腸音解析を用いたMiyajima式腹部圧迫法の排便促進効果

The Effect of Miyajima's Abdominal Pressing Method on the Improvement of Defecation by Bowel Sound Analysis

要旨

　本研究の目的は Miyajima 式腹部圧迫法の排便促進効果を明らかにすることである. 対象者は健康な女性20名 (20～36歳, 対照群23.1±4.6歳, 圧迫群25.4±6.1歳) である. 対象者を2群に分け, 腸音波形・日阪語版便秘評価尺度 (CAS)・排便状態の自覚を比較した. 腸音波形は圧迫後0～1分・1～2分・2～3分・3～4分・4～5分の区間解析を行い, 安静時との変化率を算出した. 　その結果, 圧迫群の振幅の平均値は0～1分後で有意に低かった(P＜0.05). 圧迫群の振幅の標準偏差はすべての区間で有意に高かった (P＜0.01). 圧迫群の振幅の面積は0～1分後・2～3分後・4～5分後で有意に高かった (p＜0.01, p＜0.05, p＜0.05). 圧迫群の CAS の便秘者は便秘が軽減した. 圧迫群の2名が圧迫後10分以内に, 6名が圧迫後24時間以内に排便した. 圧迫群の1名が圧迫中,4名が圧迫後10分以内に, 9名が圧迫後24時問に排ガスした. 圧迫群の7名が圧迫中, 6名が圧迫後10分以内に, 7名が圧迫後24時間以内に腸蠕動亢進を自覚した. 圧迫群は排便促進効果を8名が自覚した．

　以上から, Miyajima式腹部圧迫法は排便促進効果があることが示唆された．

Abstract

　The purpose of this study is to prove the effect of Miyajima's abdominal pressing method on the improvement of defecation.

　Research subjects were twenty healthy women, 20-36 years old (average age: control group 23.1±4.6, pressure group 25.4±6.1). We compared the two groups by bowel sound wave, Japanese version constipation assessment scale (CAS), and awareness of defecation. Section analysis on bowel sound wave was performed. Sections were 0-1, 1-2, 2-3, 3-4, and 4-5 minutes after Miyajima's abdominal pressing method. Each section's data was converted into ratio in relation to the baseline data.

　The result revealed that the pressure group's average amplitude was significantly lower than the control group in section 0-1 (p＜0.05). Through standard deviation, the amplitude of the former group was significantly higher than the latter group in all sections (p＜0.01). The area of the amplitude was significantly wider in the pressure group as compared to the control group in 0-1 (p＜0.01), 2-3 and 4-5 (p＜0.05). CAS of two constipated subjects in the pressure group became lower. Two subjects had defecation within 10 minutes after abdominal pressure and six within 24 hours. One subject had gas during the procedure while four had flatus within 10 minutes after and nine within 24 hours. Seven subjects were aware of the increase in intestinal peristalsis during the pressure while six observed similar sign within 10 minutes after and seven within 24 hours. Overall, eight subjects recognized the effect on defecation.

　We, therefore, conclude Miyajima's abdominal pressing method has a positive effect on the improvement of defecation.