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Enoka, R. M.
Enoka, Roger M.
Roger M. Enoka
Roger M. Enoka (academic)
Roger M. Enoka (Amerikaans neurowetenschapper)
Энока, Роджер М
Neural and Neuromuscular Aspects of Muscle Fatigue (10-11-1994 - 13-11-1994 : Miami, Florida)
1- to 2-Hz oscillations in muscle force are exacerbated by stress, especially in older adults, The
Accessory muscle activity contributes to the variation in time to task failure for different arm postures and loads
Activation among the elbow flexor muscles differs when maintaining arm position during a fatiguing contraction
Activation of the arousal response and impairment of performance increase with anxiety and stressor intensity.
Active Dendrites in Motor Neurons
Adjustments differ among low-threshold motor units during intermittent, isometric contractions.
Amplitude cancellation of motor-unit action potentials in the surface electromyogram can be estimated with spike-triggered averaging.
Amplitude cancellation reduces the size of motor unit potentials averaged from the surface EMG
Amplitude reduction of motor unit twitches during repetitive activation is accompanied by relative increase of hyperpolarizing membrane potential trajectories in homonymous alpha-motoneurons.
Associations among strength, steadiness, and hand function across the adult life span.
Central modulation of motor unit activity.
Changes in muscle activation can prolong the endurance time of a submaximal isometric contraction in humans
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.
Coherence at 16-32 Hz Can Be Caused by Short-Term Synchrony of Motor Units
Comments on Point:Counterpoint: The interpolated twitch does/does not provide a valid measure of the voluntary activation of muscle.
Common input to different regions of biceps brachii long head
Comparison of the influence of two stressors on steadiness during index finger abduction
Contralateral activity in a homologous hand muscle during voluntary contractions is greater in old adults
Decoding the neural drive to muscles from the surface electromyogram.
Detecting the unique representation of motor-unit action potentials in the surface electromyogram.
Different Neural Adjustments Improve Endpoint Accuracy With Practice in Young and Old Adults
Diminished task-related adjustments of common inputs to hand muscle motor neurons in older adults
Discharge characteristics of biceps brachii motor units at recruitment when older adults sustained an isometric contraction.
Discharge of biceps brachii motor units is modulated by load compliance and forearm posture
Discharge rate during low-force isometric contractions influences motor unit coherence below 15 Hz but not motor unit synchronization
Discharge rate variability influences the variation in force fluctuations across the working range of a hand muscle.
Discharge Variability of Motor Units in an Intrinsic Muscle of Transplanted Hand
EFFECTS OF LIMB IMMOBILIZATION ON MOTOR CONTROL
Electromyographic measures of muscle activation and changes in muscle architecture of human elbow flexors during fatiguing contractions
Endpoint accuracy for a small and a large hand muscle in young and old adults during rapid, goal-directed isometric contractions
Enhancing the weight training experience: a comparison of limb kinematics and EMG activity on three machines.
extraction of neural strategies from the surface EMG, The
Fatigability of rat hindlimb muscle: associations between electromyogram and force during a fatigue test.
Fatigability of the elbow flexor muscles for a sustained submaximal contraction is similar in men and women matched for strength
Fatigue of rat hindlimb motor units: Biochemical-physiological associations
Fluctuations in acceleration during voluntary contractions lead to greater impairment of movement accuracy in old adults
Fluctuations in acceleration during voluntary contractions lead to greater impairment of movement acuracy in old adults
Fluctuations in motor output during steady contractions are weakly related across contraction types and between hands
Fluctuations in motor output of a hand muscle can be altered by the mechanical properties of the position sensor.
Frequency Modulation of Motor Unit Discharge Has Task-Dependent Effects on Fluctuations in Motor Output
Heteronymous reflex responses in a hand muscle when maintaining constant finger force or position at different contraction intensities.
Influence of aging on sex differences in mucle fatigability
Influence of aging on sex differences in muscle fatigability.
Influence of amplitude cancellation on the simulated surface electromyogram
Influence of fatigue on the simulated relation between the amplitude of the surface electromyogram and muscle force.
Influence of load type on presynaptic modulation of Ia afferent input onto two synergist muscles.
Influence of motor unit properties on the size of the simulated evoked surface EMG potential.
integrative model of motor unit activity during sustained submaximal contractions, An
LIMB IMMOBILIZATION EFFECTS ON MOTOR CONTROL
Linear and non-linear summation of alpha-motoneuron potential changes elicited by contractions of homonymous motor units in cat medial gastrocnemius.
Load type influences motor unit recruitment in biceps brachii during a sustained contraction.
Long-term activity in upper- and lower-limb muscles of humans.
Measurement of axonal conduction velocity in single mammalian motor axons.
Mechanisms that contribute to differences in motor performance between young and old adults.
Men are more fatigable than strength-matched women when performing intermittent submaximal contractions
Morphological features and activation patterns of motor units.
Motor-unit activity differs with load type during a fatiguing contraction.
Motor-Unit Coherence During Isometric Contractions Is Greater in a Hand Muscle of Older Adults
Motor unit physiology: some unresolved issues.
Motor unit recruitment and bursts of activity in the surface electromyogram during a sustained contraction
Motor unit recruitment in human biceps brachii during sustained voluntary contractions.
Motor unit synchronisation is enhanced during slow lengthening contractions of a hand muscle
Motor Unit Synchronization and Muscle Function
Multiple features of motor-unit activity influence force fluctuations during isometric contractions.
Muscle activation and time to task failure differ with load type and contraction intensity for a human hand muscle
Muscle activity and time to task failure differ with load compliance and target force for elbow flexor muscles
Muscle activity differs with load compliance during fatiguing contractions with the knee extensor muscles
Muscle endurance is greater for old men compared with strength-matched young men
Muscle fatigue and the mechanisms of task failure.
Muscle fatigue: what, why and how it influences muscle function.
MUSCULAR CONTROL OF A LEARNED MOVEMENT
Net excitation of the motor unit pool varies with load type during fatiguing contractions.
Neural and neuromuscular aspects of muscle fatigue : Miami, Florida, November 10-13, 1994 : abstracts of podium and poster presentations
Neural control of shortening and lengthening contractions: influence of task constraints.
Neural Mechanisms in Muscle Fatigue
neurobiology of muscle fatigue: 15 years later, The
Neuromechanical basis of kinesiology
Neuromechanics of human movement
Neuromuscular adjustments that constrain submaximal EMG amplitude at task failure of sustained isometric contractions
Nonuniform activation of the agonist muscle does not covary with index finger acceleration in old adults
Older adults are less steady during submaximal isometric contractions with the knee extensor muscles.
Optimization of Input Patterns and Neuronal Properties to Evoke Motor Neuron Synchronization
Practice and endpoint accuracy with the left and right hands of old adults: The right-hemisphere aging model
Practice reduces motor unit discharge variability in a hand muscle and improves manual dexterity in old adults
Practicing a functional task improves steadiness with hand muscles in older adults.
Presynaptic modulation of Ia afferents in young and old adults when performing force and position control.
Prolonged muscle vibration increases stretch reflex amplitude, motor unit discharge rate, and force fluctuations in a hand muscle
Prolonged Vibration of the Biceps Brachii Tendon Reduces Time to Failure When Maintaining Arm Position With a Submaximal Load
Pronation-supination torque and associated electromyographic activity varies during a sustained elbow flexor contraction but does not influence the time to task failure.
Rate coding is compressed but variability is unaltered for motor units in a hand muscle of old adults.
Recruitment and derecruitment characteristics of motor units in a hand muscle of young and old adults
Reflex inhibition in human biceps brachii decreases with practice of a fatiguing contraction.
Reflex responsiveness of a human hand muscle when controlling isometric force and joint position.
Sensitivity of the cross-correlation between simulated surface EMGs for two muscles to detect motor unit synchronization.
Sensitivity of the cross-correlaton between simulated surface EMGs for two muscles to detect motor unit synchronization
Sex differences in the fatigability of arm muscles depends on absolute force during isometric contractions
Spinal Mechanisms Contribute to Differences in the Time to Failure of Submaximal Fatiguing Contractions Performed With Different Loads
spinal pathway between synergists can modulate activity in human elbow flexor muscles, A
stable, selective electrode for recording single motor-unit potentials in humans., A
Steadiness Training with Light Loads in the Knee Extensors of Elderly Adults
Stimulus-related correlations between medial gastrocnemius muscle tension and homonymous motoneuron membrane potential result from non-linearities.
Strength training improves the steadiness of slow lengthening contractions performed by old adults.
Strength training reduces force fluctuations during anisometric contractions of the quadriceps femoris muscles in old adults
Task- and age-dependent variations in steadiness.
Task and fatigue effects on low-threshold motor units in human hand muscle.
Task- and time-dependent modulation of Ia presynaptic inhibition during fatiguing contractions performed by humans.
Task Differences With the Same Load Torque Alter the Endurance Time of Submaximal Fatiguing Contractions in Humans
Task failure during fatiguing contractions performed by humans
Time to failure of a sustained contraction is predicted by target torque and initial electromyographic bursts in elbow flexor muscles.
Time to task failure differs with load type when old adults perform a submaximal fatiguing contraction
Time to task failure varies with the gain of the feedback signal for women, but not for men
Timing variability and not force variability predicts the endpoint accuracy of fast and slow isometric contractions
Training adaptations in the behavior of human motor units
Unraveling the neurophysiology of muscle fatigue.
Variability of motor unit discharge and force fluctuations across a range of muscle forces in older adults.
Основы кинезиологии, 2000;
Contributed to or performed:
JOURNAL OF CLINICAL NEUROPHYSIOLOGY
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE