• Donghwan Oh, Han Sol Park, Myung Won Park, Ho Jeong Kim, Wan Young Choi, and Ji-Su Park.
• Department of Occupational Therapy, Kyungdong University, Munmak-eup, Wonju-si, Gangwon-do, Republic of Korea.
• Medicine (Baltimore). 2023 Mar 31; 102 (13): e33257e33257.

IntroductionChin-tuck are effective in patients with dysphagia, where aspiration can occur due to pharyngeal swallowing delays. This study aims to verify whether Chin-tuck Assistant System Maneuver (CAS-M) supplemented with Chin-Tuck Maneuver (CTM) is effective for learning and maintaining correct chin-tuck postures. In addition, we investigated the possibility of using CAS-M as a customized rehabilitation treatment program for patients with poor cognitive ability, attention issues, and general swallowing disorders.InterventionTo demonstrate the effectiveness of CAS, we recruited 52 healthy adults and assigned them to 2 groups. The CTM group was trained to maintain the correct chin-tuck posture using the general Chin-Tuck Maneuver, while the CAS-M group was trained using CAS. Four evaluations were conducted using CAS to investigate the degree of postural maintenance of chin-tuck before and after intervention.ResultsThe CAS-M group showed a statistically significant difference in TIME, BEEP, and change (P < .05), but the CTM group showed no statistically significant differences (P < .05). YZ evaluation showed no statistically significant differences in both groups.ConclusionAfter examining the effects of CAS-M using CAS on healthy adults, we confirmed this to be a more effective method for correct chin-tuck posture than conventional CTM.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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