Microneurography from the posterior tibial nerve: a novel method of recording activity from the foot in freely standing humans
| Autor: | Thomas P. Knellwolf, Vaughan G. Macefield, Elie Hammam, Alexander R. Burton |
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| Rok vydání: | 2018 |
| Předmět: |
Male
030110 physiology 0301 basic medicine Posterior tibial nerve Physiology 03 medical and health sciences 0302 clinical medicine Supine Position Humans Medicine Muscle Skeletal Muscle Spindles Afferent Pathways Sitting Position Arthrometry Articular Electromyography Foot business.industry General Neuroscience Anatomy Microneurography Electric Stimulation medicine.anatomical_structure Standing Position Female Ankle Tibial Nerve business Ankle Joint 030217 neurology & neurosurgery Foot (unit) |
| Zdroj: | Journal of Neurophysiology. 120:953-959 |
| ISSN: | 1522-1598 0022-3077 |
| DOI: | 10.1152/jn.00937.2017 |
| Popis: | The posterior tibial nerve, located behind the medial malleolus of the ankle, supplies the intrinsic muscles of the foot and most of the skin of the sole. We describe a novel approach for recording from this nerve via a percutaneously inserted tungsten microelectrode and provide examples of recordings from presumed muscle spindle endings recorded in freely standing human subjects. The fact that the angular excursions of the ankle joint are small as the foot is loaded during the transition from the seated position to standing means that one can obtain stable recordings of neural traffic in unloaded, loaded, and freely standing conditions. We conclude that this novel approach will allow studies that will increase our understanding of the roles of muscle and cutaneous afferents in the foot in the control of upright posture. NEW & NOTEWORTHY We have performed the first microneurographic studies from the posterior tibial nerve at the ankle. Stability of the recording site allows one to record from muscle spindles in the intrinsic muscles of the foot as well as from cutaneous mechanoreceptors in the sole of the foot during the transition from seated to standing. This novel approach opens up new opportunities for studying the roles of muscle and cutaneous afferents in the foot in the control of upright stance. |
| Databáze: | OpenAIRE |
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