scholarly journals Jaw–neck motor strategy during jaw‐opening with resistance load

2021 ◽  
Author(s):  
Alicia Böthun ◽  
Birgitta Häggman‐Henrikson ◽  
Birgitta Wiesinger ◽  
Anders Wänman ◽  
Fredrik Hellström ◽  
...  
Keyword(s):  
Motor Strategy ◽  
Jaw Opening

Reciprocal Interactions between the Rhythmical Jaw Movements and the Jaw Opening Reflex in the Rat

1990 ◽  
Vol 44 (2) ◽  
pp. 440-453 ◽  
Author(s):  
Kazuo Saeki ◽  
Masahiro Ohta ◽  
Satoru Ishizuka ◽  
Makoto Iwasaki
Keyword(s):  
Jaw Movements ◽  
Reciprocal Interactions ◽  
Jaw Opening ◽  
Jaw Opening Reflex

scholarly journals Isolated Dysphagia in a Patient with Medial Medullary Infarction – Effects of Evidence-Based Dysphagia Therapy: A Case Report

2021 ◽  
pp. 190-199
Author(s):  
Samra Hamzic ◽  
Patrick Schramm ◽  
Hassan Khilan ◽  
Tibo Gerriets ◽  
Martin Juenemann
Keyword(s):  
Case Report ◽  
Vascular Occlusion ◽  
Evidence Based ◽  
Severe Dysphagia ◽  
First Case ◽  
Jaw Opening ◽  
Medial Medullary Infarction ◽  
Dysphagia Therapy ◽  
Evidence Based Therapy ◽  
Medullary Infarction

Medial medullary infarction (MMI) is a vascular occlusion in the medulla oblongata leading to certain constellations of neurological symptoms and seriously affecting the patient. Effective evidence-based treatment of severe dysphagia as sole symptom of MMI has not yet been reported. This case study aims to report successful effects of evidence-based therapy based on findings of dysphagia symptoms and pathophysiology of swallowing by flexible endoscopic evaluation of swallowing (FEES) in severe isolated dysphagia after MMI. FEES was performed to evaluate swallowing pathophysiology and dysphagia symptoms in a 57-year-old male with severe dysphagia after MMI. On the basis of FEES findings, simple and high-frequent evidence-based exercises for improvement of swallowing were implemented: thermal stimulation of faucial arches, Jaw Opening Exercise, and Jaw Opening Against Resistance. After 7 weeks of high-frequent evidence-based therapy and regular FEES evaluation the patient was set on full oral diet with no evidence of aspiration risk. In a first case report of isolated dysphagia in MMI our case illustrates that high-frequent evidence-based dysphagia therapy in combination with FEES as the method to evaluate and monitor swallowing pathophysiology can lead to successful and quick rehabilitation of severely affected dysphagic patients.

scholarly journals Effect of Head Elevation on Passive Upper Airway Collapsibility in Normal Subjects during Propofol Anesthesia

2011 ◽  
Vol 115 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Masato Kobayashi ◽  
Takao Ayuse ◽  
Yuko Hoshino ◽  
Shinji Kurata ◽  
Shunji Moromugi ◽  
...  
Keyword(s):  
Upper Airway ◽  
Normal Subjects ◽  
Target Concentration ◽  
Airway Patency ◽  
Head Elevation ◽  
Jaw Opening ◽  
Airway Collapsibility ◽  
Upper Airway Collapsibility ◽  
Head Flexion ◽  
Male Subjects

Background Head elevation can restore airway patency during anesthesia, although its effect may be offset by concomitant bite opening or accidental neck flexion. The aim of this study is to examine the effect of head elevation on the passive upper airway collapsibility during propofol anesthesia. Method Twenty male subjects were studied, randomized to one of two experimental groups: fixed-jaw or free-jaw. Propofol infusion was used for induction and to maintain blood at a constant target concentration between 1.5 and 2.0 μg/ml. Nasal mask pressure (PN) was intermittently reduced to evaluate the upper airway collapsibility (passive PCRIT) and upstream resistance (RUS) at each level of head elevation (0, 3, 6, and 9 cm). The authors measured the Frankfort plane (head flexion) and the mandible plane (jaw opening) angles at each level of head elevation. Analysis of variance was used to determine the effect of head elevation on PCRIT, head flexion, and jaw opening within each group. Results In both groups the Frankfort plane and mandible plane angles increased with head elevation (P < 0.05), although the mandible plane angle was smaller in the free-jaw group (i.e., increased jaw opening). In the fixed-jaw group, head elevation decreased upper airway collapsibility (PCRIT ~ -7 cm H₂O at greater than 6 cm elevation) compared with the baseline position (PCRIT ~ -3 cm H₂O at 0 cm elevation; P < 0.05). Conclusion : Elevating the head position by 6 cm while ensuring mouth closure (centric occlusion) produces substantial decreases in upper airway collapsibility and maintains upper airway patency during anesthesia.

scholarly journals Pursuing Artful Movement Science in Music Performance: Single Subject Motor Analysis With Two Elite Pianists

2021 ◽  
pp. 003151252110034
Author(s):  
Craig Turner ◽  
Peter Visentin ◽  
Deanna Oye ◽  
Scott Rathwell ◽  
Gongbing Shan
Keyword(s):  
Motor Learning ◽  
Music Performance ◽  
Force Plate ◽  
Left Shoulder ◽  
Single Subject ◽  
Performance Variables ◽  
Motor Behaviors ◽  
Piano Students ◽  
Motor Strategy ◽  
The Right

Piano performance motor learning research requires more “artful” methodologies if it is to meaningfully address music performance as a corporeal art. To date, research has been sparse and it has typically constrained multiple performance variables in order to isolate specific phenomena. This approach has denied the fundamental ethos of music performance which, for elite performers, is an act of interpretation, not mere reproduction. Piano performances are intentionally manipulated for artistic expression. We documented motor movements in the complex task of performance of the first six measures of Chopin’s “Revolutionary” Etude by two anthropometrically different elite pianists. We then discussed their motor strategy selections as influenced by anthropometry and the composer’s musical directives. To quantify the joint angles of the trunk, shoulders, elbows, and wrists, we used a VICON 3 D motion capture system and biomechanical modeling. A Kistler force plate (1 N, Swiss) quantified center of gravity (COG) shifts. Changes in COG and trunk angles had considerable influence on the distal segments of the upper limbs. The shorter pianist used an anticipatory strategy, employing larger shifts in COG and trunk angles to produce dynamic stability as compensation for a smaller stature. Both pianists took advantage of low inertial left shoulder internal rotation and adduction to accommodate large leaps in the music. For the right arm, motor strategizing was confounded by rests in the music. These two cases illustrated, in principle, that expert pianists’ individualized motor behaviors can be explained as compensatory efforts to accommodate both musical goals and anthropometric constraints. Motor learning among piano students can benefit from systematic attention to motor strategies that consider both of these factors.

Botulinum Toxin for Treatment of Jaw Opening Dystonia in Hallervorden-Spatz Syndrome

2001 ◽  
Vol 45 (4) ◽  
pp. 287-288 ◽  
Author(s):  
D. Dressler ◽  
M. Wittstock ◽  
R. Benecke
Keyword(s):  
Botulinum Toxin ◽  
Jaw Opening

scholarly journals Alteration in global motor strategy following lateral ankle sprain

2014 ◽  
Vol 15 (1) ◽  
Author(s):  
Maude Bastien ◽  
Hélène Moffet ◽  
Laurent J Bouyer ◽  
Marc Perron ◽  
Luc J Hébert ◽  
...  
Keyword(s):  
Ankle Sprain ◽  
Lateral Ankle Sprain ◽  
Lateral Ankle ◽  
Motor Strategy
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