Leistungen des sensomotorischen Systems und Schmerz

Laube, Wolfgang

doi:10.1007/978-3-662-60512-7_10

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…Frequency domain analysis consists in dividing the EMG signal into different frequency clusters representing the different muscle fibre types 27 . Based on existing literature, three frequency clusters were identified in the SM EMG signal: a low frequency (30–70 Hz) cluster representing slow‐twitch (type I) muscle fibres, a high frequency (90–150 Hz) cluster representing fast twitch (type II) muscle fibre and a third cluster including frequencies between 70 and 90 Hz, representing mixed fibre types 22,28,29 . In this study, frequency domain analysis was performed to determine the muscle fibre type recruitment pattern of the SM muscle during the different feeding tasks and at exercise.…”

Section: Methodsmentioning

confidence: 99%

Laryngeal reinnervation using the spinal accessory nerve: Electromyographic study of the sternomandibularis muscle

Schweitzer¹,

Mespoulhès-Rivière

Möller

et al. 2022

Equine Veterinary Journal

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Background: Selective laryngeal reinnervation using the first and second cervical nerve (C1C2) is a treatment option for recurrent laryngeal neuropathy that aims to restore the function of the cricoarytenoideus dorsalis (CAD) muscle. Despite the technique's satisfying success rate, it has several limitations. These triggered the search for another potential donor nerve that could reduce CAD muscle fatigue and shorten rehabilitation. The ventral branch of the spinal accessory nerve, providing motor innervation to the sternomandibularis (SM) muscle, was identified as a potentially well-adapted nerve. Objectives: To gather normative data from SM muscle activity induced by physiological spinal accessory nerve stimulation at rest and during exercise, and to determine SM muscle activity and fibre type recruitment relative to posture, gait and respiratory cycle. Study design: Clinical observational study. Methods: Surface electromyography (EMG) of the SM muscle was performed in nine horses: trained warmbloods, Thoroughbreds and Standardbreds. Signals were recorded in different feeding postures and at exercise, which included standardised treadmill exercise tests, lungeing and ridden work.Results: Timing of the SM muscle contraction coincided with inspiration at gallop. Intra-individual mean SM muscle activity increased with exercising speed (four times higher in Thoroughbreds at gallop than walk and seven times higher in Standardbreds at high-speed trot than walk). Moreover, the SM muscle was strongly activated at rest when the horse was grazing (seven times more than when it was eating out of a hay net or stable feeder). Frequency domain analysis revealed a predominant type I muscle fibre recruitment during feeding and at exercise (type I muscle fibre activity was at least 2.5 times higher than type II muscle fibre activity).Main limitations: Lack of reference data on equine EMG.Conclusions: This study confirmed the potentially advantageous properties of the spinal accessory nerve for laryngeal reinnervation.

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Section: Methodsmentioning

confidence: 99%

Laryngeal reinnervation using the spinal accessory nerve: Electromyographic study of the sternomandibularis muscle

Schweitzer¹,

Mespoulhès-Rivière

Möller

et al. 2022

Equine Veterinary Journal

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“…Im Verlauf des afferenten Informationenflusses trägt eine direkte und sehr wirkungsvolle Aktivierung der γ-Motoneuronen über eine Art Servomechanismus zur Regulation der Muskelsteifigkeit und somit zur funktionellen Stabilisation des Knies bei 28 .…”

Section: Knietests – Landing Error Score System (Less)unclassified

“…Funktionsverlust kann nicht nur durch Muskelatrophie erklärt werden, sondern ist auch Folge einer verminderten zentralen Aktivierungsfähigkeit, verminderter Entladungsraten bis zum Verlust von Motoneuronen, einer veränderten synaptischen Übertragung des Aktionspotenzials und eines Sensitivitätsverlusts der Muskelspindeln 28 .…”

Section: Knietests – Landing Error Score System (Less)unclassified

“…Aspekt der Wechselwirkungen zwischen Vision und Somatosensation: Das visuelle System bietet einen grundlegenden Mechanismus für die Koordination, Regulierung und Kontrolle der Bewegung bei gleichzeitiger Steuerung von Umweltinteraktionen. Wie oben beschrieben, zeigen zahlreiche Studien bereits, dass sich nach einer VKB-Ruptur die Gewichtung dieser Wechselwirkungen zwischen Vision und Somatosensation verändert 8 , 13 , 14 , 19 , 20 , 29 , 30 , 36 – 38 , 43 , 50 . Genau auf dieses verletzungsinduzierte Adaptationsmuster im rehabilitativen Training und insbesondere im Rahmen einer Testung abzuzielen, scheint eine einzigartige Gelegenheit zu sein 20 , um die zentralnervösen Veränderungen und die damit verbundenen Dysfunktionen nach einer Verletzung genauer evaluieren zu können.…”

Section: Knietests – Landing Error Score System (Less)unclassified

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Software-Update – Sensomotorische Defizite nach VKB-Ruptur

Szep¹

2022

physiopraxis

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Nicht nur bei anhaltenden Schmerzen sind zentralnervöse Veränderungen und damit verbundene Dysfunktionen zu beobachten. Jede Verletzung beeinträchtigt das sensomotorische System und verändert so nachhaltig die Funktion. Physiotherapeut Paul Szep zeigt anhand zweier Tests auf, wie sich sensomotorische Defizite nach einer Ruptur des vorderen Kreuzbandes testen lassen und warum der Blick auf die Hardware allein nicht ausreicht.

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Leistungen des sensomotorischen Systems und Schmerz

Cited by 2 publications

References 6 publications

Laryngeal reinnervation using the spinal accessory nerve: Electromyographic study of the sternomandibularis muscle

Laryngeal reinnervation using the spinal accessory nerve: Electromyographic study of the sternomandibularis muscle

Software-Update – Sensomotorische Defizite nach VKB-Ruptur

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