scholarly journals Validation of Lumbar Compressive Force Simulation in Forward Flexion Condition

2021 ◽  
Vol 11 (2) ◽  
pp. 726
Author(s):  
Xiaohan Xiang ◽  
Yoji Yamada ◽  
Yasuhiro Akiyama ◽  
Ziliang Tao ◽  
Naoki Kudo
Keyword(s):  
Low Back Pain ◽  
Intraclass Correlation ◽  
Compressive Force ◽  
The Other ◽  
Low Back ◽  
Safety Standard ◽  
Forward Flexion ◽  
Good Consistency ◽  
Real Person ◽  
Coefficient Method

Safety standard requirements must be implemented for lumbar support robots, which are mainly used for preventing low back pain (LBP) in caregivers. Usually, simulations are used to mimic actions that are not allowed for a real person. However, a comprehensive validation of a simulator in dynamic conditions has not been conducted. In this study, an ergonomic simulator is validated through forward flexion invasive experiments. The correspondence between the simulated and experimental compressive force (CF), as well as the CF obtained using two existing models about the unified angle, is investigated. The results show that the CF error between the measurements and the simulator at a flexion angle of 30∘ is 11.8% and is lower than those obtained for the other two models (16.8% and 20.6%). Linear regression shows that the invasive data and estimated CF are close (slope = 1) in Merryweather’s model and CF simulator but not for Potvin’s model. We evaluate the precision of the simulator by using intraclass correlation coefficient method. Merryweather’s model is moderately consistent with invasive measurements, with R–0.685 and 0.627 at 0 and 30∘, while the CF simulator shows good consistency with Merryweather’s model with R–0.879 and 0836 at 0 and 30∘.

Prevalence of Work Related Low Back Pain in Healthcare Professionals

2020 ◽  
pp. 26-30
Author(s):  
OJS Admin
Keyword(s):  
Health Care ◽  
Low Back Pain ◽  
Back Pain ◽  
Health Care Professionals ◽  
Healthcare Professionals ◽  
Preventive Measures ◽  
The Other ◽  
Low Back ◽  
Work Related ◽  
Causative Factors

Health care professionals experience more low back pain than most of the other groups. Occupational and social stresses, no use of preventive measures, poor body mechanics, excessive movements and not seeking medical care are considered as the causative factors for back pain.

scholarly journals The Online Patient Satisfaction Index for Patients With Low Back Pain: Development, Reliability, and Validation Study (Preprint)

2020 ◽  
Author(s):  
Tamana Afzali ◽  
Henrik Hein Lauridsen ◽  
Janus Laust Thomsen ◽  
Jan Hartvigsen ◽  
Martin Bach Jensen ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Patient Satisfaction ◽  
Back Pain ◽  
Construct Validity ◽  
Intraclass Correlation ◽  
Face Validity ◽  
The Internet ◽  
Low Back ◽  
Web Based ◽  
Satisfaction Index

BACKGROUND Low back pain is highly prevalent, and most often, a specific causative factor cannot be identified. Therefore, for most patients, their low back pain is labeled as nonspecific. Patient education and information are recommended for all these patients. The internet is an accessible source of medical information on low back pain. Approximately 50% of patients with low back pain search the internet for health and medical advice. Patient satisfaction with education and information is important in relation to patients’ levels of inclination to use web-based information and their trust in the information they find. Although patients who are satisfied with the information they retrieve use the internet as a supplementary source of information, dissatisfied patients tend to avoid using the internet. Consumers’ loyalty to a product is often applied to evaluate their satisfaction. Consumers have been shown to be good ambassadors for a service when they are willing to recommend the service to a friend or colleague. When consumers are willing to recommend a service to a friend or colleague, they are also likely to be future users of the service. To the best of our knowledge, no multi-item instrument exists to specifically evaluate satisfaction with information delivered on the web for people with low back pain. OBJECTIVE This study aims to report on the development, reliability testing, and construct validity testing of the Online Patient Satisfaction Index to measure patients’ satisfaction with web-based information for low back pain. METHODS This is a cross-sectional validation study of the Online Patient Satisfaction Index. The index was developed with experts and assessed for face validity. It was subsequently administered to 150 adults with nonspecific low back pain. Of these, 46% (70/150) were randomly assigned to participate in a reliability test using an intraclass correlation coefficient of agreement. Construct validity was evaluated by hypothesis testing based on a web app (MyBack) and Wikipedia on low back pain. RESULTS The index includes 8 items. The median score (range 0-24) based on the MyBack website was 20 (IQR 18-22), and the median score for Wikipedia was 12 (IQR 8-15). The entire score range was used. Overall, 53 participants completed a retest, of which 39 (74%) were stable in their satisfaction with the home page and were included in the analysis for reliability. Intraclass correlation coefficient of agreement was estimated to be 0.82 (95% CI 0.68-0.90). Two hypothesized correlations for construct validity were confirmed through an analysis using complete data. CONCLUSIONS The index had good face validity, excellent reliability, and good construct validity and can be used to measure satisfaction with the provision of web-based information regarding nonspecific low back pain among people willing to access the internet to obtain health information. CLINICALTRIAL ClinicalTrials.gov NCT03449004; https://clinicaltrials.gov/ct2/show/NCT03449004

Enggrong Modification Reduces Low Back Pain Risk on Sand Workers

2017 ◽  
Vol 3 (6) ◽  
pp. 32
Author(s):  
Denny Nurkertamanda ◽  
I Nyoman Adiputra ◽  
Ketut Tirtayasa ◽  
I Putu Gede Adiatmika
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Material Handling ◽  
Compressive Force ◽  
Low Back ◽  
Lateral Shear ◽  
Work Posture ◽  
Period 2 ◽  
Anterior Posterior

Material handling manual work is a job at risk to worker health and safety, errors in the manual procedure of manual material handling will result in health impacts in the short and long term. One of the manual jobs of material handling is the job of lowering the sand from the top of the truck. In working the workers use a tool in the form of enggrong which is a shovel with a short handle. Due to the use of employee enggrong work with a stooped posture. This work posture raises the potential for low back pain on workers. Low back pain is a pain and/or loss of workability as a long-term risk of postural errors in activity. Low back pain occurs on low back disc L4 / L5 or L5 / S1. This study used treatment by the same subject design with a sample of 9 participants. The purpose of the study was to find out the different forces in Low back disc L4 / L5 when the worker worked using standard enggrong (Period 1 / P1) compared to using modification enggorong (Period 2 / P2). The forces in the L4 / L5 Low back disc include 1) compression, 2) anterior/posterior shear, and 3) lateral shear. Work posture data was taken using Microsoft KinectTM 3D camera and analyzed by using Siemen Jack 3D Static Strength Prediction Program (3DSSPP) method to get the force on the low back disc. The results of the analysis of the 6 work postures P1 and P2, showed a significant decrease (p <0.05) in the average compression force in the low back disc L4 / L5 on the work posture using modified enggrong. Enggrong modification lowers compression in low back disc L4 / L5 by 38.73% (P1 2143.8 ± 411.3 N; P2 1320.2 ± 418.4 N), anterior / posterior shear 46.17% (P1 542, 6 ± 103.9 N, P2 292.1 ± 81.2 N), and lateral shear 29.69% (P1 31.2 ± 22.08 N; P2 16.6 ± 14.28 N) compared with the use of enggrong standard. The threshold value for compression 3400 N and anterior / posterior shear is 700 N, then the compression and anterior / posterior shear values in Period 2 are well below the threshold. Decrease in the press force in low back disc L4 / L5 is as a result of changes in work posture workers who work using modification enggrong. It can be concluded that the use of modification enggrong can decrease the compressive force in the low back disc L4 / L5 so as to reduce the low back pain occurs to the workers.

Disability Insurance Adjudication Criteria and the Incidence of Hard-to-Diagnose Medical Conditions

2006 ◽  
Vol 5 (1) ◽  
Author(s):  
Michele Campolieti
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Disability Insurance ◽  
Pension Plan ◽  
Significant Decline ◽  
The Other ◽  
Low Back ◽  
Medical Conditions ◽  
Medical Problems ◽  
Other Hand

AbstractI examine the effects of a change in Canada Pension Plan disability program adjudication criteria on individual reports of medical problems. The estimates from this paper suggest that more stringent screening requirements are associated with a statistically significant decline in the reports of hard-to-diagnose conditions, such as low back pain. On the other hand, my estimates also indicate that changes in adjudication requirements do not have a statistically significant effect on the reports of easier to diagnose conditions.

Preliminary Validation of a Two-Point Estimation Task for the Measurement of Sensory Dissociation in Patients with Chronic Low Back Pain

Pain Medicine ◽  
2018 ◽  
Vol 20 (12) ◽  
pp. 2472-2478 ◽  
Author(s):  
Wacław M Adamczyk ◽  
Anna Sługocka ◽  
Krzysztof Mehlich ◽  
Edward Saulicz ◽  
Kerstin Luedtke
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Chronic Low Back Pain ◽  
Intraclass Correlation ◽  
Body Part ◽  
Point Estimation ◽  
Repeated Measurements ◽  
Low Back ◽  
Estimation Task ◽  
Tactile Stimuli

AbstractObjectivesSensory dissociation (SEDI), the discrepancy between perception and actual size or shape of a painful body part, is a frequently observed finding in patients with chronic low back pain. However, the current methods of evaluating SEDI have several limitations, such as a qualitative nature and weak evidence supporting their reliability. In the current study, the reliability of two versions (manual and verbal) of a novel test, a two-point estimation task (TPE), was investigated.MethodsTo perform the manual version of the task, patients estimated the distance between two tactile stimuli delivered to their back using callipers, whereas in the verbal version they verbally reported the estimated distance.ResultsThe manual version of TPE showed greater interexaminer reliability than the verbal version, and the mean of the two repeated measurements was sufficient for reaching excellent reliability for the pain-free (intraclass correlation coefficient [ICC] = 0.91, 95% confidence interval [CI] = 0.77–0.97) and painful (ICC = 0.86, 95% CI = 0.65–0.94) sides. Intra-examiner reliability was moderate to excellent (ICC = 0.66–0.96) for the manual version performed at the pain-free and painful sides. Distribution, duration, and intensity of pain significantly predicted SEDI and accounted for 42% of the total variance (corrected R2 = 0.42, P &lt; 0.01).ConclusionsTPE showed higher reliability coefficients compared with tools previously suggested in the literature and can therefore be used clinically and experimentally by one or more examiners. Further research is required to investigate the validity of this new test.

scholarly journals Sagittal Integral Morphotype of Competitive Amateur Athletes and Its Potential Relation with Recurrent Low Back Pain

2021 ◽  
Vol 18 (16) ◽  
pp. 8262
Author(s):  
Antonio Cejudo ◽  
Josep María Centenera-Centenera ◽  
Fernando Santonja-Medina
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Sports Medicine ◽  
Female Athletes ◽  
Low Back ◽  
Chi Square ◽  
Amateur Athletes ◽  
Athletic Population ◽  
Forward Flexion ◽  
Recurrent Low Back Pain

Athletes have higher thoracic and lumbar curvature in standing than the reference values of the non-athletic population. The sagittal integral morphotype method (SIM) assessment has not previously been applied to competitive amateur athletes (CAA). The propose of the present study was to determine the SIM of CAA treated at a sports-medicine center and to identify spinal misalignments associated with recurrent low back pain (LBP). An observational analysis was developed to describe the SIM in 94 CAA. The thoracic and lumbar curvatures of the CAA were measured in standing, sitting, and trunk forward flexion. Association analysis (Pearson’s chi-square and Cramér’s V tests) was then performed to identify the SIM misalignments associated with LBP. Effect size was analyzed based on Hedges’ g. The most common thoracic SIMs in CAA were total hyperkyphosis (male = 59.02%; female = 42.42%) and static hyperkyphosis (male = 11.48%; female = 6.06%). Hyperlordotic attitude (female = 30.30%; male = 4.92%), static-functional hyperkyphosis (male = 16.39%; female = 3.03%), and structured hyperlordosis (female = 21.21%; male = 1.64%) were the most common lumbar SIMs. Hyperlordotic attitude, static functional lumbar hyperkyphosis, and structured hyperlordosis were associated with LBP in male and female athletes.

scholarly journals Does changed referral options affect the use of MRI for patients with low back pain? Evidence from a natural experiment using nationwide data

BMJ Open ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. e025921
Author(s):  
Morten Sall Jensen ◽  
Kim Rose Olsen ◽  
Lars Morsø ◽  
Jens Søndergaard ◽  
Berit Schiøttz-Christensen
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Natural Experiment ◽  
The Other ◽  
Secondary Outcome ◽  
Low Back ◽  
Referral Patterns ◽  
Lumbar Mri ◽  
Mri Scans ◽  
Direct Referral

ObjectivesThis study reports lumbar MRI referral patterns in the Region of Southern Denmark (RSD) and investigates the hypothesis that we will see an increase in imaging rates (MRI rates) following new referral options to lumbar MRI in the RSD in comparison with the other regions in Denmark from 2010 to 2013.DesignA difference-in-difference (DD) analysis, using general practitioners (GPs) in other regions as control, was used to test if the new referral options had an effect on the MRI rates.SettingIn 2010, RSD introduced organisational changes affecting the referral options for lumbar MRI. First, the possibility for direct referral to lumbar MRI was introduced GPs, and second, the region gathered all local spine departments into one specialist hospital called the Spine Centre.ParticipantsWe retrieved all lumbar MRIs performed on patients aged 18+ performed on Danish hospitals from 2008 to 2013 using the registries from Statistics Denmark. We use sociodemographic information from all Danish citizens aged 18+ aggregated to GP level. Primary and secondary outcome measures: lumbar MRI scans per 1000 capita enlisted with a GP (MRI rates) were calculated based on GPs patient list. Four referral types were made to describe changes in referral patterns.ResultsIn total 183 389 patients received 240 760 lumbar MRIs in the period. The use of the direct referral option by GPs in the RSD increased by 115% in the period from 2010 to 2013 and accounted for 34% of all referrals (n=6545) in 2013. MRI rates were significantly higher in RSD following the organisational changes (DD 1.389(0.925–1.852) lumbar MRI per 1.000 enlisted with a GP).ConclusionsIntroduction of organisational changes in RSD as direct referral to lumbar MRI from GPs and chiropractors as well as establishing a Spine Centre increase the lumbar MRI rate in comparison with other regions in Denmark.

scholarly journals Effect of Parameters on Lumbar Compressive Force during Patient Transfer

2021 ◽  
Vol 11 (24) ◽  
pp. 11622
Author(s):  
Xiaohan Xiang ◽  
Yoji Yamada ◽  
Yasuhiro Akiyama ◽  
Hibiki Nakamura ◽  
Naoki Kudo
Keyword(s):  
Regression Analysis ◽  
Low Back Pain ◽  
Back Pain ◽  
Quantitative Assessment ◽  
Compressive Force ◽  
Assessment Method ◽  
Patient Transfer ◽  
Lumbar Region ◽  
Low Back ◽  
Transfer Tasks

Patient transfer (PT) tasks are a significant cause of low back pain (LBP) in caregivers. Adopting proper motion strategies is an effective and inexpensive approach to reduce the risk of LBP. However, since the standardization of PT tasks is not specified in ISO 11228, there is an increasing need to develop a quantitative assessment method for the lumbar safety of caregivers. Therefore, we aim to determine the effect of representative factors, extracted from caregivers’ movements and of external force, on peak compressive force (CF) in patient transfer tasks using the lumbar compressive force as a criterion. The CF at the lumbar region is estimated using a biomechanical simulator, and regression analysis is performed between the estimated CF and representative factors. The results imply that peak CF occurs in the incipience of transfer and occurs after the occurrence of the peak trunk angle. The results also indicate that the peak CF can be reduced by preventing the representative factors from simultaneously reaching the maximum values. In this study, we provide a method of reducing peak CF by estimating the timing and magnitude of the peak to help caregivers assess the severity of LBP risk in actual PT, which is expected to contribute to the standardization of PT tasks.

scholarly journals The Online Patient Satisfaction Index for Patients With Low Back Pain: Development, Reliability, and Validation Study

10.2196/21462 ◽  
2021 ◽  
Vol 5 (11) ◽  
pp. e21462
Author(s):  
Tamana Afzali ◽  
Henrik Hein Lauridsen ◽  
Janus Laust Thomsen ◽  
Jan Hartvigsen ◽  
Martin Bach Jensen ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Patient Satisfaction ◽  
Back Pain ◽  
Construct Validity ◽  
Intraclass Correlation ◽  
Face Validity ◽  
The Internet ◽  
Low Back ◽  
Web Based ◽  
Satisfaction Index

Background Low back pain is highly prevalent, and most often, a specific causative factor cannot be identified. Therefore, for most patients, their low back pain is labeled as nonspecific. Patient education and information are recommended for all these patients. The internet is an accessible source of medical information on low back pain. Approximately 50% of patients with low back pain search the internet for health and medical advice. Patient satisfaction with education and information is important in relation to patients’ levels of inclination to use web-based information and their trust in the information they find. Although patients who are satisfied with the information they retrieve use the internet as a supplementary source of information, dissatisfied patients tend to avoid using the internet. Consumers’ loyalty to a product is often applied to evaluate their satisfaction. Consumers have been shown to be good ambassadors for a service when they are willing to recommend the service to a friend or colleague. When consumers are willing to recommend a service to a friend or colleague, they are also likely to be future users of the service. To the best of our knowledge, no multi-item instrument exists to specifically evaluate satisfaction with information delivered on the web for people with low back pain. Objective This study aims to report on the development, reliability testing, and construct validity testing of the Online Patient Satisfaction Index to measure patients’ satisfaction with web-based information for low back pain. Methods This is a cross-sectional validation study of the Online Patient Satisfaction Index. The index was developed with experts and assessed for face validity. It was subsequently administered to 150 adults with nonspecific low back pain. Of these, 46% (70/150) were randomly assigned to participate in a reliability test using an intraclass correlation coefficient of agreement. Construct validity was evaluated by hypothesis testing based on a web app (MyBack) and Wikipedia on low back pain. Results The index includes 8 items. The median score (range 0-24) based on the MyBack website was 20 (IQR 18-22), and the median score for Wikipedia was 12 (IQR 8-15). The entire score range was used. Overall, 53 participants completed a retest, of which 39 (74%) were stable in their satisfaction with the home page and were included in the analysis for reliability. Intraclass correlation coefficient of agreement was estimated to be 0.82 (95% CI 0.68-0.90). Two hypothesized correlations for construct validity were confirmed through an analysis using complete data. Conclusions The index had good face validity, excellent reliability, and good construct validity and can be used to measure satisfaction with the provision of web-based information regarding nonspecific low back pain among people willing to access the internet to obtain health information. Trial Registration ClinicalTrials.gov NCT03449004; https://clinicaltrials.gov/ct2/show/NCT03449004

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