压力生物反馈仪对腰部腹内压的重测信度研究

Test-retest reliability of the intra abdominal pressure by using pressure biofeedback

目的分析和探究压力生物反馈仪在测量腰部腹内压的重测信度。方法利用压力生物反馈仪对33名健康志愿者（20～27周岁）进行4个动作（动作A：俯卧位；动作B：仰卧位屈髋屈膝；动作C：仰卧位单侧屈髋屈膝；动作D：俯卧位肩关节前屈）的腹内压测试，测试2次，每天进行1次测量，24h后再测量1次。本研究重测信度评价指标为组内相关系数（ICC）。结果压力生物反馈仪测试4个动作的腰部腹内压的重测信度具有中等以上的相关性，ICC值为0．786～0.848。动作A[ICC（95％CI）为0．817（0．630～0．910）]、动作BEICC（95％CI）为0．848（0．692～0．925）]和动作D[ICC（95％CI）为0．841（0.678～0．921）]的腹内压测试具有良好的重测信度；动作C的腹内压测试具有中等的重测信度UCC（95％CI）为0．786（0．566～0．894）]。结论压力生物反馈仪测试腰部腹内压具有良好的重测信度，故压力生物反馈可用于对腰腹部腹内压的评价。

Objective To assess the test-retest reliability of pressure biofeedback in measuring intra abdominal pressure in the lumbar region for normal subjects. Methods We choosed 33 subjects （20 to 27 years old） and asked them to do four movements （movement A： prone position ;movement B： supine position with flexion hip and knee joint;movement C.. supine position with single flexion hip and knee joint ; movement D： prone position with flexion shoulder joint ; ） by using pressure biofeedback twice totally, and the last measurement should be done after 24 h. The indicator of test-retest reliability of joint position was intraclass correlation coefficient （ICC）. Results The test-retest reliability of intra abdominal pressure was modest in the four movements in the lumbar region,and the values of ICC were from 0. 786-0. 848. The test-retest reliability of intra abdominal pressure was good in Movement A [ICC（95%CI）=0. 817（0. 630-0. 910）] ,Movement B [ICC（95%CI）=0. 848 （0. 692--0. 925）1, Movement D [ICC（95%CI） ：0. 841（0. 678--0. 921）]. And the test-retest reliability of intra abdominal pressure was good in Movement C[ICC （95%CI） = 0. 786（0. 566-0. 894）]. Conclusion The test-retest reliability of intra abdominal pressure was modest and good in the lumbar region,and pressure biofeedback could be useful to assess intra abdominal pressure.