Spatial facilitation of reciprocal inhibition and crossed inhibitory responses to soleus motoneurons during walking

Andrew James Thomas Stevenson, Svend Sparre Geertsen, Jens Bo Nielsen, Natalie Mrachacz-Kersting

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Abstrakt

In humans, short-latency crossed spinal inhibitory reflexes are elicited in the contralateral soleus (cSOL) muscle following stimulation of the ipsilateral posterior tibial nerve (iPTN). To date, the spinal interneurons mediating the cSOL inhibition are unknown. This study investigated whether the Ia inhibitory interneurons in the disynaptic reciprocal inhibition pathway mediate the short-latency cSOL inhibition. Following combined stimulation of the iPTN and the contralateral common peroneal nerve (cCPN), we quantified the spatial facilitation of the ongoing electromyography (EMG; Experiment 1) or the test H-reflex (Experiment 2) in the cSOL during walking. There was a significant increase in the cSOL inhibition when the two stimuli were elicited in combination compared to that expected from the algebraic sum of the two if elicited separately. It is therefore likely that the Ia inhibitory interneurons in the disynaptic reciprocal inhibitory pathway contribute to the short-latency cSOL inhibitory reflex.
OriginalsprogEngelsk
TitelConverging Clinical and Engineering Research on Neurorehabilitation II : Proceedings of the 3rd International Conference on NeuroRehabilitation, ICNR2016, 18-21 October 2016, Segovia, Spain
RedaktørerJaime Ibáñez, José González-Vargas, José María Azorín, Metin Akay, José Luis Pons
ForlagSpringer
Publikationsdato2017
Sider1031-1036
ISBN (Trykt)978-3-319-46668-2
ISBN (Elektronisk)978-3-319-46669-9
DOI
StatusUdgivet - 2017
BegivenhedInternational Conference on NeuroRehabilitation, ICNR - Segovia, Spanien
Varighed: 18 okt. 201621 okt. 2016
Konferencens nummer: 3

Konference

KonferenceInternational Conference on NeuroRehabilitation, ICNR
Nummer3
Land/OmrådeSpanien
BySegovia
Periode18/10/201621/10/2016
NavnBiosystems and Biorobotics
Nummer15
ISSN2195-3562

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