Muscle ContractionIsometric ContractionMuscle, SkeletalTorqueTarsus, AnimalMuscle FatigueExerciseMuscle StrengthExercise TestMuscle Fibers, SkeletalPhysical ExertionExercise TherapyMice, Inbred mdxMuscular Dystrophy, AnimalElectric StimulationElectromyographyQuadriceps MuscleMuscular Dystrophy, DuchenneDesminExcitation Contraction CouplingBiomechanical PhenomenaExercise ToleranceMuscle ProteinsStress, MechanicalHindlimbTime FactorsDystrophinIsotonic ContractionMyocardial ContractionMice, Inbred ICRUterine ContractionPhysical EnduranceOxygen ConsumptionRats, WistarRats, Sprague-DawleyMuscle, SmoothMusclesMice, Inbred C57BLHeart RateElbowKneeVasoconstrictionResistance TrainingMuscle RelaxationCalciumLegTendinopathyRunningBicyclingMuscle Stretching ExercisesWeight LiftingAdaptation, PhysiologicalVolitionRestSarcomeresBlood PressurePhysical FitnessMusculoskeletal Physiological PhenomenaHand StrengthMuscle, Smooth, VascularGuinea PigsThighAnalysis of VarianceCreatine KinaseNorepinephrineLactic AcidRecruitment, NeurophysiologicalElbow JointMuscular DiseasesRabbitsPhysical Education and TrainingPotassium ChlorideHeartDose-Response Relationship, DrugVasoconstrictor AgentsRegional Blood FlowAchilles TendonMovementMotor NeuronsMuscle Strength DynamometerMyosinsAcetylcholineTendonsDogsPhosphocreatineAnkle JointPhenylephrineTracheaEnergy MetabolismGlycogenMuscle TonusKnee JointMuscle Fibers, Fast-TwitchForearmArmAnaerobic ThresholdPapillary MusclesVasodilationRana temporariaExercise Movement Techniques