Muscle Contraction | CU Experts

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A Model of the Surface Electromyogram in Pathological Tremor Journal Article
A mathematical model for estimating muscle tension in vivo during esophageal bolus transport. Journal Article
A mathematical model of cardiocyte Ca2+ dynamics with a novel representation of sarcoplasmic reticular Ca2+ control Journal Article
A novel combination of methods to assess sarcopenia and muscle performance in mice. Journal Article
A primer on motor unit physiology Journal Article
A spinal pathway between synergists can modulate activity in human elbow flexor muscles Journal Article
A unique form of light-load training improves steadiness and performance on some functional tasks in older adults Journal Article
ACTIVATION HISTORY AND CONSTANT ERRORS IN HUMAN FORCE PRODUCTION Journal Article
AMPLITUDE REDUCTION OF MOTOR UNIT TWITCHES DURING REPETITIVE ACTIVATION IS ACCOMPANIED BY RELATIVE INCREASE OF HYPERPOLARIZING MEMBRANE-POTENTIAL TRAJECTORIES IN HOMONYMOUS ALPHA-MOTONEURONS Journal Article
ASSOCIATION BETWEEN MUSCLE ARCHITECTURE AND QUADRICEPS FEMORIS H-REFLEX Journal Article
Abnormal esophageal motility. An analysis of concurrent radiographic and manometric findings. Journal Article
Activation of Akt as a potential mediator of adaptations that reduce muscle injury Journal Article
Activation order of motor axons in electrically evoked contractions. Journal Article
Aging and movement errors when lifting and lowering light loads Journal Article
Agonist-Antagonist Coactivation Enhances Corticomotor Excitability of Ankle Muscles Journal Article
Amplitude cancellation of motor-unit action potentials in the surface electromyogram can be estimated with spike-triggered averaging Journal Article
Association between effective neural drive to the triceps surae and fluctuations in plantar-flexion torque during submaximal isometric contractions Journal Article
BEHAVIOR OF MOTOR UNITS IN HUMAN BICEPS BRACHII DURING A SUBMAXIMAL FATIGUING CONTRACTION Journal Article
Biomimetic soft fibrous hydrogels for contractile and pharmacologically responsive smooth muscle Journal Article
CHANGES IN EXCITABILITY OF TENDON TAP AND HOFFMANN REFLEXES FOLLOWING VOLUNTARY CONTRACTIONS Journal Article
COEXISTENCE OF TWITCH POTENTIATION AND TETANIC FORCE DECLINE IN RAT HINDLIMB MUSCLE Journal Article
CONTRACTIONS OF SINGLE MOTOR UNITS ARE REFLECTED IN MEMBRANE-POTENTIAL CHANGES OF HOMONYMOUS ALPHA-MOTONEURONS Journal Article
Ca²⁺ activation of myofilaments from transgenic mouse hearts expressing R92Q mutant cardiac troponin T Journal Article
Calculating metabolic energy expenditure across a wide range of exercise intensities: the equation matters Journal Article
Central modulation of motor unit activity Journal Article
Changes in Fatigue Are the Same for Trained Men and Women after Resistance Exercise Journal Article
Changes in movement capabilities with aging. Journal 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 Journal Article
Changes in neural drive to calf muscles during steady submaximal contractions after repeated static stretches Journal Article
Coherence at 16-32 Hz can be caused by short-term synchrony of motor units Journal Article
Comparative study of state-of-the-art myoelectric controllers for multigrasp prosthetic hands Journal Article
Comparison of the influence of two stressors on steadiness during index finger abduction Journal Article
Contralateral activity in a homologous hand muscle during voluntary contractions is greater in old adults Journal Article
Control of motor output during steady submaximal contractions is modulated by contraction history Journal Article
Creatine kinase and muscle soreness after repeated isometric exercise. Journal Article
Creatine kinase isoforms following isometric exercise. Journal Article
DEVELOPMENT OF COORDINATED MOVEMENT IN CHICKS .1. TEMPORAL ANALYSIS OF HINDLIMB MUSCLE SYNERGIES AT EMBRYONIC DAYS 9 AND 10 Journal Article
Declines in muscle contractility and activation during isometric contractions of the knee extensors vary with contraction intensity and exercise volume Journal Article
Decoding the neural drive to muscles from the surface electromyogram Journal Article
Decrease in force steadiness with aging is associated with increased power of the common but not independent input to motor neurons Journal Article
Detecting the unique representation of motor-unit action potentials in the surface electromyogram Journal Article
Dexterous Control of a Prosthetic Hand Using Fine-Wire Intramuscular Electrodes in Targeted Extrinsic Muscles Journal Article
Differences in postural sway among healthy adults are associated with the ability to perform steady contractions with leg muscles Journal Article
Different neural adjustments improve endpoint accuracy with practice in young and old adults Journal Article
Diminished task-related adjustments of common inputs to hand muscle motor neurons in older adults Journal Article
Discharge characteristics of motor units during long-duration contractions Journal Article
Discharge variability of motor units in an intrinsic muscle of transplanted hand Journal Article
Distinct patterns of oesophageal shortening during primary peristalsis, secondary peristalsis and transient lower oesophageal sphincter relaxation. Journal Article
Distribution of motor unit properties across human muscles Journal Article
EFFECTS OF TEMPERATURE ON CONTRACTILE PROPERTIES OF SKINNED MUSCLE-FIBERS FROM 3 TOAD SPECIES Journal Article
Eccentric contractions require unique activation strategies by the nervous system Journal Article
Electrical Stimulation of Muscle: Electrophysiology and Rehabilitation Journal Article
Energy cost and muscular activity required for leg swing during walking Journal Article
Evolution of surface electromyography: From muscle electrophysiology towards neural recording and interfacing Journal Article
FATIGABILITY OF RAT HINDLIMB MUSCLE - ASSOCIATIONS BETWEEN ELECTROMYOGRAM AND FORCE DURING A FATIGUE TEST Journal Article
FATIGUE-RELATED CHANGES IN MOTOR UNIT ACTION-POTENTIALS OF ADULT CATS Journal Article
FATIGUE-RELATED CHANGES IN NEUROMUSCULAR EXCITABILITY OF RAT HINDLIMB MUSCLES Journal Article
FORCE DEVELOPMENT AND RELAXATION IN SINGLE MOTOR UNITS OF ADULT CATS DURING A STANDARD FATIGUE TEST Journal Article
Fatigability of the elbow flexor muscles for a sustained submaximal contraction is similar in men and women matched for strength Journal Article
Fatigability of the knee extensors following high- and low-load resistance exercise sessions in trained men Journal Article
Fatigue of rat hindlimb motor units: Biochemical-physiological associations Journal Article
Fatigue, pain, and the recovery of neuromuscular function after consecutive days of full-body resistance exercise in trained men Journal Article
Fluctuations in acceleration during voluntary contractions lead to greater impairment of movement accuracy in old adults Journal 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 Journal Article
Frequency modulation of motor unit discharge has task-dependent effects on fluctuations in motor output Journal Article
Function of longitudinal vs circular muscle fibers in esophageal peristalsis, deduced with mathematical modeling. Journal Article
Functional Assessment of a Myoelectric Postural Controller and Multi-Functional Prosthetic Hand by Persons With Trans-Radial Limb Loss Journal Article
Gender differences in the fatigability of human skeletal muscle Journal Article
Growth and muscle defects in mice lacking adult myosin heavy chain genes Journal Article
Habitual exercise and the age-associated decline in large artery compliance Journal Article
Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions Journal Article
Heteronymous reflex responses in a hand muscle when maintaining constant finger force or position at different contraction intensities Journal Article
How does age affect leg muscle activity/coactivity during uphill and downhill walking? Journal Article
IMMOBILIZATION-INDUCED CHANGES IN MOTOR UNIT FORCE AND FATIGABILITY IN THE CAT Journal Article
IMPAIRMENT OF NEUROMUSCULAR PROPAGATION DURING HUMAN FATIGUING CONTRACTIONS AT SUBMAXIMAL FORCES Journal Article
ISOMETRIC TORQUE-ANGLE RELATIONSHIP AND MOVEMENT-RELATED ACTIVITY OF HUMAN ELBOW FLEXORS - IMPLICATIONS FOR THE EQUILIBRIUM-POINT HYPOTHESIS Journal Article
IT IS NOT A WAVELET ANALYSIS Journal Article
Identification of sequence changes in myosin II that adjust muscle contraction velocity Journal Article
Inappropriate interpretation of surface EMG signals and muscle fiber characteristics impedes understanding of the control of neuromuscular function Journal Article
Influence of amplitude cancellation on the accuracy of determining the onset of muscle activity from the surface electromyogram Journal Article
Influence of fatigue on the simulated relation between the amplitude of the surface electromyogram and muscle force Journal Article
Influence of load type on presynaptic modulation of Ia afferent input onto two synergist muscles Journal Article
Influence of motor unit properties on the size of the simulated evoked surface EMG potential Journal Article
KINEMATIC ASSESSMENT OF A FUNCTIONAL-ROLE FOR RECURRENT INHIBITION AND SELECTIVE RECRUITMENT Journal Article
LENGTH-DEPENDENCE OF ISOMETRIC TWITCH TENSION POTENTIATION AND MYOSIN PHOSPHORYLATION IN MOUSE SKELETAL-MUSCLE Journal Article
LINEAR AND NON-LINEAR SUMMATION OF ALPHA-MOTONEURON POTENTIAL CHANGES ELICITED BY CONTRACTIONS OF HOMONYMOUS MOTOR UNITS IN CAT MEDIAL GASTROCNEMIUS Journal Article
Leg Dominance Does Not Influence Maximal Force, Force Steadiness, or Motor Unit Discharge Characteristics Journal Article
Levels of serum creatine kinase and myoglobin in women after two isometric exercise conditions. Journal Article
Load Type Influences Motor Unit Recruitment in Biceps Brachii During a Sustained Contraction Journal Article
Local longitudinal muscle shortening of the human esophagus from high-frequency ultrasonography. Journal Article
Long-range correlations in motor unit discharge times at low forces are modulated by visual gain and age Journal Article
Long-term activity in upper- and lower-limb muscles of humans Journal Article
MAXIMUM BILATERAL CONTRACTIONS ARE MODIFIED BY NEURALLY MEDIATED INTERLIMB EFFECTS Journal Article
MORPHOLOGICAL FEATURES AND ACTIVATION PATTERNS OF MOTOR UNITS Journal Article
MOTOR UNIT BEHAVIOR IN PARKINSONS-DISEASE Journal Article
MOTOR UNIT RECRUITMENT THRESHOLD Journal Article
MOTOR-UNIT FORCE POTENTIATION IN ADULT CATS DURING A STANDARD FATIGUE TEST Journal Article
MUSCLE STRENGTH AND ITS DEVELOPMENT - NEW PERSPECTIVES Journal Article
MUSCULAR CONTROL OF A LEARNED MOVEMENT - THE SPEED CONTROL-SYSTEM HYPOTHESIS Journal Article
MUSCULAR ENLARGEMENT AND NUMBER OF FIBERS IN SKELETAL-MUSCLES OF RATS Journal Article
MYOSIN LIGHT CHAIN KINASES AND MYOSIN PHOSPHORYLATION IN SKELETAL-MUSCLE Journal Article
MYOSIN LIGHT CHAIN PHOSPHORYLATION AND TENSION POTENTIATION IN MOUSE SKELETAL-MUSCLE Journal Article
MYOSIN LIGHT CHAIN PHOSPHORYLATION IN FAST AND SLOW SKELETAL-MUSCLES INSITU Journal Article
Measurement of fasted state gastric antral motility before and after a standard bioavailability and bioequivalence 240 mL drink of water: Validation of MRI method against concomitant perfused manometry in healthy participants Journal Article
Mechanics and hemodynamics of esophageal varices during peristaltic contraction. Journal Article
Metabolic energy and muscular activity required for leg swing in running Journal Article
Modulating fast skeletal muscle contraction protects skeletal muscle in animal models of Duchenne muscular dystrophy Journal Article
Modulation of motor unit activity in biceps brachii by neuromuscular electrical stimulation applied to the contralateral arm Journal Article
Motor Unit Journal Article
Motor unit activity when young and old adults perform steady contractions while supporting an inertial load Journal Article
Motor unit physiology: Some unresolved issues Journal Article
Motor unit recruitment and bursts of activity in the surface electromyogram during a sustained contraction Journal Article
Motor unit recruitment strategies and muscle properties determine the influence of synaptic noise on force steadiness Journal Article
Motor unit synchronisation is enhanced during slow lengthening contractions of a hand muscle Journal Article
Motor-unit activity differs with load type during a fatiguing contraction Journal Article
Motor-unit synchronization alters spike-triggered average force in simulated contractions Journal Article
Muscle activation and time to task failure differ with load type and contraction intensity for a human hand muscle Journal Article
Muscle activity and time to task failure differ with load compliance and target force for elbow flexor muscles Journal Article
Muscle activity differs with load compliance during fatiguing contractions with the knee extensor muscles Journal Article
Muscle fatigue - from motor units to clinical symptoms Journal Article
Muscle fatigue and the mechanisms of task failure Journal Article
Muscle fatigue: what, why and how it influences muscle function Journal Article
Muscle soreness and serum creatine kinase activity following isometric, eccentric, and concentric exercise. Journal Article
Myofibroblasts: Molecular crossdressers Journal Article
NEUROBIOLOGY OF MUSCLE FATIGUE Journal Article
Neither total muscle activation nor co-activation explains the youthful walking economy of older runners. Journal Article
Net excitation of the motor unit pool varies with load type during fatiguing contractions Journal Article
Neural adaptations with chronic activity patterns in able-bodied humans Journal Article
Neural adaptations with chronic physical activity Journal Article
Neural control of lengthening contractions Journal Article
Neural control of shortening and lengthening contractions: influence of task constraints Journal Article
Neural strategies in the control of muscle force Journal Article
Nonuniform activation of the agonist muscle does not covary with index finger acceleration in old adults Journal Article
Older adults use a unique strategy to lift inertial loads with the elbow flexor muscles Journal Article
PHOSPHORYLATION OF RABBIT SKELETAL-MUSCLE MYOSIN INSITU Journal Article
PKA catalytic subunit compartmentation regulates contractile and hypertrophic responses to beta-adrenergic signaling Journal Article
PRONATION-SUPINATION TORQUE AND ASSOCIATED ELECTROMYOGRAPHIC ACTIVITY VARIES DURING A SUSTAINED ELBOW FLEXOR CONTRACTION BUT DOES NOT INFLUENCE THE TIME TO TASK FAILURE Journal Article
Physiology of the esophageal pressure transition zone: separate contraction waves above and below. Journal Article
Plasma matrix metalloproteinase-9 response to eccentric exercise of the elbow flexors Journal Article
Practice and endpoint accuracy with the left and right hands of old adults: The right-hemisphere aging model Journal Article
Practice reduces motor unit discharge variability in a hand muscle and improves manual dexterity in old adults Journal Article
Presynaptic Modulation of Ia Afferents in Young and Old Adults When Performing Force and Position Control Journal Article
Principles of Motor Unit Physiology Evolve With Advances in Technology Journal Article
Prolonged muscle vibration increases stretch reflex amplitude, motor unit discharge rate, and force fluctuations in a hand muscle Journal Article
Prolonged vibration of the biceps brachii tendon reduces time to failure when maintaining arm position with a submaximal load Journal Article
Psychosocial stress alters the strength of reticulospinal input to the human upper trapezius Journal Article
Quantification of distal antral contractile motility in healthy human stomach with magnetic resonance imaging. Journal Article
Quantifying heart valve interstitial cell contractile state using highly tunable poly(ethylene glycol) hydrogels Journal Article
REDUCED CONTROL OF MOTOR OUTPUT IN A HUMAN HAND MUSCLE OF ELDERLY SUBJECTS DURING SUBMAXIMAL CONTRACTIONS Journal Article
REDUCED MOTOR UNIT ACTIVATION OF MUSCLE-SPINDLES AND TENDON ORGANS IN THE IMMOBILIZED CAT HINDLIMB Journal Article
RELATIVE ACTIVATION OF 2 HUMAN ELBOW FLEXORS UNDER ISOMETRIC CONDITIONS - A CAUTIONARY NOTE CONCERNING FLEXOR EQUIVALENCE Journal Article
REPTILIAN SKELETAL-MUSCLE - CONTRACTILE PROPERTIES OF IDENTIFIED, SINGLE FAST-TWITCH AND SLOW FIBERS FROM THE LIZARD DIPSOSAURUS-DORSALIS Journal Article
ROLE OF DIPROTONATED PHOSPHATE IN EVOKING MUSCLE-REFLEX RESPONSES IN CATS AND HUMANS Journal Article
Rate coding is compressed but variability is unaltered for motor units in a hand muscle of old adults Journal Article
Recruitment and derecruitment characteristics of motor units in a hand muscle of young and old adults Journal Article
Rectification of muscle and nerve deficits in paralyzed ryanodine receptor type 1 mutant embryos Journal Article
Reduced muscle fiber force production and disrupted myofibril architecture in patients with chronic rotator cuff tears Journal Article
Reflex Inhibition in Human Biceps Brachii Decreases With Practice of a Fatiguing Contraction Journal Article
SENSITIVITY OF MUSCLE PROTON SPIN-SPIN RELAXATION-TIME AS AN INDEX OF MUSCLE ACTIVATION Journal Article
SHORT-TERM IMMOBILIZATION HAS A MINIMAL EFFECT ON THE STRENGTH AND FATIGABILITY OF A HUMAN HAND MUSCLE Journal Article
STIMULUS-RELATED CORRELATIONS BETWEEN MEDIAL GASTROCNEMIUS-MUSCLE TENSION AND HOMONYMOUS MOTONEURON MEMBRANE-POTENTIAL RESULT FROM NON-LINEARITIES Journal Article
Sarcomeric gene expression and contractility in myofibroblasts Journal Article
Self-massage prior to stretching improves flexibility in young and middle-aged adults Journal Article
Serum creatine kinase activity following forearm flexion isometric exercise. Journal Article
Seven days of muscle re-loading and voluntary wheel running following hindlimb suspension in mice restores running performance, muscle morphology and metrics of fatigue but not muscle strength Journal Article
Sex-Based Differences in Skeletal Muscle Kinetics and Fiber-Type Composition Journal Article
Spinal mechanisms contribute to differences in the time to failure of submaximal fatiguing contractions performed with different loads Journal Article
Statins Block Calcific Nodule Formation of Valvular Interstitial Cells by Inhibiting alpha-Smooth Muscle Actin Expression Journal Article
Steadiness is reduced and motor unit discharge is more variable in old adults Journal Article
Steadiness training with light loads in the knee extensors of elderly adults Journal Article
Steep (30°) uphill walking vs. running: COM movements, stride kinematics, and leg muscle excitations Journal Article
Stiffness anisotropy coordinates supracellular contractility driving long-range myotube-ECM alignment. Journal Article
Strength training improves the steadiness of slow lengthening contractions performed by old adults Journal Article
Strength training reduces force fluctuations during anisometric contractions of the quadriceps femoris muscles in old adults Journal Article
TASK AND FATIGUE EFFECTS ON LOW-THRESHOLD MOTOR UNITS IN HUMAN HAND MUSCLE Journal Article
THE INTERPOLATED TWITCH AND THE FORCE CAPACITY OF MUSCLE Journal Article
TRAINING-RELATED ENHANCEMENT IN THE CONTROL OF MOTOR OUTPUT IN ELDERLY HUMANS Journal Article
Task differences with the same load torque alter the endurance time of submaximal fatiguing contractions in humans Journal Article
Task failure during fatiguing contractions performed by humans Journal Article
Task- and time-dependent modulation of Ia presynaptic inhibition during fatiguing contractions performed by humans Journal Article
Task-dependent effect of limb immobilization on the fatigability of the elbow flexor muscles in humans Journal Article
Tethering transforming growth factor β1 to soft hydrogels guides vascular smooth muscle commitment from human mesenchymal stem cells Journal Article
The 1-to 2-Hz oscillations in muscle force are exacerbated by stress, especially in older adults Journal Article
The ATPase cycle of human muscle myosin II isoforms: Adaptation of a single mechanochemical cycle for different physiological roles Journal Article
The Esophagiome: concept, status, and future perspectives Journal Article
The Forces Generated by Agonist Muscles during Isometric Contractions Arise from Motor Unit Synergies Journal Article
The increase in muscle force after 4 weeks of strength training is mediated by adaptations in motor unit recruitment and rate coding Journal Article
The length of tibialis anterior does not influence force steadiness during submaximal isometric contractions with the dorsiflexors Journal Article
The mechanical advantage of local longitudinal shortening on peristaltic transport. Journal Article
The modulation of force steadiness by electrical nerve stimulation applied to the wrist extensors differs for young and older adults Journal Article
Three-dimensional structure of the basketweave Z-band in midshipman fish sonic muscle Journal Article
Time to failure of a sustained contraction is predicted by target torque and initial electromyographic bursts in elbow flexor muscles Journal Article
Time to task failure differs with load type when old adults perform a submaximal fatiguing contraction Journal Article
Time to task failure varies with the gain of the feedback signal for women, but not for men Journal Article
Training adaptations in the behavior of human motor units Journal Article
Unraveling the neurophysiology of muscle fatigue Journal Article
Variability in common synaptic input to motor neurons modulates both force steadiness and pegboard time in young and older adults Journal Article
miR-206 enforces a slow muscle phenotype Journal Article

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