonic TherapyLasersContrast MediaImmunohistochemistryModels, TheoreticalRadiotherapy, Intensity-ModulatedElectromyographyScattering, RadiationImage Interpretation, Computer-AssistedMolecular Sequence DataBrainProspective StudiesIsometric ContractionUltrasonicsHot TemperatureAcoustic StimulationCattleOxygenLoudness PerceptionExercise TestPhysical EnduranceEquipment DesignAction PotentialsImaging, Three-DimensionalMusclesSoundHigh-Intensity Focused Ultrasound AblationSeasonsWaterDrug Administration ScheduleParasite Egg CountReference ValuesRetrospective StudiesMicroscopy, FluorescenceMathematicsAdaptation, PhysiologicalPressurePhantoms, ImagingSensory ThresholdsSpectrophotometryMagnetic Resonance SpectroscopyRegression AnalysisSpecies SpecificityDose-Response Relationship, RadiationArea Under CurveCalibrationPhotosynthesisPhysical FitnessDark AdaptationSwineStatistics, NonparametricColorTaste ThresholdAdaptation, OcularPhysical Stimulation