- 作者：Satoko Wada ; DDS ; Haruka Tohara ; DDS ; PhD ; haruka-t@rd5.so-net.ne.jp" class="auth_mail" title="E-mail the corresponding author ; Takatoshi Iida ; DDS ; Motoharu Inoue ; DDS ; Mitsuyasu Sato ; DDS ; Koichiro Ueda ; DDS ; PhD
- 关键词：Deglutition disorders ; Esophageal sphincter ; upper ; Exercise ; Rehabilitation
- 刊名：Archives of Physical Medicine and Rehabilitation
- 出版年：2012
- 出版时间：November 2012
- 年：2012
- 卷：93
- 期：11
- 页码：1995-1999
- 全文大小：476 K
Objective
To investigate the effects of the jaw-opening exercise on decreased upper esophageal sphincter (UES) opening while swallowing.
Design
Intervention study: before-after trial with 4-week follow-up evaluation.
Setting
A university school of dentistry dental hospital.
Participants
Patients with dysphagia (N=8; 7 men, 1 woman; average age ± SD, 70.5±11.3y; age range, 54–86y).
Interventions
All patients performed a jaw-opening exercise to strengthen the suprahyoid muscles. The exercise involved opening the jaw to its maximum and maintaining this position for 10 seconds. Each exercise set consisted of 5 repetitions, and 2 sets were carried out daily for 4 weeks. The effectiveness of the exercise was evaluated by a videofluorographic swallowing study (VFSS).
Main Outcome Measures
Hyoid elevation, UES opening, pharynx passage time, and pharyngeal residue after swallowing at preexercise and postexercise were compared by VFSS.
Results
Compared with before starting the exercise, significant improvements were observed in the extent of upward movement of the hyoid bone (P<.05), the amount of UES opening (P<.05), and the time for pharynx passage (P<.05) 4 weeks after initiating the exercise. Pharyngeal residue decreased in some subjects, and no increases were noted in any subjects.
Conclusions
The jaw-opening exercise is an effective treatment for dysphagia caused by dysfunction of hyoid elevation and UES opening.