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- 8Neuromuscular electrical stimulation
- 2Corticospinal excitability
- 2Motor cortex
- 1Central nervous system
- 1Contraction fatigability
- 1Ainsley, Emily N.
- 1Clair, Joanna
- 1Hindle, Alyssa R
- 1Joner Wiest, Matheus
- 1Lagerquist, Olle
- 1Luu, Minh J
A comparison of neuromuscular electrical stimulation parameters on increasing corticospinal excitabilityDownload
In this thesis, experiments that investigated the effects of neuromuscular electrical stimulation (NMES) parameters on corticospinal (CS) excitability are described. The NMES-induced afferent volley can increase CS excitability, which can facilitate neurorehabilitation. However, literature...
This thesis describes experiments designed to investigate the effects of neuromuscular electrical stimulation (NMES) on corticospinal (CS) excitability in humans. NMES delivered at 100 Hz was more effective for increasing CS excitability than 10-, 50-, or 200-Hz NMES. CS excitability increases...
Contraction fatigue and motor unit overlap in the tibialis anterior during different intensities of interleaved electrical stimulationDownload
Interleaved neuromuscular electrical stimulation (iNMES), which involves alternating stimulus pulses between a nerve (nNMES) and muscle belly (mNMES), has been demonstrated to reduce fatigue of the ankle dorsiflexors when used with relatively low contraction amplitudes. However, the amount of...
Decreases in the excitability of motor axons contribute substantially to contraction fatigability during neuromuscular electrical stimulationDownload
Activity-dependent changes in axonal excitability are well-documented, yet the contribution to contraction fatigability during neuromuscular electrical stimulation (NMES) is unclear. The present study was designed to: 1) characterize the magnitude and time course of changes in motor axon...
Neuromuscular electrical stimulation (NMES) is used to produce contractions to restore movement and reduce secondary complications for individuals experiencing paralysis. NMES is traditionally delivered through electrodes over a muscle belly (mNMES) or superficial nerve trunk (nNMES)....
Neuromuscular electrical stimulation (NMES) is a common therapeutic tool for persons with movement disorders. The manner in which NMES generates muscular contractions has traditionally been attributed to the depolarization of motor axons underneath the stimulating electrodes, a purely peripheral...
In this thesis sensorimotor integration in the human spinal cord was investigated in the intact (Chapters 2 and 3) and injured nervous systems (Chapter 4-stroke; Chapter 5-spinal cord injury (SCI)). In Chapter 2, I characterized a short-latency reflex pathway between sensory receptors of the...
Where electrical stimulation is delivered affects how contractions are generated in the tibialis anterior muscleDownload
This thesis describes experiments designed to investigate how motor units in tibialis anterior (TA) were recruited when electrical stimulation was applied over the TA muscle belly versus the common peroneal nerve trunk. The data from the first study (Chapter 2) showed that contractions were...