Oral diadochokinesis is related to decline in swallowing function among community-dwelling Japanese elderly: a cross-sectional study

Takeuchi, Noriko; Sawada, Nanami; Ekuni, Daisuke; Morita, Manabu

doi:10.1007/s40520-020-01547-7

Cited by 28 publications

(32 citation statements)

References 17 publications

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“…The previous studies indicated a crucial role of tongue pressure or MTP in swallowing [24][25][26][27]. The key role of tongue-lip motor function in swallowing was suggested in several studies [28,29] and the studies also showed the prevalence of the elderly people who showed declined swallowing function and lower ODK [30][31][32]. Regarding tongue-lip motor function (ODK), clear evidence for the association of ODK with swallowing function is still insufficient, because there have been few studies that evaluated swallowing function using three of tongue-lip motor functions proposed by Minakuchi et al On this point, this study demonstrated the significance of motor function of posterior region of tongue (ODK /ka/) as a result of three kinds of ODK evaluations.…”

Section: Discussionmentioning

confidence: 98%

Analyses of Swallowing Function and Its Related Factors in Community-Dwelling Elderly Patients: A Case-Control Study

Ogino

Suzuki

Ayukawa

et al. 2021

JCM

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This retrospective case-control study evaluated the prevalence of declined swallowing function and the association with oral functions and gender in community-dwelling elderly patients. Their profiles, the results of swallowing function (Eating Assessment Tool: EAT-10) and other oral functions (oral dryness, maximum occlusal force (MOF), tongue–lip motor function (oral diadochokinesis: ODK), maximum tongue pressure (MTP) and masticatory performance (MP)) were extracted for analyses. The patients were categorized into three groups according to EAT-10 score (Group 1: 0, Group 2: 1 and 2, Group 3: ≥3). In total, 242 patients were enrolled and 46 of them (19.0%) were categorized into declined swallowing function (Group 3). In two-group comparisons (Group 1, 2 versus Group 3), significant differences were identified in age and the number of remaining teeth, but they were not identified in three-group comparisons. The patients with declined swallowing function (Group 3) had significantly lower function in ODK and MTP. Multiple logistic regression analyses identified that declined swallowing function was independently associated with declined functions in ODK /ka/ (OR: 5.31, 95% CI: 1.03–27.23, p = 0.04) and in MTP (OR: 2.74, 95% CI: 1.12–6.66, p = 0.03). This study could confirm the critical role of tongue functions in swallowing in community-dwelling elderly patients.

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Section: Discussionmentioning

confidence: 98%

Analyses of Swallowing Function and Its Related Factors in Community-Dwelling Elderly Patients: A Case-Control Study

Ogino

Suzuki

Ayukawa

et al. 2021

JCM

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“…Samples for bacterial counts on the dorsum of the tongue were collected by rubbing the central part of the tongue with a sterile cotton swab [16]. A 1-cm distance was rubbed back and forth three times.…”

Section: Bacterial Counts On the Dorsum Of The Tonguementioning

confidence: 99%

Oral Factors as Predictors of Frailty in Community-Dwelling Older People: A Prospective Cohort Study

Takeuchi

Sawada

Ekuni

et al. 2022

IJERPH

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The purpose of this prospective cohort study was to identify predictors for frailty among possible oral factors in community-dwelling older people. Ninety-seven participants (≥60 years old) without frailty at baseline were included and assigned to either the robust or the frailty group after 2-year follow-up. The frailty was defined using the Japan Cardiovascular Health Study index. The numbers of present and functional teeth and periodontal disease severity were recorded. Bacterial counts on the dorsum of the tongue, oral moisture, tongue pressure, occlusal force, masticatory ability, and the oral diadochokinesis (ODK) rate were measured. Swallowing function, along with psychosocial status, relationships with communities and people, nutritional status, medical history, and comorbidities were evaluated using a questionnaire. The newly identified frailty group at follow-up showed significantly lower values in the number of teeth present, ODK/ta/sound and ODK/ka/sound rates, and clinical attachment level at baseline compared to the robust group. A logistic regression model showed a significantly negative association between the ODK/ta/sound rate at baseline and the incidence of frailty. Articulatory oral motor skill was found to be a predictor of frailty after two years.

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“…In this study, tongue functions included tongue motor function and maximum tongue pressure. Tongue motor function was determined by oral diadochokinesis (ODK) [28,29]. Patients were asked to utter /ta/ repeatedly as quickly as possible for 5 seconds.…”

Section: Assessment Of Tongue Functionsmentioning

confidence: 99%

“…Swallowing function was assessed using Eating Assessment Tool (EAT-10) score. This self-administered, symptom-speci c outcome instrument has been utilized for diagnosis of dysphagia [27][28][29].…”

Section: Assessment Of Swallowing Functionmentioning

confidence: 99%

A Retrospective Cross-Sectional Analyses of Swallowing and Tongue Functions in Maxillectomy Patients

Ogino

Fujikawa

Koga

et al. 2021

Preprint

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Purpose To investigate the profiles of swallowing and tongue functions, and to identify factors influencing swallowing in maxillectomy patients. Methods Maxillectomy patients whose swallowing function defined by Eating Assessment Tool (EAT-10) score and tongue functions (oral diadochokinesis: ODK, maximum tongue pressure: MTP) with or without maxillofacial prostheses had been evaluated were enrolled in this study. The effects of the history of radiotherapy or soft palate resection on swallowing function were evaluated. The effect of radiotherapy on oral dryness was also evaluated. To examine correlations of swallowing function with continuous variables, Spearman correlation coefficients were calculated. Results A total of 47 maxillectomy patients (23 males and 24 females, median age:71 [IQR: 63–76]) were registered. The median value of EAT-10 scores was 3 [IQR: 0–14]. Patients with the history of radiotherapy, but not with soft palate resection, showed significantly declined swallowing function. ODK and MTP of patients wearing maxillofacial prostheses were significantly improved. No significant effect of radiotherapy on oral dryness was found. A significant correlation was found between EAT-10 score and MTP (P = 0.04). Conclusions Swallowing function in maxillectomy patients was relatively impaired and the patients with the history of radiotherapy showed lower swallowing function. Maxillofacial prostheses could contribute to the improvement of MTP and ODK (/ta/). MTP may play a crucial role in swallowing in maxillectomy patients.

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Oral diadochokinesis is related to decline in swallowing function among community-dwelling Japanese elderly: a cross-sectional study

Cited by 28 publications

References 17 publications

Analyses of Swallowing Function and Its Related Factors in Community-Dwelling Elderly Patients: A Case-Control Study

Analyses of Swallowing Function and Its Related Factors in Community-Dwelling Elderly Patients: A Case-Control Study

Oral Factors as Predictors of Frailty in Community-Dwelling Older People: A Prospective Cohort Study

A Retrospective Cross-Sectional Analyses of Swallowing and Tongue Functions in Maxillectomy Patients

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