Effects of water viscosity and tongue ingestion site on tongue pressure during food bolus propulsion

2018 ◽  
Vol 45 (5) ◽  
pp. 371-377 ◽  
Author(s):  
T. Iguchi ◽  
M. Ohkubo ◽  
T. Sugiyama ◽  
K. Hori ◽  
T. Ono ◽  
...  
Keyword(s):  
Tongue Pressure ◽  
Food Bolus ◽  
Water Viscosity ◽  
Bolus Propulsion

Lingual Propulsive Pressures Across Consistencies Generated by the Anteromedian and Posteromedian Tongue by Healthy Young Adults

2012 ◽  
Vol 55 (3) ◽  
pp. 960-972 ◽  
Author(s):  
Laura L. Gingrich ◽  
Julie A. G. Stierwalt ◽  
Carlin F. Hageman ◽  
Leonard L. LaPointe
Keyword(s):  
Young Adults ◽  
Gender Difference ◽  
Repeated Measures ◽  
Tongue Pressure ◽  
Oral Performance ◽  
Repeated Measures Analysis ◽  
Bolus Viscosity ◽  
Bolus Propulsion ◽  
Posterior Tongue ◽  
Healthy Participants

Purpose In the present study, the authors investigated lingual propulsive pressures generated in the normal swallow by the anterior and posterior lingual segments for various consistencies and maximum isometric tasks. Method Lingual pressures for saliva, thin, and honey-thick liquid boluses were measured via the Iowa Oral Performance Instrument (IOPI Medical, Carnation, WA) at both anteromedian and posteromedian lingual segments of 62 healthy participants, ages 18–34 years (30 men, 32 women). Results A repeated-measures analysis of variance revealed that all lingual swallowing pressures were significantly greater at the anteromedian segment than at the posteromedian segment. Gender was not a significant factor; however, women exhibited greater swallowing pressures across all conditions. Lingual pressures increased as bolus viscosity increased. No significant interactions existed. Analysis of a subset of 30 participants revealed that men exhibited greater maximal isometric pressure at the anteromedian segment than women, with no significant gender difference at the posteromedian segment. A significantly higher percentage of maximum isometric tongue pressure was exerted by the posteromedian tongue than by the anteromedian tongue. Conclusion Findings suggest that greater amplitudes of lingual pressures are generated during normal swallowing at the anteromedian lingual segment; however, a greater percentage of maximum isometric tongue pressure was exerted by the posteromedian lingual segment, suggesting increased effort by the posterior tongue during bolus propulsion.

Instrumentation for Measurement of Lingual Strength

1968 ◽  
Vol 11 (1) ◽  
pp. 189-193 ◽  
Author(s):  
Lois Joan Sanders
Keyword(s):  
Single Channel ◽  
Displacement Transducer ◽  
Tongue Pressure ◽  
Maximum Pressure ◽  
Research Use ◽  
Direct Writing ◽  
Significant Difference ◽  
Pressure Unit ◽  
Force Displacement ◽  
Consistent Response

A tongue pressure unit for measurement of lingual strength and patterns of tongue pressure is described. It consists of a force displacement transducer, a single channel, direct writing recording system, and a specially designed tongue pressure disk, head stabilizer, and pressure unit holder. Calibration with known weights indicated an essentially linear and consistent response. An evaluation of subject reliability in which 17 young adults were tested on two occasions revealed no significant difference in maximum pressure exerted during the two test trials. Suggestions for clinical and research use of the instrumentation are noted.

Lingual Strengthening: Success in an Outpatient Setting

2015 ◽  
Vol 24 (2) ◽  
pp. 71-74
Author(s):  
Ali Meier
Keyword(s):  
Oropharyngeal Dysphagia ◽  
Patient Discharge ◽  
Outpatient Setting ◽  
Oral Performance ◽  
Exercise Protocol ◽  
Anterior Position ◽  
Tongue Position ◽  
Bolus Propulsion ◽  
Posterior Position

In the last decade or more, dysphagia research has investigated the effect of lingual strengthening on oropharyngeal dysphagia with promising results. Much of this research has utilized strengthening devices such as the Iowa Oral Performance Instrument (IOPI) or the Madison Oral Strengthening Therapeutic (MOST) Device. Patients are often given a device to use, and are able to complete an exercise protocol daily or multiple times per day. This case study was completed to determine the effectiveness of using the IOPI in an outpatient clinic where therapy was conducted two to three times per week. The patient was seen post tongue resection due to oropharyngeal cancer. From initiation of IOPI use to patient discharge, the patient demonstrated a 71% increase in lingual strength at the anterior position, a 61% increase at the posterior position, and a 314% increase at the base of tongue position. His diet advanced from NPO to general based on gains in lingual strength and bolus propulsion.

scholarly journals Longitudinal Changes of Tongue Thickness and Tongue Pressure in Neuromuscular Disorders

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
George Umemoto ◽  
Shinsuke Fujioka ◽  
Hajime Arahata ◽  
Nobutaka Sakae ◽  
Naokazu Sasagasako ◽  
...  
Keyword(s):  
Neuromuscular Disorders ◽  
The Other ◽  
Tongue Pressure ◽  
Swallowing Function ◽  
Longitudinal Changes ◽  
Swallowing Dysfunction ◽  
The Relationship ◽  
Lateral Sclerosis

Abstract Background Swallowing dysfunction is related to major cause of adverse events and an indicator of shorter survival among patients with neuromuscular disorders (NMD). It is critical to assess the swallowing function during disease progression, however, there are limited tools that can easily evaluate swallowing function without using videofluoroscopic or videoendoscopic examination. Here, we evaluated the longitudinal changes in tongue thickness (TT) and maximum tongue pressure (MTP) among patients with amyotrophic lateral sclerosis (ALS), myotonic dystrophy type 1 (DM1), and Duchenne muscular dystrophy (DMD). Methods Between 2010 and 2020, TT and MTP were measured from 21 ALS, 30 DM1, and 14 DMD patients (mean ages of 66.9, 44.5, and 21.4 years, respectively) at intervals of more than half a year. TT was measured, by ultrasonography, as the distance from the mylohyoid muscle raphe to the tongue dorsum, and MTP was determined by measuring the maximum compression on a small balloon when pressing the tongue against the palate. Then we examined the relationship between these evaluations and patient background and swallowing function. Results Mean follow-up periods were 24.0 months in the ALS group, 47.2 months in the DM1group, and 61.1 months in the DMD group. The DMD group demonstrated larger first TT than the other groups, while the DM1 group had lower first MTP than the ALS group. The ALS group showed a greater average monthly reduction in mean TT than the DM1 group and greater monthly reductions in mean body weight (BW) and MTP than the other groups. Significant differences between the first and last BW, TT, and MTP measures were found only in the ALS group. Conclusions This study suggests that ALS is associated with more rapid degeneration of tongue function over several years compared to DMD and DM1.

Effect of fracture properties of gels on tongue pressure during different phases of squeezing and swallowing

2021 ◽  
Author(s):  
Kazuhiro Murakami ◽  
Yoshitsugu Tokuda ◽  
Kazuhiro Hori ◽  
Yoshitomo Minagi ◽  
Fumiko Uehara ◽  
...  
Keyword(s):  
Tongue Pressure ◽  
Fracture Properties

scholarly journals The reciprocal jaw-muscle reflexes elicited by anterior- and back-tooth-contacts—a perspective to explain the control of the masticatory muscles

BDJ Open ◽  
2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Lauri Vaahtoniemi
Keyword(s):  
Masticatory Muscles ◽  
Food Bolus ◽  
Dental Patients ◽  
Adductor Muscles ◽  
Jaw Muscle ◽  
Class 1 ◽  
Reflex Control ◽  
Control Hypothesis ◽  
Muscle Reflexes ◽  
Inhibitory Reflex

Abstract Aims Tooth-contact sensations are considered essential to boost jaw adductor muscles during mastication. However, no previous studies have explained the importance of the inhibitory reflex of human anterior-tooth (ANT)-contacts in mastication. Here I present the “reciprocal reflex-control-hypothesis” of mammalian mastication. Subjects and setting of the study I demonstrate the hypothesis with the live kinematics of free jaw-closures as inferred from T-Scan recordings of dental patients. Results The jaw-closures started with negligible force, predominantly with ANT-contacts (the AF-bites). The first ANT-contact inhibited the first kinematic tilt of the mandible, whereas the bites starting from a back-tooth (BAT)-contact (the BF-bites) accelerated the first tilt. The second tilt established a low-force static tripod of the ANT- and bilateral BAT-contacts for a fixed mandible-maxilla relation. Thereafter, semi-static bite force increased rapidly, relatively more in the BAT-area. Discussion and Conclusions In the vertical-closure phase of chewing, the primate joint-fulcrum (class 3 lever) conflicts with the food-bolus-fulcrum in the BAT-area (class 1 lever). The resilient class 3 and 1 lever systems are superseded by an almost static mechanically more advantageous class 2 lever with a more rigid fulcrum at the most anterior ANT-contact. For humans, the class 2 levered delivery of force also enables forceful horizontal food grinding to be extended widely to the BAT-area.

scholarly journals Relationship between Oral Hypofunction and Sarcopenia in Community-Dwelling Older Adults: The Otassha Study

2021 ◽  
Vol 18 (12) ◽  
pp. 6666
Author(s):  
Yoshihiro Kugimiya ◽  
Masanori Iwasaki ◽  
Yuki Ohara ◽  
Keiko Motokawa ◽  
Ayako Edahiro ◽  
...  
Keyword(s):  
Older Adults ◽  
Logistic Regression ◽  
Cross Sectional Study ◽  
Albumin Level ◽  
Community Dwelling ◽  
Tongue Pressure ◽  
Swallowing Function ◽  
Cross Sectional ◽  
Community Dwelling Older Adults ◽  
The Relationship

Oral hypofunction, resulting from a combined decrease in multiple oral functions, may affect systemic-condition deterioration; however, few studies have examined the association between oral hypofunction and general health among older adults. In this cross-sectional study, we examined the relationship between oral hypofunction and sarcopenia in community-dwelling older adults. We included 878 adults (268 men and 610 women, mean age 76.5 ± 8.3 years). Tongue coating index, oral moisture, occlusal force, oral diadochokinesis (/pa/,/ta/,/ka/), tongue pressure, mas-ticatory function, and swallowing function were evaluated as indicators of oral hypofunction. Grip strength, gait speed, and skeletal muscle mass index were measured as diagnostic sarcopenia parameters. The association between oral hypofunction and sarcopenia was examined via logistic regression using sarcopenia as the dependent variable. Oral hypofunction prevalence was 50.5% overall, 40.3% in men, and 54.9% in women. The prevalence of sarcopenia was 18.6% overall, 9.7% in men, and 22.5% in women. A logistic regression showed oral hypofunction, age, body mass index, higher-level functional capacity, and serum albumin level were significantly associated with sarcopenia. Sarcopenia occurred at an increased frequency in patients diagnosed with oral hypofunction (odds ratio: 1.59, 95% confidence interval: 1.02–2.47); accordingly, oral hypofunction appears to be significantly associated with sarcopenia.

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