Abstract
Background and Objective: Ultrasound measurement of Diaphragmatic Mobility (DM) has been shown to be a reliable measurement tool among healthy subjects. However, the measures of reliability are needed prior to clinical use of this device among Non-Specific Low Back Pain (NS-LBP). Therefore, the aim of the study was to investigate the relative and absolute reliability of DM using Real Time Ultrasound (RTUS) among subjects with NS-LBP.Materials and Methods: Nine subjects with NS-LBP (23.33 ± 1.58) years old were recruited. A qualified examiner performed measurement of DM using RTUS by placing transducer on the right subcostal region in semi-fowlers position with 30 degree elevation of the trunk. The test-retest measures were re-assessed with 24 hour interval between sessions.Results: There was no systematic errors between the test-retest measures (p>0.05). Intra rater reliability showed ICC value of 0.92, which indicates an excellent reliability. The SEMs of the measurement was 2.56 mm and the MDC of 7.09mm.Conclusion:The RTUS for assessing DM provides an excellent intra-rater reliability which may be used as an assessment technique for clinical evaluation of DM in adults with NS-LBP. The SEMs and MDC reported may also allow for accurate interpretation of DM assessments in NS-LBP.Bangladesh Journal of Medical Science Vol.16(3) 2017 p.443-447
Highlights
Non-specific low back pain (NS-LBP) is one of the major health problems with a prevalence of about 23% and this causes 11-12% of the population being disabled by LBP1
In order to evaluate the diaphragmatic mobility (DM), inclusions of reliable and quantifiable measurement tool is necessary to confirm the involvement of respiratory compromise among Non-Specific Low Back Pain (NS-LBP)
The findings showed Diaphragmatic Mobility (DM) assessment using Real Time Ultrasound (RTUS) among NS-LBP can be performed in a clinical setting with small measurement variation of one percent
Summary
Non-specific low back pain (NS-LBP) is one of the major health problems with a prevalence of about 23% and this causes 11-12% of the population being disabled by LBP1. An earlier study which examined the function of diaphragm during postural limb activities in patients with LBP and healthy controls reported that those subjects who encountered chronic LBP appear to have abnormal position and steeper slope of diaphragm[2]. In this context, it has been postulated that alteration in mobility of diaphragm may predispose to NS-LBP as because of postural instability. The aim of the study was to investigate the relative and absolute reliability of DM using Real Time Ultrasound (RTUS) among subjects with NS-LBP. The SEMs and MDC reported may allow for accurate interpretation of DM assessments in NS-LBP
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