Effects of Tongue-Strengthening Exercise on Tongue Strength Reserve and Detraining Effects among Healthy Adults: A Randomized Controlled Trial

Hui-Ling Hsiao, Jiunn-Horng Lou, Chun-Chieh Wang, Yun-Ju Lai, Shang-Jung Wu and Yueh-Juen Hwu
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Hui-Ling Hsiao: Department of Nursing, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
Jiunn-Horng Lou: Department of Nursing, Hsin Sheng Junior College of Medical Care and Management, Taoyuan 32544, Taiwan
Chun-Chieh Wang: Department of Internal Medicine, Taichung Veterans General Hospital Puli Branch, Nantou 54552, Taiwan
Yun-Ju Lai: Department of Internal Medicine, Taichung Veterans General Hospital Puli Branch, Nantou 54552, Taiwan
Shang-Jung Wu: Department of Nursing, Taichung Veterans General Hospital Puli Branch, Nantou 54552, Taiwan
Yueh-Juen Hwu: College of Nursing, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan

IJERPH, 2022, vol. 19, issue 11, 1-20

Abstract: Introduction: Tongue strength reserve is the difference between the maximum isometric pressure (MIP) and swallowing pressure of the tongue. People with decreased tongue strength reserve may have a higher risk of presbyphagia or dysphagia. Thus, this study explored the effects of tongue strengthening exercise (TSE) on tongue strength reserve and detraining effects in healthy adults. Materials and Methods: In total, 102 healthy volunteers without any reported history of speech or swallowing deficits were recruited and assigned to experimental ( n = 50) and control groups ( n = 52). Exercises in the experimental group consisted of compressing an air-filled bulb between the tongue and hard palate for 30 min a day, 5 days a week, for 8 weeks. Thereafter, the experimental group underwent a 4-week detraining period. Results: Following the TSE training, posterior tongue strength reserve (F = 4.92, p = 0.029) of the experimental group was significantly higher than that of the control group. No significant detraining effects were observed on the MIP and swallowing pressure from 4 weeks after the completion of TSE training. Conclusions: According to the study results, TSE may be an effective approach for improving swallowing function.

Keywords: tongue-strengthening exercise; swallowing pressure; tongue strength; presbyphagia (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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