scholarly journals Test–Retest Reliability of an iPhone® Inclinometer Application to Assess the Lumbar Joint Repositioning Error in Non-Specific Chronic Low Back Pain

2021 ◽  
Vol 18 (5) ◽  
pp. 2489
Author(s):  
Alejandro Caña-Pino ◽  
Luís Espejo-Antúnez ◽  
José Carmelo Adsuar ◽  
María Dolores Apolo-Arenas
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Total Sample ◽  
Joint Position Sense ◽  
Sitting Position ◽  
Low Back ◽  
Retest Reliability ◽  
Lumbar Flexion ◽  
Test Retest Reliability

Background: The joint position sense (JPS) has been used as an indirect marker of proprioception in subjects with non-specific chronic low back pain (NSCLBP), showing impairment in previous studies. It seems necessary to devise reliable tests to measure proprioceptive deficits in subjects with NSLBP. The objective of this study was to analyse the test–retest reliability and smallest real difference (SRD) of lumbar proprioception through the JPS indicator in a sample of patients with NSCLBP. Methods: Fifty participants with NSCLBP performed three repetitions of 30° lumbar flexion while standing and sitting using the iPhone® inclinometer application to measure the lumbar joint repositioning error. For the reliability analysis, we performed an intra-session test–retest. Results: The total sample ICC values were excellent for standing (0.96) and sitting (0.93) 30° lumbar flexion. In addition, our results showed that, for the total sample, an SRD < 12% can be considered as a true change in proprioception concerning this procedure. On the other hand, men have better reliability than women in both standing and sitting positions. Additionally, the sitting position has better reliability than the standing position. The standard error of measurement (SEM) percentage was 4.2 for standing and 3.8 for sitting. The SRD percentage was 11.6 for standing and 10.4 for sitting. Conclusions: The iPhone® inclinometer seems reliable for assessing proprioceptive ability through the lumbar joint repositioning error in subjects with NSCLBP in both standing (ICC = 0.96) and sitting (ICC = 0.93) positions. This technological device showed a lower measurement error for sitting position (SRD < 12%).

Lumbar Flexion During Driving: Establishing a Methodology for Characterising Real-Time Posture Data Collected by Innovative Technology

2021 ◽  
pp. 001872082110583
Author(s):  
Sarah Tinitali ◽  
Terry Haines ◽  
Kelly-Ann Bowles
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Standard Deviation ◽  
Real Time ◽  
Low Back ◽  
Retest Reliability ◽  
Lumbar Flexion ◽  
Measurement Tools ◽  
Driving Posture ◽  
Test Retest Reliability

Objective To determine a methodology for the analysis of real-time driving posture data in the low back pain population. Background The strength of the relationship between driving posture and low back pain is yet to be defined due to the lack of studies in the field using validated and repeatable posture measurement tools. Reliable and validated real-time measurement tools are now available, yet reliable methods of analysis of these data are yet to be established. Method Ten occupational drivers completed a typical work shift while wearing an inertial motion sensor system (dorsaVi ViMove). Real-time lumbar flexion data were extracted, with test–retest reliability of mean lumbar flexion, peak lumbar flexion, and standard deviation of lumbar flexion analysed at different times across a work shift, and in different sections within a drive. Results Mean lumbar flexion was highly repeatable over numerous drives in one day, with greater test–retest reliability if the first five minutes of driving data were excluded. Peak lumbar flexion had acceptable test-retest reliability over numerous drives in one day, while standard deviation of lumbar flexion was not a repeatable measure. Conclusion Mean lumbar flexion was a reliable outcome for characterising driving posture in drivers with low back pain. Peak lumbar flexion may be used if appropriate to the individual study. Standard deviation of lumbar flexion is not a reliable posture outcome. Application This paper provides a reliable methodology for analysis of real-time driving posture data in occupational drivers with low back pain.

scholarly journals Age-related test-retest reliability of isometric trunk torque measurements in patiens with chronic low back pain

2016 ◽  
Vol 48 (10) ◽  
pp. 893-902 ◽  
Author(s):  
T Kienbacher ◽  
J Kollmitzer ◽  
P Anders ◽  
R Habenicht ◽  
C Starek ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Low Back ◽  
Retest Reliability ◽  
Age Related ◽  
Torque Measurements ◽  
Test Retest Reliability ◽  
Related Test

scholarly journals Reliability of Sonography Measures of the Lumbar Multifidus and Transversus Abdominis during Static and Dynamic Activities in Subjects with Non-Specific Chronic Low Back Pain

Diagnostics ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 632
Author(s):  
Eleuterio A. Sánchez Romero ◽  
José Luis Alonso Pérez ◽  
Alberto Carlos Muñoz Fernández ◽  
Andrea Battaglino ◽  
Matteo Castaldo ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Transversus Abdominis ◽  
Low Back ◽  
Lumbar Multifidus ◽  
Retest Reliability ◽  
Contraction Ratio ◽  
Test Retest Reliability ◽  
Thickness Measurements

Purpose: The purpose of this study was to investigate the test-retest reliability of ultrasound (US) thickness measurements and the muscle contraction ratio (CR) of lumbar multifidus (LM) and transversus abdominis (TA) muscles in participants with and without nonspecific chronic low back pain (NCLBP). Methods: A total of 62 participants (37 with NCLBP, 25 without NCLBP) with participated in the study. The within-day and between-day reliability of US thickness measurements and CR in a lying (supine for TA and prone for LM) and sitting positions for both muscles (sitting on a gym ball with both feet on the ground or lifting one foot off the floor) were assessed. Reliability analysis was performed with intraclass correlations (ICCs) for these two static and dynamic positions. Results: Test-retest reliability was calculated to be good to high for the static position (ICC = 0.72–0.95) and the dynamic position (ICC = 0.74–0.94) sonographic measurements in both group of TA measurement. Test-retest reliability of LM measurements was good to high for the static position (ICC = 0.82–0.95) and the dynamic position (ICC = 0.85–0.97) sonographic measurements in both groups. Conclusions: US imaging is a highly reliable method for the assessment of TA and LM thickness muscles in the dynamic position in participants with and without NCLBP. The CR measures may be adequately reliable in assessing the function of the TA and LM muscles in participants with NCLBP and healthy ones.

scholarly journals The association between insomnia, c-reactive protein, and chronic low back pain: cross-sectional analysis of the HUNT study, Norway

2019 ◽  
Vol 19 (4) ◽  
pp. 765-777 ◽  
Author(s):  
Kevin Kwan Ngai Ho ◽  
Milena Simic ◽  
Milada Cvancarova Småstuen ◽  
Marina de Barros Pinheiro ◽  
Paulo Herrique Ferreira ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Total Sample ◽  
Low Back ◽  
C Reactive Protein ◽  
Cross Sectional ◽  
Reactive Protein ◽  
Sectional Analysis ◽  
Very High

Abstract Background and aims Chronic low back pain (chronic LBP) is the number one cause for years lived with disability among 301 diseases and injuries analyzed by The Global Burden of Disease study 2013. Insomnia is highly prevalent among people with chronic LBP. To explain the sleep-pain relationship, theoretical models propose that insomnia symptoms may be associated with increased basal inflammation, operationalized as c-reactive protein (CRP) and lead to further pain and disrupted sleep. We aimed to determine the associations between insomnia, chronic LBP, and inflammation (operationalized as CRP), whilst controlling for age, body mass index, smoking, physical activity, depression, anxiety and osteoarthritis. Methods A cross-sectional analysis of the third Nord-Trøndelag Health Study (2006–2008), a rural population survey of 50,666 participants in Norway aged 20–96 years. Insomnia (dichotomous) was defined according to the Diagnostic and Statistical Manual of Mental Disorders 5th Edition, and chronic LBP (dichotomous) as low back pain or stiffness lasting at least 3 months. Data for CRP were obtained from non-fasting serum samples and assessed via latex immunoassay methodology. We excluded participants with the following self-reported chronic somatic diseases: chronic heart failure, chronic obstructive pulmonary disease, rheumatoid arthritis, fibromyalgia or ankylosing spondylosis. Possible associations between presence of insomnia and presence of chronic LBP (dependent), and the level of CRP and presence of chronic LBP (dependent), were assessed using logistic regression models. The possible association between insomnia and CRP (dependent) was assessed using linear regression. Multivariable analyses were conducted adjusting for confounders stated in our aim that achieved p ≤ 0.2 in univariate regressions. We performed stratified analyses for participants with “Normal” (<3 mg/L) “Elevated” (3–10 mg/L) and “Very High” (>10 mg/L) levels of CRP. Results In our total included sample (n = 30,669, median age 52.6, 54% female), 6.1% had insomnia (n = 1,871), 21.4% had chronic LBP (n = 6,559), and 2.4% had both (n = 719). Twenty four thousand two hundred eighty-eight (79%) participants had “Normal” CRP, 5,275 (17%) had “Elevated” CRP, and 1,136 (4%) had “Very High” CRP. For participants with “Normal” levels of CRP, insomnia was associated with higher levels of CRP (adjusted B = 0.04, 95%CI [0.00–0.08], p = 0.046), but not for people with “Elevated” or “Very High” levels of CRP. There was an association between CRP and presence of chronic LBP in the total sample (adjusted OR = 1.01, [1.00–1.01], p = 0.013) and for people with “Normal” CRP (1.05, [1.00–1.10, p = 0.034]. Insomnia was associated with the presence of chronic LBP in the total sample (adjusted OR = 1.99, 95%CI [1.79–2.21], <0.001) and for people with “Normal”, “Elevated” and “Very High”. Conclusions Individuals with insomnia have twice the odds of reporting chronic LBP. Insomnia, CRP and chronic LBP appear to be linked but the role of CRP appears to be limited. Longitudinal studies may help further explore the causal inference between insomnia chronic LBP, and inflammation. Implications Given the strong relationship between insomnia and chronic LBP, screening and management of comorbid insomnia and chronic LBP should be considered in clinical practice. Further longitudinal studies are required to explore whether the presence of insomnia and increased inflammation affects the development of chronic LBP.

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