Abstract
[Purpose] The aim of this study was to measure and compare the maximal tongue strength and tongue strength used during swallowing in young and older adults. [Subjects and Methods] The study recruited 80 healthy young (aged 20 to 39 years) and older adults (aged ≥65 years) in public places. The Iowa Oral Performance Instrument was used to measure maximal tongue strength and tongue strength used during swallowing. For each subject, the peak value of three measurements was recorded and analyzed. [Results] Maximal tongue strength was statistically significantly higher for the young adults group than the older adults group. Conversely, tongue strength used during swallowing was statistically significantly higher for the older adults group than the young adults group. The percentages of tongue strength used during swallowing for the young adults and older adults groups were approximately 38.8% and 53.8%, respectively. [Conclusion] This study confirmed that older adults have a lower maximal tongue strength than young adults, but a higher tongue strength used during swallowing.
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