ArticleThe Journal of physiology2018
Variability in common synaptic input to motor neurons modulates both force steadiness and pegboard time in young and older adults.
Article in The Journal of physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.
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Who cites it
39 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Relationship Between Force Steadiness and Functionality in Older Adults: A Systematic Review With Meta-Analysis.Scandinavian journal of medicine & science in sports · 2025Pooled it
- Effects of short-term hand immobilization on motor functions across domains in adults.Physiological reports · 2026Trial
- Article
- Motor Unit Behaviour in the Biceps Brachii During Asymmetric Bilateral Versus Unilateral Dynamic Force Tracking Across Force Levels and Rates of Force Development: A Preliminary Study.Life (Basel, Switzerland) · 2026Article
- Differential Effects of High and Low Frequency Subthalamic Nucleus Deep Brain Stimulation on Force Steadiness in Patients with Parkinson's Disease: An Exploratory Study.Neurology and therapy · 2026Article
- Analysis of motor units with high-density surface electromyography: methodological considerations and physiological significance.European journal of applied physiology · 2026Review
- Exploring the role of ankle torque fluctuations and intramuscular coherence in gait function among older adults.Aging clinical and experimental research · 2025Article
- Peripheral neural interfaces for reading high-frequency brain signals.Nature biomedical engineering · 2025Review
- Alpha band oscillations in common synaptic input are explanatory of the complexity of isometric knee extensor muscle torque signals.Experimental physiology · 2024Article
- Explaining the influence of practice on the grooved pegboard times of older adults: role of force steadiness.Experimental brain research · 2024Article
- Measuring the nonselective effects of motor inhibition using isometric force recordings.Behavior research methods · 2024Article
- Fluctuation of fine motor skills throughout the menstrual cycle in women.Scientific reports · 2024Article
- Common synaptic inputs and persistent inward currents of vastus lateralis motor units are reduced in older male adults.GeroScience · 2024Article
- Prediction of 1-year change in knee extension strength by neuromuscular properties in older adults.GeroScience · 2024Article
- Preliminary report: Reduced hand sensory and motor function in persons living with heart failure.PloS one · 2024Article
- Entropy in Electroencephalographic Signals Modulates with Force Magnitude During Grasping - A Preliminary Report.Journal of motor behavior · 2024Article
- Two motor neuron synergies, invariant across ankle joint angles, activate the triceps surae during plantarflexion.The Journal of physiology · 2023Article
- Influence of pedal characteristics on pedaling control and neural drive in older adults.European journal of applied physiology · 2023Article
- Influence of transcutaneous electrical nerve stimulation on walking kinematics and standing balance of older adults who differ in walking speed.Experimental brain research · 2023Article
- The Forces Generated by Agonist Muscles during Isometric Contractions Arise from Motor Unit Synergies.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key pointsThe fluctuations in force during a steady isometric contraction (force steadiness) are associated with oscillations in common synaptic input to the involved motor neurons. Decreases in force steadiness are associated with increases in pegboard times in older adults, although a mechanism for this link has not been established. We used a state-space model to estimate the variability in common synaptic input to motor neurons during steady, isometric contractions. The estimate of common synaptic input was derived from the discharge times of motor units as recorded with high-density surface electrodes. We found that the variability in common synaptic input to motor neurons modulates force steadiness for young and older adults, as well as pegboard time for older adults. ABSTRACT: We investigated the associations between grooved pegboard times, force steadiness (coefficient of variation for force) and variability in an estimate of the common synaptic input to motor neurons innervating the wrist extensor muscles during steady contractions performed by young and older adults. The discharge times of motor units were derived from recordings obtained with high-density surface electrodes when participants performed steady isometric contractions at 10% and 20% of maximal voluntary contraction force. The steady contractions were performed with a pinch grip and wrist extension, both independently (single action) and concurrently (double action). The variance in common synaptic input to motor neurons was estimated with a state-space model of the latent common input dynamics. There was a statistically significant association between the coefficient of variation for force during the steady contractions and the estimated variance in common synaptic input in young (r
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