Association between Tongue Pressure and Jaw-Opening Force in Older Adults

Namiki, Chizuru; Hara, Koji; Yanagida, Ryosuke; Nakagawa, Kazuharu; Yamaguchi, Kohei; Okumura, Takuma; Tamai, Tomoe; Kurosawa, Yukiko; Komatsu, Takao; Tohara, Haruka

doi:10.3390/ijerph19169825

Cited by 4 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This strongly suggests that activation of the S‐hyo muscles contributed to exertion of the maximum effort of LP generation. This contention is also supported by one investigational study of community‐dwelling older adults, in which a positive correlation between the maximum LP value and the cross‐sectional muscle area of the geniohyoid muscle, rather than that of the I‐ton muscles was found 18 …”

Section: Discussionmentioning

confidence: 65%

“…This contention is also supported by one investigational study of community-dwelling older adults, in which a positive correlation between the maximum LP value and the cross-sectional muscle area of the geniohyoid muscle, rather than that of the I-ton muscles was found. 18 The MPF of the EMG burst of the S-hyo muscles in the early stage differed significantly among the four strength conditions; the stronger the LP was, the larger the MPF. This may be because differences in the number of activated muscle fibres depend on the LP strength.…”

Section: Discussionmentioning

confidence: 93%

See 1 more Smart Citation

Use of suction electrodes for measurement of intrinsic tongue muscular endurance during lingual pressure generation

Ita,

Magara,

Ochiai

et al. 2023

J of Oral Rehabilitation

View full text Add to dashboard Cite

BackgroundLingual pressure (LP) generation is cooperatively controlled not only by the intrinsic tongue (I‐ton) muscles but also by hyoid muscle activation. However, the measurement of endurance and fatigue properties of I‐ton muscles is difficult due to the instability of electrodes.ObjectiveThe purpose of this study was to apply suction electrodes to measure electromyograms (EMGs) of I‐ton muscle and to evaluate integrated EMG amplitude (iEMG) and mean power frequency (MPF) of EMG in the I‐ton and hyoid muscles performing continuous LP.MethodsTwenty healthy adult volunteers (10 males, 10 females, mean age 28.8 years) were instructed to perform 10‐s LP generation tasks at 25%, 50%, 75% and 100% of maximum LP in randomised order with visual feedback. During each task, EMGs of the I‐ton, suprahyoid (S‐hyo), infrahyoid (I‐hyo) and masseter (Mass) muscles were simultaneously recorded. The iEMG and MPF of EMG burst during 10‐s LP tasks were compared. The recording period was divided into three substages to analyse temporal changes with the Friedman test.ResultsDuring the 10‐s task, the iEMG significantly increased as the LP strength increased (p < .001). There was no time‐dependent change in the I‐ton iEMG; however, the MPF of the I‐ton EMG burst decreased in all tasks (p < .05). The S‐hyo and I‐hyo iEMGs gradually increased, especially with strong LP (p < .01).ConclusionWhile I‐ton muscles may easily fatigue during 10‐s LP generation, S‐hyo and I‐hyo muscles may help compensate for the weakened I‐ton muscle activity by increasing their activity to maintain LP.

show abstract

Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 93%

Use of suction electrodes for measurement of intrinsic tongue muscular endurance during lingual pressure generation

Ita,

Magara,

Ochiai

et al. 2023

J of Oral Rehabilitation

View full text Add to dashboard Cite

show abstract

“…The subjects were Eichner A patients and systemically healthy, and the hypotheses were that there were limited differences between males and females. As described, the values of these oral functions were associated with perioral muscle strength [8,[27][28][29]. The previous study showed that some oral functions in males were significantly higher than those in females [17].…”

Section: Discussionmentioning

confidence: 98%

“…Regarding MOF and MTP, both functions were closely associated with some perioral muscles [8,[27][28][29]. The development of these muscles in childhood, and sex differences are also associated with MOF and MTP in these generations [17,30,31].…”

Section: Discussionmentioning

confidence: 99%

An observational study of oral functions in patients aged from 20 to 49 years

Yoshioka,

Ogino,

Kawasaki

et al. 2024

J Oral Sci

View full text Add to dashboard Cite

Purpose:The purpose of this study was to analyze oral functions (MOF: maximum occlusal force; MTP: maximum tongue pressure; and MF: masticatory function) in Eichner A subjects aged from 20 to 49 years. Methods: The data of three oral functions in Eichner A patients aged from 20 to 49 years were extracted. The mean values, subjects with lower values than the thresholds, and the differences among ages, and between sexes were investigated retrospectively. Results: Although the mean values of these oral functions in 183 subjects were higher than the thresholds, the numbers of the subjects with lower values than the thresholds were 30 in MTP, 19 in MOF, and only three in MF. No significant effects of ages on all oral functions were identified and all functions in males were significantly higher than those in females. The subjects whose two functions were lower than the thresholds were nine females, eight of whom were associated with malalignment. Conclusion:Although the mean values of oral functions were higher than the thresholds, some patients showed lower values, especially in MOF and MTP, even though they were unaware of any inconvenience. Patients with malalignment might be associated with declined oral functions.

show abstract

“…Other researchers consider that the loss of muscle strength and occlusal function caused by tooth loss contributes to decreased tongue force [8,35]. Nonetheless, these studies found no positive or negative association between tongue pressure and the number of remaining teeth, which was expected to strengthen tongue pressure as compensation for tooth loss in order to maintain masticatory function [37]. Achieving optimal occlusal stability is crucial for ensuring safe swallowing [31].…”

Section: Discussionmentioning

confidence: 99%

Machine Learning Prediction of Tongue Pressure in Elderly Patients with Head and Neck Tumor: A Cross-Sectional Study

Han,

Bai,

Mogushi

et al. 2024

JCM

View full text Add to dashboard Cite

Background: This investigation sought to cross validate the predictors of tongue pressure recovery in elderly patients’ post-treatment for head and neck tumors, leveraging advanced machine learning techniques. Methods: By employing logistic regression, support vector regression, random forest, and extreme gradient boosting, the study analyzed an array of variables including patient demographics, surgery types, dental health status, and age, drawn from comprehensive medical records and direct tongue pressure assessments. Results: Among the models, logistic regression emerged as the most effective, demonstrating an accuracy of 0.630 [95% confidence interval (CI): 0.370–0.778], F1 score of 0.688 [95% confidence interval (CI): 0.435–0.853], precision of 0.611 [95% confidence interval (CI): 0.313–0.801], recall of 0.786 [95% confidence interval (CI): 0.413–0.938] and an area under the receiver operating characteristic curve of 0.626 [95% confidence interval (CI): 0.409–0.806]. This model distinctly highlighted the significance of glossectomy (p = 0.039), the presence of functional teeth (p = 0.043), and the patient’s age (p = 0.044) as pivotal factors influencing tongue pressure, setting the threshold for statistical significance at p < 0.05. Conclusions: The analysis underscored the critical role of glossectomy, the presence of functional natural teeth, and age as determinants of tongue pressure in logistics regression, with the presence of natural teeth and the tumor site located in the tongue consistently emerging as the key predictors across all computational models employed in this study.

show abstract

Association between Tongue Pressure and Jaw-Opening Force in Older Adults

Cited by 4 publications

References 30 publications

Use of suction electrodes for measurement of intrinsic tongue muscular endurance during lingual pressure generation

Use of suction electrodes for measurement of intrinsic tongue muscular endurance during lingual pressure generation

An observational study of oral functions in patients aged from 20 to 49 years

Machine Learning Prediction of Tongue Pressure in Elderly Patients with Head and Neck Tumor: A Cross-Sectional Study

Contact Info

Product

Resources

About