Stimulation of nerve trunks with time-varying magnetic fields

Polson, M J R; Barker, Anthony T.; Freeston, I.L.

doi:10.1007/bf02441362

Cited by 193 publications

(77 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The H-reflex has subsequently been used to measure the conduction time in the proximal segment of the peripher al nerve and to study the excitability of motor neurons in the spinal cord ... 'With the r ecent development of magnetic stimulation as a method to stimulate nerves, 8 numerous studies of magnetic activation of motor fibers within mixed nerves in the upper limbs•->• and motor nerve roots at the cervical or lumbar regions have been conducted. 16 ' 16 The extremely short dur ation of the magnetic stimulus has been assumed to be inadequate for direct Ia fiber excitation.…”

mentioning

confidence: 99%

The H-reflex to Magnetic Stimulation of Lower-Limb Nerves

Zhu

Starr²,

Su³

et al. 1992

Archives of Neurology

View full text Add to dashboard Cite

mentioning

confidence: 99%

The H-reflex to Magnetic Stimulation of Lower-Limb Nerves

Zhu

Starr²,

Su³

et al. 1992

Archives of Neurology

View full text Add to dashboard Cite

“…В 1982 г. M. J. Polson и соавт. продемонстрировали стимуляцию поверхностно расположенного периферического не-рва одиночными магнитными стимулами с последу-ющей регистрацией моторного ответа с прилежащей мышцы [4]. В 1985 г.…”

Section: том 7 Volunclassified

Peripheral repetitive magnetic stimulation for the treatment of neurogenic urinary disorders: literature review and investigational study

Borodulina¹,

Rachin²,

Бадалов³

et al. 2017

Neuromuscular Diseases

View full text Add to dashboard Cite

ТОМ 7 VOL. 7Нервно-мышечные Б О Л Е З Н И Neuromuscular DISEASES 54 Оригинальные исследованияВведение Возможности терапевтического применения энер-гии магнитного поля -предмет практического инте-реса на протяжении нескольких столетий. Начало этому пути положили эксперименты Л. Гальвани, ко-торый в XVIII веке сформулировал теорию животного электричества и создал базу для развития электрофи-зиологии. С этого времени началось более глубокое изучение электромагнитного взаимодействия. Откры-тие явления электромагнитной индукции М. Фараде-ем в середине XIX века позволило установить, что в от-вет на переменное магнитное поле (ПМП) в проводящей среде возникает электрический ток. На этом постулате физики в последующем базировал-ся механизм воздействия магнитного импульса на жи-вую ткань. В противоположность электрической сти-муляции

show abstract

“…Magnetic stimulation is a method in which the nerve is stimulated through an eddy current arising from a magnetic field that occurs perpendicular to the plane of the stimulation coil when current passes through the coil (2). Unlike electrical stimulation, magnetic stimulation is a non-contact method with very few occurrences of pain caused by skin impedance, and has an advantage of being able to stimulate deep tissue areas noninvasively (14). There have been many clinical reports on the improvement in motor function of a paralyzed limb by transcranial magnetic stimulation (13,24).…”

Section: Outcome Assessmentmentioning

confidence: 99%

“…Peripheral venous blood flow was 4.5 ± 0.74 mL/min (mean ± SD) before stimulation, 7.0 ± 1.0 mL/min immediately after stimulation, and 8.6 ± 1.3 mL/min 15 min after stimulation, indicating a significant increase both immediately and 15 min after stimulation compared to before stimulation [before stimulation vs. immediately after stimulation: 95% confidence interval −0.004 to −0.001 (P < 0.001), before stimulation vs. 15 min after stimulation: 95% confidence netic stimulation can stimulate deep tissue areas less invasively than electrical stimulation (14), if it is proven to have similar or greater effects compared to electrical stimulation, it may become a novel rehabilitation technique.…”

Section: Changes In Peripheral Venous Blood Flowmentioning

confidence: 99%

<b>The impact of high-frequency magnetic stimulation of peripheral nerves: muscle hardness, venous blood flow, and motor function of upper extremity in healthy </b><b>subjects </b>

et al. 2015

View full text Add to dashboard Cite

The purpose of this study was to investigate the impact of high-frequency peripheral nerve magnetic stimulation on the upper limb function. Twenty-five healthy adults (16 men and 9 women) participated in this study. The radial nerve of the non-dominant hand was stimulated by high-frequency magnetic stimulation device. A total of 600 impulses were applied at a frequency of 20 Hz and intensity of 1.2 resting motor threshold (rMT). At three time points (before, immediately after, and 15 min after stimulation), muscle hardness of the extensor digitorum muscle on the stimulated side was measured using a mechanical tissue hardness meter and a shear wave imaging device, cephalic venous blood flow on the stimulated side was measured using an ultrasound system, and the Box and Block test (BBT) was performed. Mechanical tissue hardness results did not show any significant differences between before, immediately after, and 15 min after stimulation. Measurements via shear wave imaging showed that muscle hardness significantly decreased both immediately and 15 min after stimulation compared to before stimulation (P < 0.05). Peripheral venous blood flow and BBT score significantly increased both immediately and 15 min after stimulation compared to before stimulation (P < 0.01). High-frequency peripheral nerve magnetic stimulation can achieve effects similar to electrical stimulation in a less invasive manner, and may therefore become an important element in next-generation rehabilitation.In a pathological state in which the muscle cannot contract voluntarily due to upper motor neuron disorders such as stroke and spinal cord injury, it is possible to contract the paralyzed muscle by directly applying electrical stimulation to the lower motor neuron and its innervating muscles (21). Functional electrical stimulation (FES) can be applied to such motor paralysis; specifically, using an FES system, targeted movements can be recovered by applying programmed movement stimuli to the paralyzed limb via multiple stimulation electrodes (22). Moreover, a recent report using fMRI demonstrated afferent effects in the motor cortex after FES (20), and FES is therefore anticipated for future development in the field of rehabilitation. The electrodes utilized in electrical stimulation are generally classified into surface electrodes or implanted electrodes. Some of the disadvantages of surface electrodes include: they induce pain and have risk of burn due to Joules heat caused by a concentration of current that is dependent on the non-uniform distribution of electrode contact impedance; they can only stimulate the shallow muscle layer and cannot selectively apply stimuli; and they require time for attachment and detachment (9). On

show abstract

Stimulation of nerve trunks with time-varying magnetic fields

Cited by 193 publications

References 3 publications

The H-reflex to Magnetic Stimulation of Lower-Limb Nerves

The H-reflex to Magnetic Stimulation of Lower-Limb Nerves

Peripheral repetitive magnetic stimulation for the treatment of neurogenic urinary disorders: literature review and investigational study

<b>The impact of high-frequency magnetic stimulation of peripheral nerves: muscle hardness, venous blood flow, and motor function of upper extremity in healthy </b><b>subjects </b>

Contact Info

Product

Resources

About