Fig 1 - Maximal strength and endurance scores of the tongue, lip, and cheek in healthy, normal Koreans

Fig. 1. A. The Iowa Oral Performance Instrument (IOPI) is used to measure the pressure of the anatomical structures in the oral cavity. B. The position of the tongue bulb placed on the maxillary anterior hard palate area when measuring the maximal tongue strength and endurance score. C. The tongue bulb is placed in between two tongue depressors, the lips must be pursed forward with maximum force when measuring the maximal lip strength and endurance score.

A. The Iowa Oral Performance Instrument (IOPI) is used to measure the pressure of the anatomical structures in the oral cavity. B. The position of the tongue bulb placed on the maxillary anterior hard palate area when measuring the maximal tongue strength and endurance score. C. The tongue bulb is placed in between two tongue depressors, the lips must be pursed forward with maximum force when measuring the maximal lip strength and endurance score.

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Reference

Maximal strength and endurance scores of the tongue, lip, and cheek in healthy, normal Koreans - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/A-The-Iowa-Oral-Performance-Instrument-IOPI-is-used-to-measure-the-pressure-of-the_fig1_319467345 [accessed 22 May 2025]

Caption

Fig. 1. A. The Iowa Oral Performance Instrument (IOPI) is used to measure the pressure of the anatomical structures in the oral cavity. B. The position of the tongue bulb placed on the maxillary anterior hard palate area when measuring the maximal tongue strength and endurance score. C. The tongue bulb is placed in between two tongue depressors, the lips must be pursed forward with maximum force when measuring the maximal lip strength and endurance score.

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<a href="https://www.researchgate.net/figure/A-The-Iowa-Oral-Performance-Instrument-IOPI-is-used-to-measure-the-pressure-of-the_fig1_319467345"><img src="https://www.researchgate.net/publication/319467345/figure/fig1/AS:534885946150913@1504538155845/A-The-Iowa-Oral-Performance-Instrument-IOPI-is-used-to-measure-the-pressure-of-the.png" alt="A. The Iowa Oral Performance Instrument (IOPI) is used to measure the pressure of the anatomical structures in the oral cavity. B. The position of the tongue bulb placed on the maxillary anterior hard palate area when measuring the maximal tongue strength and endurance score. C. The tongue bulb is placed in between two tongue depressors, the lips must be pursed forward with maximum force when measuring the maximal lip strength and endurance score."/></a>