Abstract
The aim of this cross-sectional study was to investigate whether tongue strength observed in older adult inpatients of a rehabilitation hospital is associated with muscle function, nutritional status, and dysphagia. A total of 174 older adult inpatients aged 65 years and older in rehabilitation (64 men, 110 women; median age, 84 years; interquartile range, 80–89 years) who were suspected of having reduced tongue strength due to sarcopenia were included in this study. Isometric tongue strength was measured using a device fitted with a disposable oral balloon probe. We evaluated age, muscle function as assessed by the Barthel index and grip strength, nutritional status as measured by the Mini Nutritional Assessment—short form (MNA-SF), body mass index, serum albumin, controlling nutritional status, and calf circumference and arm muscle area to assess muscle mass. In addition, the functional oral intake scale (FOIS) was used as an index of dysphagia. Multivariate linear regression analysis revealed that isometric tongue strength was independently associated with grip strength (coefficient = 0.33, 95 % confidence interval (CI) 0.12–0.54, p = 0.002), MNA-SF (coefficient = 0.74, 95 % CI 0.12–1.35, p = 0.019), and FOIS (coefficient = 0.02, 95 % CI 0.00–0.15, p = 0.047). To maintain and improve tongue strength in association with sarcopenic dysphagia, exercise therapy and nutritional therapy interventions, as well as direct interventions to address tongue strength, may be effective in dysphagia rehabilitation in older adult inpatients.
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Acknowledgments
This study was supported by The Sumiko Okada International Fellowship Fund and the Grants-in-aid for scientific research (KAKENHI) (no. 16K19262).
Funding
This work was supported by The Sumiko Okada International Fellowship Fund and the Grants-in-aid for scientific research (KAKENHI) (no. 16K19262).
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The authors have no financial or any other kind of personal conflicts to disclose.
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The study protocol was approved by the Institutional Review Board of Setagaya Memorial Hospital (approval no. 2014-1). All enrolled patients provided their written informed consent.
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Sakai, K., Nakayama, E., Tohara, H. et al. Tongue Strength is Associated with Grip Strength and Nutritional Status in Older Adult Inpatients of a Rehabilitation Hospital. Dysphagia 32, 241–249 (2017). https://doi.org/10.1007/s00455-016-9751-5
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DOI: https://doi.org/10.1007/s00455-016-9751-5