A randomized controlled trial of the effect of participatory ergonomic low back pain training on workplace improvement

Effectiveness of ergonomic interventions on work activity limitations in adults with rheumatoid arthritis: A systematic review

BACKGROUND: Rheumatoid arthritis (RA) is one of the leading causes of work disability in the United States. Ergonomic interventions offer an individualized treatment approach, and when used in conjunction with pharmacological treatment interventions, may improve work outcomes and improve the overall quality of life for individuals with RA. OBJECTIVE: To identify the current body of evidence regarding the effectiveness of ergonomic interventions in reducing work activity limitations in adults with RA. METHODS: A systematic review was conducted to identify articles of ergonomic interventions targeting working adults with RA. The CONsolidated Standards of Reporting Trials (CONSORT) checklist and Non-Pharmacological Treatment (NPT) Extension evaluated the reporting quality of each randomized controlled trial (RCT), and the Grading of Recommendation Assessment, Development, and Evaluation (GRADE) evaluated the quality of the evidence. RESULTS: Six studies were identified and reviewed for the quality of their reporting on evidence related to work activity limitations. Sixty-six percent of the items on the CONSORT checklist were fully reported by all studies and analysis through the GRADE framework demonstrated moderate confidence that the reported effects of ergonomic interventions on work activity limitations in the studies are accurate. This review revealed varied results for the effectiveness of ergonomic interventions on work activity limitations and at-work productivity. CONCLUSION: The results of this review indicate a need for further investigation. Future studies should focus on reviewing specific ergonomic interventions to determine the dosage needed to see results in reducing work activity limitations for working adults with RA.

Effectiveness of participatory ergonomic interventions on musculoskeletal disorders and work ability among young dental professionals: A cluster-randomized controlled trail

Objectives

This study is to evaluate the efficacy of participatory ergonomic (PE) intervention on musculoskeletal disorders (MSDs) and work ability among young dental professionals in China.

Methods

A cluster randomized controlled trail was conducted during 2015–2016. Twenty‐nine departments from five hospitals in the South of China were randomized into intervention (14 departments) and control (15 departments), with individuals of 125 and 138 dental professionals, respectively. Main participatory ergonomic interventions involved work posture, repetitive motions, tool usage, work break relaxation and work time re‐arrangement with total 235 ergonomic changes in the trail. Individual ergonomic risk exposure was assessed by investigator's observation using quick exposure check (QEC). Work ability index (WAI) and MSDs were collected by questionnaires at baseline, and every 3 months during the 1‐year follow‐up.

Results

Follow‐up rate was 91% and 96% for the intervention and control group, respectively. Significant reductions in ergonomic risk exposure and MSD prevalence on six anatomic sites were found in the PE group during the different follow‐up stages. WAI scores improved by 1.1 (95% CI 0.43, 1.89) after the 9‐month intervention. Compared to the control, the PE participants significantly reduced MSDs on neck (OR = 2.93, 95% CI: 1.25, 4.03) and wrists/hands (OR = 2.33, 95% CI: 1.08, 4.21), marginally increased WAI scores by 0.53 (95% CI: −0.02, 1.56) due to the interventions.

Conclusion

PE intervention is effective in reducing ergonomic risk exposure and MSDs on neck and wrists/hands among young dental professionals. PE ought to be offered in the early dental career for preventing MSDs.

The Effects of Workplace Interventions on Low Back Pain in Workers: A Systematic Review and Meta-Analysis

This systematic review and meta-analysis aimed to analyze the effects of workplace interventions (WI) on clinical outcomes related to low back pain (LBP) in a worker population, and to assess socio-economic parameters as participants on sick leave, days of sick leave, and return to work following WI. A systematic literature search was performed to select randomized clinical trials that investigated the effectiveness of WI on return to work, sick leave, and working capacity of workers affected by nonspecific LBP. Fourteen articles were included in the review and meta-analysis. The meta-analysis showed improvements in pain (p = 0.004), disability (p = 0.0008), fear-avoidance for psychical activity (p = 0.004), and quality of life (p = 0.001 for physical scale and p = 0.03 for mental scale) for patients who underwent WI compared to controls. Moreover, the pain reduction following WI was statistically significant in the healthcare workers’ group (p = 0.005), but not in the other workers’ group. The participants on sick leave and the number of days of sick leave decreased in the WI group without statistical significance (p = 0.85 and p = 0.10, respectively). Finally, LBP recurrence was significantly reduced in the WI group (p = 0.006). WI led to a significant improvement of clinical outcomes in a workers’ population affected by LBP.

Clinical Guidance to Optimize Work Participation After Injury or Illness: The Role of Physical Therapists

Work rehabilitation refers to the process of assisting workers to remain at work or return to work (RTW) in a safe and productive manner, while limiting the negative impact of restricted work, unemployment, and work disability. The primary purpose of this clinical practice guideline (CPG) is to systematically review available scientific evidence and provide a set of evidence-based recommendations for effective physical therapy evaluation, treatment, and management of individuals experiencing limitations in the ability to participate in work following injury or illness. J Orthop Sports Phys Ther 2021;51(8):CPG1-CPG102. doi:10.2519/jospt.2021.0303.

Lifestyle Medicine for Chronic Lower Back Pain: An Evidence-Based Approach

Lower back pain is a leading cause of work absence and activity limitations globally, with a 60% to 85% lifetime chance of occurrence. This article highlights the role that lifestyle medicine plays in managing lower back pain as a cost-effective intervention strategy. It is suggested that lifestyle medicine strategies, such as incorporating whole foods and a plant-based diet, sustainable physical activity and mind-body exercises, restorative sleep, stress resiliency, awareness and mitigation of substance abuse and addiction, and establishing meaningful social networks and self-care strategies, be a part of managing chronic lower back pain.

Longitudinal effects of utilising photography on the accuracy of ergonomic self-assessments amongst dental hygiene students

PURPOSE

The purpose of this study was to determine the longitudinal effects of feedback involving photography and self-assessment on the accuracy of ergonomic self-assessments and ergonomic scores amongst dental hygiene students.

MATERIALS AND METHODS

The study involved an experimental design. Data collection took place over 4 months, divided into weeks 1-4 and after 3 months. At weeks 1 through 4 and 3 months, all participants completed ergonomic self-evaluations, using a Modified-Dental Operator Posture Assessment Instrument. At week 1, week 4 and 3 months, all participants were photographed, and in weeks 2 and 3, only participants in the training group were photographed and used those photographs to complete ergonomic self-assessments. All participants' photographs were evaluated by three faculty raters.

RESULTS

A mixed-design ANOVA of Kappa coefficient values between student and rater scores measured the effects of the feedback with photography on the accuracy of student self-assessments. A main effect for group was not found to be significant (F(1,30) = 2.90, P = .101). A mixed-design ANOVA measured the effects of the feedback with photography on the ergonomic scores. No significant main effects were found (F(1,120) = 1.55, P = .216).

CONCLUSION

Although self-assessment utilising photographs resulted in initial improvements in the accuracy of ergonomic self-assessments and ergonomic scores after 4 weeks, both ergonomic accuracy and scores significantly decreased after 3 months. Improvement in ergonomic accuracy and scores may be sustained by the continual facilitated use of photographs and self-assessment by dental and dental hygiene educators.

Evaluation of the effects of two alternative participatory ergonomics intervention strategies for construction companies

To improve the use of ergonomics tools by construction workers, the effect of two guidance strategies - a face-to-face strategy (F2F) and an e-guidance strategy (EG) - of a participatory ergonomics intervention was studied. Twelve construction companies were randomly assigned to the F2F group or the EG group. The primary outcome measure, the percentage of workers using ergonomics tools, and secondary outcome measures - work ability, physical functioning and limitations due to physical problems - were assessed using surveys at baseline and after 6 months. Additionally, a cost-benefit analysis was performed on company level. No differences in primary and secondary outcomes were found with the exception of the use of ergonomics tools to adjust working height (F2F +1%; EG +10%; p = .001). Newly-implemented tools were used by 23% (F2F) and 42% (EG) of the workers (p = .271). Costs were mainly determined by guidance costs (F2F group) or purchase costs (EG group). Practitioner Summary: Participatory strategies aim to stimulate behavioural change of stakeholders to increase the use of ergonomics tools. Two guidance strategies - face-to-face or e-mail interventions - among construction companies were studied. Both guidance strategies led to an increase in the use of new ergonomics tools.