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Search Results to Roger M Enoka

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Enoka, Roger

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Item Type	Name
Academic Article	Isometric torque-angle relationship and movement-related activity of human elbow flexors: implications for the equilibrium-point hypothesis.
Academic Article	Contractions of single motor units are reflected in membrane potential changes of homonymous alpha-motoneurons.
Academic Article	Can Ib axons be selectively activated by electrical stimuli in human subjects?
Academic Article	Muscular control of a learned movement: the speed control system hypothesis.
Academic Article	Reduced motor unit activation of muscle spindles and tendon organs in the immobilized cat hindlimb.
Academic Article	Adaptive properties of the sensorimotor system.
Academic Article	Training-related enhancement in the control of motor output in elderly humans.
Academic Article	Reduced control of motor output in a human hand muscle of elderly subjects during submaximal contractions.
Academic Article	Impairment of neuromuscular propagation during human fatiguing contractions at submaximal forces.
Academic Article	Neurobiology of muscle fatigue. Advances and issues.
Academic Article	The scientific contributions of Brenda Bigland-Ritchie.
Academic Article	Morphological features and activation patterns of motor units.
Academic Article	Eccentric contractions require unique activation strategies by the nervous system.
Academic Article	Older adults can maximally activate the biceps brachii muscle by voluntary command.
Academic Article	Neural strategies in the control of muscle force.
Academic Article	Limitations of the surface electromyography technique for estimating motor unit synchronization.
Academic Article	Behavior of motor units in human biceps brachii during a submaximal fatiguing contraction.
Academic Article	Sensitivity of muscle proton spin-spin relaxation time as an index of muscle activation.
Academic Article	Fatigue-related changes in motor unit action potentials of adult cats.
Academic Article	Motor unit behavior in Parkinson's disease.
Academic Article	Motor-unit synchronization increases EMG amplitude and decreases force steadiness of simulated contractions.
Academic Article	Task- and age-dependent variations in steadiness.
Academic Article	Strength training improves the steadiness of slow lengthening contractions performed by old adults.
Academic Article	Older adults use a unique strategy to lift inertial loads with the elbow flexor muscles.
Academic Article	Motor-unit synchronization is not responsible for larger motor-unit forces in old adults.
Academic Article	Motor unit physiology: some unresolved issues.
Academic Article	Neural adaptations with chronic physical activity.
Academic Article	Long-term activity in upper- and lower-limb muscles of humans.
Academic Article	Relative activation of two human elbow flexors under isometric conditions: a cautionary note concerning flexor equivalence.
Academic Article	Stimulus-related correlations between medial gastrocnemius muscle tension and homonymous motoneuron membrane potential result from non-linearities.
Academic Article	Fluctuations in acceleration during voluntary contractions lead to greater impairment of movement accuracy in old adults.
Academic Article	Motor-unit coherence during isometric contractions is greater in a hand muscle of older adults.
Academic Article	The extraction of neural strategies from the surface EMG.
Academic Article	The 1- to 2-Hz oscillations in muscle force are exacerbated by stress, especially in older adults.
Academic Article	Men are more fatigable than strength-matched women when performing intermittent submaximal contractions.
Academic Article	Fatigue of rat hindlimb motor units: biochemical-physiological associations.
Academic Article	Practice reduces motor unit discharge variability in a hand muscle and improves manual dexterity in old adults.
Academic Article	Motor-unit activity differs with load type during a fatiguing contraction.
Academic Article	Net excitation of the motor unit pool varies with load type during fatiguing contractions.
Academic Article	Prolonged muscle vibration increases stretch reflex amplitude, motor unit discharge rate, and force fluctuations in a hand muscle.
Academic Article	Discharge rate variability influences the variation in force fluctuations across the working range of a hand muscle.
Academic Article	Muscle endurance is greater for old men compared with strength-matched young men.
Academic Article	Prolonged vibration of the biceps brachii tendon reduces time to failure when maintaining arm position with a submaximal load.
Academic Article	Variability of motor unit discharge and force fluctuations across a range of muscle forces in older adults.
Academic Article	Central modulation of motor unit activity.
Academic Article	Amplitude cancellation reduces the size of motor unit potentials averaged from the surface EMG.
Academic Article	Maximum bilateral contractions are modified by neurally mediated interlimb effects.
Academic Article	Frequency modulation of motor unit discharge has task-dependent effects on fluctuations in motor output.
Academic Article	Time to task failure varies with the gain of the feedback signal for women, but not for men.
Academic Article	Accessory muscle activity contributes to the variation in time to task failure for different arm postures and loads.
Academic Article	Rate coding is compressed but variability is unaltered for motor units in a hand muscle of old adults.
Academic Article	Time to failure of a sustained contraction is predicted by target torque and initial electromyographic bursts in elbow flexor muscles.
Academic Article	Strength training for exercise performance and rehabilitation.
Academic Article	Different neural adjustments improve endpoint accuracy with practice in young and old adults.
Academic Article	Reflex responsiveness of a human hand muscle when controlling isometric force and joint position.
Academic Article	Muscle fatigue: what, why and how it influences muscle function.
Academic Article	Practice and endpoint accuracy with the left and right hands of old adults: the right-hemisphere aging model.
Academic Article	Spinal mechanisms contribute to differences in the time to failure of submaximal fatiguing contractions performed with different loads.
Academic Article	Detecting the unique representation of motor-unit action potentials in the surface electromyogram.
Academic Article	Motor unit recruitment and bursts of activity in the surface electromyogram during a sustained contraction.
Academic Article	Motor unit recruitment in human biceps brachii during sustained voluntary contractions.
Academic Article	A spinal pathway between synergists can modulate activity in human elbow flexor muscles.
Academic Article	Force development and relaxation in single motor units of adult cats during a standard fatigue test.
Academic Article	Common input to different regions of biceps brachii long head.
Academic Article	Pronation-supination torque and associated electromyographic activity varies during a sustained elbow flexor contraction but does not influence the time to task failure.
Academic Article	Presynaptic modulation of Ia afferents in young and old adults when performing force and position control.
Academic Article	Muscle activity differs with load compliance during fatiguing contractions with the knee extensor muscles.
Academic Article	Comparison of the influence of two stressors on steadiness during index finger abduction.
Academic Article	Changes in muscle fascicles of tibialis anterior during anisometric contractions are not associated with motor-output variability of the ankle dorsiflexors in young and old adults.
Academic Article	Aging and movement errors when lifting and lowering light loads.
Academic Article	Muscle activity and time to task failure differ with load compliance and target force for elbow flexor muscles.
Academic Article	Unraveling the neurophysiology of muscle fatigue.
Academic Article	Discharge characteristics of biceps brachii motor units at recruitment when older adults sustained an isometric contraction.
Academic Article	Neurobiology of muscle fatigue.
Academic Article	Practicing a functional task improves steadiness with hand muscles in older adults.
Academic Article	Limb immobilization alters muscle activation patterns during a fatiguing isometric contraction.
Academic Article	Neuromuscular adjustments that constrain submaximal EMG amplitude at task failure of sustained isometric contractions.
Academic Article	Task- and time-dependent modulation of Ia presynaptic inhibition during fatiguing contractions performed by humans.
Academic Article	Sex differences in the fatigability of arm muscles depends on absolute force during isometric contractions.
Academic Article	Muscle fatigue--from motor units to clinical symptoms.
Academic Article	Influence of amplitude cancellation on the accuracy of determining the onset of muscle activity from the surface electromyogram.
Academic Article	Motor unit recruitment strategies and muscle properties determine the influence of synaptic noise on force steadiness.
Academic Article	Influence of neural adjustments and muscle oxygenation on task failure during sustained isometric contractions with elbow flexor muscles.
Academic Article	Activation order of motor axons in electrically evoked contractions.
Academic Article	Long-range correlations in motor unit discharge times at low forces are modulated by visual gain and age.
Academic Article	PET/CT imaging of age- and task-associated differences in muscle activity during fatiguing contractions.
Academic Article	Sympathetic activation is associated with increases in EMG during fatiguing exercise.
Academic Article	Activation of muscle fibers in individual motor units revealed by 2-deoxyglucose-6-phosphate.
Academic Article	Kinematic assessment of a functional role for recurrent inhibition and selective recruitment.
Academic Article	Task differences with the same load torque alter the endurance time of submaximal fatiguing contractions in humans.
Academic Article	Mechanisms that contribute to differences in motor performance between young and old adults.
Academic Article	Activation among the elbow flexor muscles differs when maintaining arm position during a fatiguing contraction.
Academic Article	Multiple features of motor-unit activity influence force fluctuations during isometric contractions.
Academic Article	Changes in excitability of tendon tap and Hoffmann reflexes following voluntary contractions.
Academic Article	Linear and non-linear summation of alpha-motoneuron potential changes elicited by contractions of homonymous motor units in cat medial gastrocnemius.
Academic Article	Activation history and constant errors in human force production.
Academic Article	Changes in movement capabilities with aging.
Academic Article	Fatigability of the elbow flexor muscles for a sustained submaximal contraction is similar in men and women matched for strength.
Academic Article	Short-term immobilization has a minimal effect on the strength and fatigability of a human hand muscle.
Academic Article	Strength training reduces force fluctuations during anisometric contractions of the quadriceps femoris muscles in old adults.
Academic Article	Association between muscle architecture and quadriceps femoris H-reflex.
Academic Article	The influence of age on the assessment of motor unit activation in a human hand muscle.
Academic Article	Influence of amplitude cancellation on the simulated surface electromyogram.
Academic Article	Task-dependent effect of limb immobilization on the fatigability of the elbow flexor muscles in humans.
Academic Article	Coherence at 16-32 Hz can be caused by short-term synchrony of motor units.
Academic Article	Time to task failure differs with load type when old adults perform a submaximal fatiguing contraction.
Academic Article	Muscle activation and time to task failure differ with load type and contraction intensity for a human hand muscle.
Academic Article	Influence of motor unit properties on the size of the simulated evoked surface EMG potential.
Academic Article	Diminished task-related adjustments of common inputs to hand muscle motor neurons in older adults.
Academic Article	Steadiness training with light loads in the knee extensors of elderly adults.
Academic Article	Gender differences in the fatigability of human skeletal muscle.
Academic Article	Steadiness is reduced and motor unit discharge is more variable in old adults.
Academic Article	Strength training can improve steadiness in persons with essential tremor.
Academic Article	Coactivation of the antagonist muscle does not covary with steadiness in old adults.
Academic Article	Sensitivity of the cross-correlation between simulated surface EMGs for two muscles to detect motor unit synchronization.
Academic Article	Discharge rate during low-force isometric contractions influences motor unit coherence below 15 Hz but not motor unit synchronization.
Academic Article	Motor-unit synchronization alters spike-triggered average force in simulated contractions.
Academic Article	Nonuniform activation of the agonist muscle does not covary with index finger acceleration in old adults.
Academic Article	Immobilization-induced changes in motor unit force and fatigability in the cat.
Academic Article	Muscle fatigue and the mechanisms of task failure.
Academic Article	Influence of aging on sex differences in muscle fatigability.
Academic Article	Fluctuations in motor output during steady contractions are weakly related across contraction types and between hands.
Academic Article	Task failure during fatiguing contractions performed by humans.
Academic Article	Fluctuations in motor output of a hand muscle can be altered by the mechanical properties of the position sensor.
Academic Article	Training adaptations in the behavior of human motor units.
Academic Article	Discharge variability of motor units in an intrinsic muscle of transplanted hand.
Academic Article	Amplitude cancellation of motor-unit action potentials in the surface electromyogram can be estimated with spike-triggered averaging.
Academic Article	Reflex inhibition in human biceps brachii decreases with practice of a fatiguing contraction.
Academic Article	Adjustments differ among low-threshold motor units during intermittent, isometric contractions.
Academic Article	Heteronymous reflex responses in a hand muscle when maintaining constant finger force or position at different contraction intensities.
Academic Article	Load type influences motor unit recruitment in biceps brachii during a sustained contraction.
Academic Article	Influence of load type on presynaptic modulation of Ia afferent input onto two synergist muscles.
Academic Article	The interpolated twitch and the force capacity of muscle.
Academic Article	Timing variability and not force variability predicts the endpoint accuracy of fast and slow isometric contractions.
Academic Article	Recruitment and derecruitment characteristics of motor units in a hand muscle of young and old adults.
Academic Article	Endpoint accuracy for a small and a large hand muscle in young and old adults during rapid, goal-directed isometric contractions.
Academic Article	Electromyographic measures of muscle activation and changes in muscle architecture of human elbow flexors during fatiguing contractions.
Academic Article	Motor-unit force potentiation in adult cats during a standard fatigue test.
Academic Article	Neural control of shortening and lengthening contractions: influence of task constraints.
Academic Article	Motor unit recruitment threshold.
Academic Article	Surface EMG decomposition requires an appropriate validation.
Academic Article	Discharge of biceps brachii motor units is modulated by load compliance and forearm posture.
Academic Article	Enhancing the weight training experience: a comparison of limb kinematics and EMG activity on three machines.
Academic Article	An integrative model of motor unit activity during sustained submaximal contractions.
Academic Article	Influence of fatigue on the simulated relation between the amplitude of the surface electromyogram and muscle force.
Academic Article	Decoding the neural drive to muscles from the surface electromyogram.
Academic Article	Mechanisms of muscle fatigue: Central factors and task dependency.
Academic Article	Task and fatigue effects on low-threshold motor units in human hand muscle.
Academic Article	Human motor unit recordings: origins and insight into the integrated motor system.
Academic Article	Fatigability of rat hindlimb muscle: associations between electromyogram and force during a fatigue test.
Academic Article	Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions.
Academic Article	Muscle strength and its development. New perspectives.
Academic Article	The interface between biomechanics and neurophysiology in the study of movement: some recent approaches.
Academic Article	Coexistence of twitch potentiation and tetanic force decline in rat hindlimb muscle.
Academic Article	The neurobiology of muscle fatigue: 15 years later.
Academic Article	Discharge properties of motor units during steady isometric contractions performed with the dorsiflexor muscles.
Academic Article	Motor unit activity when young and old adults perform steady contractions while supporting an inertial load.
Academic Article	Motor unit.
Academic Article	Cardiovascular adjustments to rhythmic handgrip exercise: relationship to electromyographic activity and post-exercise hyperemia.
Academic Article	Fatigue-related changes in neuromuscular excitability of rat hindlimb muscles.
Academic Article	Amplitude reduction of motor unit twitches during repetitive activation is accompanied by relative increase of hyperpolarizing membrane potential trajectories in homonymous alpha-motoneurons.
Concept	Muscle Development
Concept	Muscle Contraction
Concept	Quadriceps Muscle
Concept	Muscle Fibers, Skeletal
Concept	Muscle Stretching Exercises
Concept	Muscle Fatigue
Concept	Muscle Strength
Concept	Muscles
Concept	Muscle Relaxation
Concept	Muscle, Skeletal
Concept	Muscle Spindles
Academic Article	Associations between neuromuscular function and levels of physical activity differ for boys and girls during puberty.
Academic Article	A model of the surface electromyogram in pathological tremor.
Academic Article	Increase in heterogeneity of biceps brachii activation during isometric submaximal fatiguing contractions: a multichannel surface EMG study.
Academic Article	A unique form of light-load training improves steadiness and performance on some functional tasks in older adults.
Academic Article	Battery of behavioral tests in mice that models age-associated changes in human motor function.
Academic Article	Fatigability of the dorsiflexors and associations among multiple domains of motor function in young and old adults.
Academic Article	Motor function is associated with 1,25(OH)(2)D and indices of insulin-glucose dynamics in non-diabetic older adults.
Academic Article	Discharge characteristics of motor units during long-duration contractions.
Academic Article	Tirasemtiv amplifies skeletal muscle response to nerve activation in humans.
Academic Article	Sodium nitrite supplementation improves motor function and skeletal muscle inflammatory profile in old male mice.
Academic Article	Force steadiness during a co-contraction task can be improved with practice, but only by young adults and not by middle-aged or old adults.
Academic Article	Modulation of motor unit activity in biceps brachii by neuromuscular electrical stimulation applied to the contralateral arm.
Academic Article	Inappropriate interpretation of surface EMG signals and muscle fiber characteristics impedes understanding of the control of neuromuscular function.
Academic Article	Neural control of lengthening contractions.
Academic Article	Principles of Motor Unit Physiology Evolve With Advances in Technology.
Academic Article	Fatigue-induced adjustment in antagonist coactivation by old adults during a steadiness task.
Academic Article	Force steadiness as a predictor of time to complete a pegboard test of dexterity in young men and women.
Academic Article	Motor unit activity in biceps brachii of left-handed humans during sustained contractions with two load types.
Academic Article	Translating Fatigue to Human Performance.
Academic Article	Rate Coding and the Control of Muscle Force.
Grant	Neural Mechanisms in Muscle Fatigue
Grant	Motor Unit Synchronization and Muscle Function
Grant	LIMB IMMOBILIZATION EFFECTS ON MOTOR CONTROL
Grant	Arousal and Motor Performance in Older Adults
Grant	Neuromuscular Electrical Stimulation and Mobility in Multiple Sclerosis
Grant	Steadiness in Older Adults
Grant	Active Dendrites in Motor Neurons
Grant	STRENGTH TRAINING OF THE ELDERLY WITH LIGHT LOADS
Academic Article	Manipulation of sensory input can improve stretching outcomes.
Academic Article	Motor unit discharge characteristics and walking performance of individuals with multiple sclerosis.
Academic Article	Pulse Width Does Not Influence the Gains Achieved With Neuromuscular Electrical Stimulation in People With Multiple Sclerosis: Double-Blind, Randomized Trial.
Academic Article	Neuromuscular electrical stimulation can improve mobility in older adults but the time course varies across tasks: Double-blind, randomized trial.
Academic Article	Variability in common synaptic input to motor neurons modulates both force steadiness and pegboard time in young and older adults.
Academic Article	Decrease in force steadiness with aging is associated with increased power of the common but not independent input to motor neurons.
Academic Article	Motor unit activity, force steadiness, and perceived fatigability are correlated with mobility in older adults.
Academic Article	Electrical nerve stimulation modulates motor unit activity in contralateral biceps brachii during steady isometric contractions.
Academic Article	Individuals with sacroiliac joint dysfunction display asymmetrical gait and a depressed synergy between muscles providing sacroiliac joint force closure when walking.
Academic Article	The modulation of force steadiness by electrical nerve stimulation applied to the wrist extensors differs for young and older adults.
Academic Article	Self-massage prior to stretching improves flexibility in young and middle-aged adults.
Academic Article	The increase in muscle force after 4?weeks of strength training is mediated by adaptations in motor unit recruitment and rate coding.
Academic Article	Physiological validation of the decomposition of surface EMG signals.
Academic Article	A primer on motor unit physiology.
Academic Article	Changes in Fatigue Are the Same for Trained Men and Women after Resistance Exercise.
Academic Article	Consensus for experimental design in electromyography (CEDE) project: Electrode selection matrix.
Academic Article	Electrical Stimulation of Muscle: Electrophysiology and Rehabilitation.
Academic Article	Differences in postural sway among healthy adults are associated with the ability to perform steady contractions with leg muscles.
Academic Article	Force control during submaximal isometric contractions is associated with walking performance in persons with multiple sclerosis.
Academic Article	Tutorial: Analysis of motor unit discharge characteristics from high-density surface EMG signals.
Academic Article	Consensus for experimental design in electromyography (CEDE) project: Amplitude normalization matrix.
Academic Article	Exercise with TENS does not augment gains in balance and strength for dancers.
Academic Article	Force Steadiness: From Motor Units to Voluntary Actions.
Academic Article	The length of tibialis anterior does not influence force steadiness during submaximal isometric contractions with the dorsiflexors.
Academic Article	Consensus for experimental design in electromyography (CEDE) project: Terminology matrix.
Academic Article	Changes in neural drive to calf muscles during steady submaximal contractions after repeated static stretches.
Academic Article	Declines in muscle contractility and activation during isometric contractions of the knee extensors vary with contraction intensity and exercise volume.
Academic Article	Ankle Angle but Not Knee Angle Influences Force Fluctuations During Plantar Flexion.
Academic Article	Fatigue, pain, and the recovery of neuromuscular function after consecutive days of full-body resistance exercise in trained men.
Academic Article	Fatigability of the knee extensors following high- and low-load resistance exercise sessions in trained men.
Academic Article	Distribution of motor unit properties across human muscles.
Academic Article	Treatment with electrical stimulation of sensory nerves improves motor function and disability status in persons with multiple sclerosis: A pilot study.
Academic Article	Association between effective neural drive to the triceps surae and fluctuations in plantar-flexion torque during submaximal isometric contractions.
Academic Article	Bursting TENS increases walking endurance more than continuous TENS in middle-aged adults.
Academic Article	Leg Dominance Does Not Influence Maximal Force, Force Steadiness, or Motor Unit Discharge Characteristics.
Academic Article	Consensus for experimental design in electromyography (CEDE) project: High-density surface electromyography matrix.
Academic Article	Finger dexterity measured by the Grooved Pegboard test indexes Parkinson's motor severity in a tremor-independent manner.
Academic Article	Tempo-controlled resistance training of the hip abductors and ankle dorsiflexors with light loads does not improve postural sway in older adults.
Academic Article	Comparison of EMG Activity in Leg Muscles between Overground and Treadmill Running.
Academic Article	The Forces Generated by Agonist Muscles during Isometric Contractions Arise from Motor Unit Synergies.
Academic Article	Comparison of EMG activity in shank muscles between individuals with and without chronic ankle instability when running on a treadmill.
Academic Article	Evolution of surface electromyography: From muscle electrophysiology towards neural recording and interfacing.
Academic Article	Alternating or Bilateral Exercise Training does not Influence Force Control during Single-Leg Submaximal Contractions with the Dorsiflexors.
Academic Article	Footedness but not dominance influences force steadiness during isometric dorsiflexion in young men.
Academic Article	Influence of transcutaneous electrical nerve stimulation on the distance walked by older adults during the 6-min test of walking endurance.
Academic Article	Control of motor output during steady submaximal contractions is modulated by contraction history.

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