Isometric ContractionTorqueElectromyographyMuscle, SkeletalMuscle StrengthMuscle FatigueMuscle ContractionQuadriceps MuscleRecruitment, NeurophysiologicalFatigueKneeVolitionMotor NeuronsFemoral NerveElectric StimulationElbowMusclesHandBiomechanical PhenomenaLegPhysical EnduranceMaximal Voluntary VentilationIsotonic ContractionTime FactorsPhysical ExertionThighExerciseMuscle WeaknessHand StrengthFatigue Syndrome, ChronicMuscle Fibers, SkeletalMental FatigueEvoked Potentials, MotorKnee JointMyocardial ContractionFingersForearmElbow JointAnkle JointUterine ContractionMusculoskeletal Physiological PhenomenaMotor CortexMuscle RelaxationMuscle Strength DynamometerSarcomeresMovementVoluntary ProgramsThumbArmMuscle, SmoothReflex, StretchPhosphocreatineMyosinsPsoas MusclesStress, MechanicalTranscranial Magnetic StimulationH-ReflexTendonsAdaptation, PhysiologicalPapillary MusclesHeart RateReflexAnalysis of VarianceWeight-BearingAction PotentialsCalciumRana temporariaVasoconstrictionAnkleFootPeroneal NerveMyographyVibrationMuscle SpindlesBlood Pressure