Predictors of low back pain in nursing home workers after implementation of a safe resident handling programme

Occupational psychosocial exposures and chronic low-back pain: a systematic review and meta-analysis

OBJECTIVE

This study aimed to explore the association between occupational psychosocial exposures and chronic low-back pain (LBP) by conducting a systematic review and meta-analysis.

METHODS

The research protocol was registered in PROSPERO. A systematic literature search was performed in six databases, identifying articles complying with predefined inclusion criteria. In our PECOS, we defined outcome as chronic LBP ≥3 months, exposures as occupational psychosocial exposures, and restricted study design to case-control and cohort studies. Two authors independently excluded articles, extracted data, assessed risk of bias, and graded evidence levels. Meta-analyses were performed using random-effects models.

RESULTS

The 20 included articles encompassed six different occupational psychosocial exposures (job control, demand, strain, support, stress, and satisfaction), only 1 had low risk of bias. For all occupational psychosocial exposures, odds ratios ranged from 0.8 to 1.1. Sensitivity analyses based on risk of bias was conducted for two outcomes ie, job control and job demand, finding no differences between high and low-to-moderate risk of bias studies. Using GRADE, we found a very low level of evidence of the association for all occupational psychosocial exposures.

CONCLUSION

In this study, we found no association between occupational psychosocial exposures and chronic LBP. However, it is important to underline that the level of evidence was very low. High quality studies are highly warranted.

Educational Intervention for the Management of Nonspecific Lower Back Pain in Nonprofessional Caregivers (TRANSFE Program): A Quasi-Experimental Study

Nonspecific lower back pain is one of the main health issues experienced by nonprofessional caregivers of dependent individuals. The repetitive movements and efforts made by caregivers to assist dependent individuals are associated with the onset of this lower back pain. The main objective of this study was to assess the effectiveness of an educational intervention for the management of nonspecific lower back pain in nonprofessional caregivers of dependent individuals (TRANSFE program). The secondary objectives were to (i) evaluate the effectiveness of the TRANSFE program on other variables (caregiver burden, perceived social support, and health-related quality of life), (ii) obtain the sociodemographic profile of the sample, and (iii) determine the baseline of the study variables. A quasi-experimental study with post-intervention measurements at 3 months was conducted. Thirty-six nonprofessional caregivers of dependent individuals participated in this study. The presence of lower back pain (back pain index), low back pain (visual analogue scale), disability due to low back pain (Oswestry disability index), perceived social support (Duke-UNK scale), caregiver burden (Zarit burden scale), and health-related quality of life (EuroQol-5D) were assessed. The intervention significantly improved all the studied variables related to lower back pain (p < 0.001). The intervention was effective on other variables related to nonprofessional caregiving such as caregiver burden, perceived social support, and health-related quality of life, albeit with moderate results. An educational intervention for lower back pain experienced by caregivers of dependent individuals was effective in reducing lower back pain and addressing caregiver burden, perceived social support, and health-related quality of life. This study was registered retrospectively on the Open Science Framework platform on 20 June 2024, with the registration number 10.17605/OSF.IO/K7WTE.

Save Your Back: Comparison of the Compressive Force on the Lower Back Based on Differences in the Training Techniques

INTRODUCTION

Musculoskeletal injury prevention for nurses is aimed at removing the need to manually position patients. In the ED, this is not always possible or practical. The purpose of this study is to compare the calculated estimated compressive force on the lumbar spine between recommended lifting techniques and the SHAPE lifting method during the horizontal transfer of a patient.

METHODS

Twenty-one student nurses completed the horizontal transfer of a simulated patient while motion was collected using inertial measurement units. Motion data were analyzed to calculate an estimated compressive force on the lumbar spine while completing the movement based on current recommended lifting methods and while using the SHAPE lifting method.

RESULTS

A significant reduction in estimated peak and average compressive force at the lumbar spine was found during both the push and the pull portions (P < .001) of the horizontal transfer.

DISCUSSION

While the optimal way to limit musculoskeletal injury among nurses is to eliminate the need for manual handling of a patient, this is not always possible in the ED. It is critical that when emergency nurses must reposition a patient, they perform the movement in the most biomechanically sound method while using a friction reduction. These findings, coupled with the previous biomechanical risk factor reduction related to the SHAPE lifting intervention, gives promise to a safer lifting strategy for emergency nurses moving forward.

Validity and reliability of Japanese version of the MAPO index for assessing manual patient handling in nursing homes

OBJECTIVES

Low back pain (LBP) among caregivers in Japanese nursing homes has long been considered an occupational health issue. This study aimed to verify the reliability and validity of our developed Japanese version of the Movement and Assistance for Hospitalized Patients (J-MAPO) index, a risk assessment tool for LBP, in nursing homes.

METHODS

Two inspectors assessed 15 nursing homes using J-MAPO, and deduced 3 LBP risk levels as follows: low, moderate, and high risk. Caregivers in nursing homes responded to a self-administered questionnaire on LBP over the past 12 months. Data from 296 caregivers with no missing data were used. We further used logistic regression models to analyze the association between LBP as a dependent variable, and J-MAPO risk level as an independent variable. We used Cohen kappa coefficient to assess interrater reliability to further assess the agreement between the 2 inspectors.

RESULTS

The multivariate logistic regression analysis showed that the adjusted odds ratio and 95% CIs for LBP increased progressively with J-MAPO risk level (Low-risk: 1.00; Moderate-risk: 1.70 [0.74-3.91]; High-risk: 2.67 [1.28-5.56]). Furthermore, the J-MAPO risk levels assessed by the 2 inspectors were in perfect agreement (κ = 1) observed for interrater reliability using Cohen kappa coefficient.

CONCLUSIONS

There was high interrater reliability, and J-MAPO risk levels were associated with LBP. Therefore, our results suggest that the J-MAPO is a useful risk assessment tool for LBP in Japanese nursing homes.

Effects of Slide Sheet Use and Bed Position on Muscle Activities in the Low Back and Extremities: A Pilot Experimental Simulation Study

BACKGROUND

Low-friction slide sheets (SS) are designed to reduce compression loads on the body during manual handling tasks, such as boosting patients. Using SS has been shown to decrease muscle activity in the lower back and upper extremities. However, it is unclear if this effect varies with different bed positions. To investigate this, we studied the effects of SS use, bed height, and their combination on muscle activity during a simulated patient boost.

METHODS

Thirty-three Japanese undergraduate students (age 21.0 ± 1.1 years; 14 men, 19 women) participated. Participants were asked to boost a dummy figure on the bed three times each using four conditions. During the repositioning task, electromyography of eight muscles of the lower back and upper and lower extremities, hip and knee joint flexion angles, pelvic forward tilt angle, and position of the center of mass based on the posterior superior iliac spine were evaluated.

FINDINGS

Electrophysiological activities of muscles of lower back and upper extremities were significantly lower with SS than without it in both bed positions (30% and 40% of body height); the reduction in muscle activities with SS use was 20% to 40%. Lowering the bed did not affect the SS effect magnitude on reducing muscle activities, although postural changes, including hip and knee joint flexion, were observed.

CONCLUSIONS/APPLICATION TO PRACTICE

SS reduced muscle activities in the back, upper, and lower extremities when the bed was in the low position, and this effect persisted at a bed height of ≥30% of the participant's height.

Nurses' Perceptions About Smart Beds in Hospitals

The purpose of this study was to examine nurses' perceptions of the smart mattress equipped with Internet of things, which are incorporated into patients' beds. In addition, their concerns and suggestions about smart mattress were explored. A total of 349 nurses in a tertiary hospital participated in a cross-sectional survey. Data were collected using questionnaires. Descriptive statistical analysis was used for survey data, whereas content analysis was used for qualitative data from open-ended questions. The participants' intention to accept the smart mattresses was 12.5 (SD, 1.73) on average, indicating a high level of acceptance. The participants expected the smart mattresses to decrease their physical work burden, improve work efficiency, and prevent pressure ulcers. However, they were concerned about an increase in other aspects of their workload and in patient safety problems due to false alarms, inaccuracies, and malfunctions of the device. Nurses suggested various features that can be integrated into smart mattress. It is critical to address nurses' perceptions, expectations, and concerns during the conceptual and developmental stage of new technology in order to improve the usability, acceptance, and adoption of smart mattresses and other new innovations in hospital settings.

Organization factors influencing quality of work life among seniors' care workers with severe low back pain

OBJECTIVES

The prevalence of work-related low back pain (LBP) is high among care workers and can negatively affect quality of work life (QWL). To improve workplace satisfaction, this study aimed to identify factors influencing QWL among seniors' care workers with severe LBP.

METHODS

A questionnaire survey including items on demographics, qualifications, basic job responsibilities, job stressors, LBP severity, QWL, and job satisfaction was conducted in 2018. In total, 1000 senior care facilities were selected via random sampling and eight care workers per institution were asked to complete the survey. Multiple logistic regression analysis was used to identify independent factors influencing QWL of care workers with and without severe LBP.

RESULTS

Data from 1247 care workers with severe LBP and 2009 with nonsevere LBP were included in the analysis. Overall QWL was lower in the severe LBP group than in the nonsevere LBP group. In both groups, human relationships, workplace support, discretionary responsibility level, and working hours or time off were identified as common factors influencing QWL. In the severe LBP group, the salary was also a significant influence on QWL, while in the nonsevere LBP group, the number of workers, promotion or official position, and caregiving technique were identified as significant QWL factors.

CONCLUSIONS

The QWL of care workers with severe LBP was strongly influenced by salary. Since care workers suffering from severe LBP are working for a salary while enduring the pain and do not have found a worth doing, they need to prevent LBP and get job satisfaction and self-progress.

The impact of mechanical devices for lifting and transferring of patients on low back pain and musculoskeletal injuries in health care personnel-A systematic review and meta-analysis

OBJECTIVES

Heavy lifting in nursing is highly associated with low back pain (LBP) and musculoskeletal injuries (MSI). We aimed to evaluate the impact of mechanical devices used for patient lifting and transferring on risk of LBP and MSI of health care personnel.

METHODS

We conducted a systematic review and meta-analysis. The literature search was performed during 1st and 12th September 2021 using 17 electronic databases and handsearching of bibliographies of included studies. Twenty studies were included in the qualitative synthesis and eight studies with in total 2087 participants in the meta-analysis. Dependent on the study design, risk of bias was assessed by Cochrane RoB 2.0, EPOC, and MINORS. We conducted random-effects meta-analyses assessing Hedges's g and 95% CI of MSI rate, perceived LBP, and peak compressive spinal load. We calculated prediction intervals and conducted a cost-benefit analysis (CBA).

RESULTS

All outcomes showed significant, adjusted pooled effect sizes (MSI rate: g = 1.11, 95% CI 0.914-1.299; perceived LBP: g = 1.54, 95% CI -0.016-3.088; peak compressive spinal load: g = 1.04, 95% CI -0.315 to 2.391). True effect sizes in 95% of all comparable populations fell in the following prediction intervals: MSI rate = -1.07-3.28, perceived LBP = -0.522-3.594, and peak compressive spinal load = -15.49 to 17.57. CBA revealed cost-benefit ratios of 1.2 and 3.29 between cumulative total savings and investment costs of intervention.

CONCLUSIONS

Prediction intervals confirmed strong true effect sizes for MSI rate and perceived LBP in 95% of all comparable populations but not for peak compressive spinal load. Mechanical lifting and transferring devices displayed a favorable cost-benefit ratio and should be considered for clinical implementation.

Changes in risk factors for severe low-back pain among caregivers in care facilities in Japan from 2014 to 2018

In Japan, the practice of the no-lift policy, which states that care recipients should be lifted with care equipment rather than by human power, has been increasing since around 2014. The purpose of this study was to examine whether severe low back pain (LBP) risk factors in caregivers changed between 2014 and 2018. A questionnaire survey targeting administrators and caregivers working in care facilities for the elderly was conducted in 2014 and 2018. A total of 612 facilities and 2,712 caregivers responded to the questionnaires in 2014, and 504 facilities and 3,478 caregivers completed the questionnaires in 2018. The percentage of caregivers who experienced severe LBP did not differ significantly between 2014 (37.3%) and 2018 (38.3%). However, the number of facilities that introduced care equipment for transfer increased in 2018. Moreover, the number of participants who received training on care methods and using care equipment increased. Lifting a facility resident using human power and taking an unsuitable posture were associated with severe LBP in 2014, but only taking an unsuitable posture was associated with severe LBP in 2018. As taking an unsuitable posture remains to be a primary risk factor for severe LBP, it needs to be addressed in care facilities.

Combined Effects of Physical Behavior Compositions and Psychosocial Resources on Perceived Exertion Among Eldercare Workers

Objectives

High perceived physical exertion is common in eldercare workers and a strong predictor for impaired health. However, little is known on how physical behaviors at work associate with physical exertion in this group. The aim of this study was to determine the extent to which the composition of physical behaviors at work is associated with perceived physical exertion in nursing home eldercare workers, and the extent to which these associations are modified by psychosocial resources.

Methods

Our population consisted of 399 female eldercare workers from 126 wards in 20 different nursing homes. We evaluated time spent in physical behaviors at work [sitting, standing still, light activities (LAs), and moderate to vigorous activities (MVAs)] using triaxial accelerometers worn, on average, for three working days. We accounted for inherent codependency between the behaviors using compositional data analysis. We used multilevel linear mixed regression models to determine associations between the behaviors and perceived exertion, measured on a numeric rating scale (0–10), and included interactions between each behavior and psychosocial resources (influence at work, social support, and quality of leadership) to determine a possible moderating effect of resources. Regression results were illustrated using isotemporal substitution.

Results

Sitting was negatively (β: −0.64; P < 0.01) while MVA was positively (β: 0.95; P = 0.02) associated with perceived exertion. According to isotemporal substitution, replacing 30 min of MVA by sitting would, for an average worker, be associated with a decrease in physical exertion by −0.14 on the 0–10 scale. Job resources marginally moderated the association between LA and exertion. Thus, among workers with low influence and low social support, we found a positive association between LA and exertion, while that was not found for workers with medium or high influence and support (interactions for influence and support: P = 0.08 and P = 0.10).

Conclusions

Our findings suggest that reallocating time from MVA to sitting can mitigate perceived physical exertion in eldercare workers. More time in LA increased physical exertion only for workers with low psychosocial resources, supporting a positive effect of a better psychosocial work environment in elderly care.

Surface-acting emotional labor predicts depressive symptoms among health care workers over a 2-year prospective study

OBJECTIVE

Surface-acting emotional labor (SaEL) is the requirement to hide or suppress felt emotions to achieve acceptable job performance. It is a common feature of jobs featuring interactions with the public, such as customers or patients. Resulting emotional inauthenticity is associated with psychological strain, but there have been few prospective studies of mental health outcomes.

METHODS

A self-administered questionnaire was distributed in 24 skilled nursing facilities at baseline and 23 facilities 2 years later. Permanent full-time and part-time employees in all jobs were eligible to participate. Respondents in these analyses provided survey information on the frequency of SaEL at baseline and depressive symptoms on both occasions. Those without depression at baseline were deemed at risk. Multivariable logistic regression modeling estimated adjusted odds ratios (aOR) for SaEL, other job features, and demographic characteristics.

RESULTS

A total of 939 eligible participants had no depression at baseline; 15% developed depressive symptoms. About two-thirds were direct care providers, including 38% nursing and medical assistants. Adjusted for potential confounders, workers with intermediate and high SaEL had a higher risk (aORs around 2). Symptom onset was also predicted by high work-family conflict, younger age and low decision latitude at work.

CONCLUSIONS

In this prospective study of long-term care workers, those who reported experiencing high SaEL at the time of the baseline survey were at higher risk of developing depressive symptoms 2 years later. Both exposure and outcome could have suffered some misclassification. Future studies should examine a broader range of strategies for coping with emotional labor demands.

Development and Feasibility Testing of a Contextual Patient Movement Intervention

INTRODUCTION

Nurses and emergency medical services workers frequently suffer musculoskeletal injuries at a disproportionate rate in relation to the rest of the population. The most common form of this musculoskeletal injury is lumbar spine injury. The purpose of this study was to develop and conduct phase 1 feasibility testing of a contextual lifting intervention that reduces the risks of low back injury.

METHODS

This study was an intervention development and phase 1 feasibility test. The intervention was created on the basis of weightlifting techniques to specifically reduce the incidence injury related to valgus knee, asymmetrical lifting technique, and rotation of the trunk and pelvis. Motion capture technology (Xsens; Xsens Technologies) was used while 17 nursing students completed the direct patient lift from the floor, the lift from the floor with a manikin attached to a rigid spine board, the push portion of the horizontal transfer, and the pull portion of the horizontal transfer. Pre- and postintervention data were collected. Linear mixed model regression, with pairwise comparisons, was conducted for each lift at the time points of preintervention, immediately after the intervention, and 1-month postintervention.

RESULTS

Significant changes were noted between the initial lifting techniques used and those used after the intervention. The maximum lever arm distance, defined as the distance from L5-S1 to the center of the force applied to the load, showed a significant reduction after the intervention in 3 of the 4 movements.

DISCUSSION

Our results support the idea that injury risk can be reduced through appropriate contextual training methods.

[Evaluation of the effectiveness of an intervention program in family caregivers of dependent persons, in the primary health care system]

Objetivo

Evaluar la eficacia de una intervención a cuidadores no profesionales (CNP).

Diseño

Estudio cuasiexperimental de tipo antes/después, sin grupo control.

Emplazamiento

Atención primaria; 5 Zonas Básicas de Salud (ZBS) en Castelló.

Período

Entre el mes de enero de 2018 y el mes de enero de 2019.

Participantes

72 CNP participantes en una intervención específica de reciente implementación en el Departament de Salut de Castelló.

Intervención

Formación a CNP buscando mejorar el conocimiento del cuidado de personas dependientes y facilitando apoyo. Diez sesiones grupales de 120 min.

Mediciones principales

Descriptivo sociodemográfico. Comparación de las variables sobrecarga, dolor lumbar (DL), apoyo social y calidad de vida relacionada con la salud (CVRS) antes-después de la intervención. Variable respuesta: sobrecarga del cuidador. Análisis descriptivo y bivariante.

Resultados

Todos los CNP presentaban sobrecarga basal (59,93 ± 14,71); el 73,3% manifestaban DL, con un nivel medio de 5,13 ± 2,56 e incapacidad moderada (41,7%). El 50% percibían escaso apoyo social y gran afectación de la CVRS, sobre todo en términos de dolor y ansiedad. Tras la intervención se encontró una mejora significativa (p = 0,004) en el apoyo social, así como cambios positivos de carácter descriptivo en la incapacidad por DL y dimensiones de la CVRS. No se hallaron progresos (p > 0,05) para la presencia y en el nivel de DL, así como en los niveles de sobrecarga.

Conclusiones

La intervención resulta efectiva para mejorar el apoyo social percibido. Sin embargo, el escaso impacto sobre otras variables aconseja reconsiderar sus contenidos, así como animar a nuevos estudios prospectivos que puedan ofrecer resultados más alentadores.

Musculoskeletal disorders in aged care workers: a systematic review of contributing factors and interventions

BACKGROUND

There is limited evidence on contributing factors and effective interventions for musculoskeletal injuries in aged care workers.

PURPOSE

To systematically review the factors that contribute to musculoskeletal disorder risk amongst workers in the aged care industry, and to undertake a qualitative comparison of the interventions designed and implemented to prevent injury within this workforce.

METHODS

A systematic review of the literature was conducted in Web of Science, Scopus, ProQuest, Medline, and PubMed. Relevant grey literature was also examined. Articles that reported factors that contribute to musculoskeletal injuries, or interventions to prevent and manage musculoskeletal injuries in residential aged care workers were included.

FINDINGS

Of the 864 articles and 35 grey literature publications found, 63 and 29 were included in the review respectively. Results indicate that physical factors such as manual handling of people, use of assistive devices, and physical work environment are most commonly associated with musculoskeletal disorders in this population. Limited evidence of organisational and psychosocial factors considered staffing issues, work schedules, and violence. The heavy emphasis on physical factors is echoed in the grey literature in relevant guidance material and codes of practice focused on assessment and control of risks. There was limited evidence for interventions specific to aged care; existing evidence focused on equipment, training and education, policy and procedure. Interventions incorporating a combination of approaches, such as equipment and training, showed promise while preliminary evidence of the effectiveness of participatory approaches are positive.

DISCUSSION

Interventions which address multiple types of contributing factors are needed to adequately prevent musculoskeletal injuries in aged care workers. Tweetable abstract: Review of contributing factors, interventions, and application of knowledge for work-related musculoskeletal injuries in aged care.

Assessment of pressure pain threshold at the cervical and lumbar spine region in the group of professionally active nurses: A cross-sectional study

OBJECTIVES

The problem of spinal pain among nurses and lack of compliance with workplace ergonomy is increasing. The study aimed to assess the pressure pain threshold (PPT) at the cervical and lumbar spine in nursing staff.

METHODS

The sample of this prospective and observational study consisted of 30 female nurses with a mean age of 38.6 ± 11.1 years. The standardized Oswestry (ODI) and the Neck Disability Index (NDI) were used, as well as the Authors' Designed Questionnaire (ADQ) was used to assess compliance with ergonomic principles. The PPT analysis using a computerized pressure algometer (CPA) was performed to examine the level of PPT.

RESULTS

A mild disability was found in 56% of nurses (NDI and ODI). A value of <4 kg/cm2 (CPA), indicating musculoskeletal overload was observed in 57% of subjects. Also, 60% of nurses work with a lying patient; 73.4% grabs the patient's armpits while transferring in bed; 16.7% never adjusts the height of the bed, and only 13.4% choose specialist footwear for work. There is a correlation between PPT values for trapezius and erector spinae muscles on the same side of the body in nurses with mild and moderate disability (P < .05).

CONCLUSIONS

Pain complaints are associated with lower PPT of trapezius and erector spinae muscles and asymmetry of muscle tension. Also, it was noted that the lack of implementation of ergonomic principles by nursing staff affects their degree of disability.

Association between Psychosocial Working Conditions and Perceived Physical Exertion among Eldercare Workers: A Cross-Sectional Multilevel Analysis of Nursing Homes, Wards and Workers

This cross-sectional multilevel study aims at investigating the associations between psychosocial working conditions of different workplace levels and perceived physical exertion among eldercare workers. Data were obtained from the 'Danish Observational Study of Eldercare work and musculoskeletal disorderS' (DOSES) study, including 536 eldercare workers, nested in 126 wards and 20 nursing homes. Psychosocial working conditions were measured by the Copenhagen Psychosocial Questionnaire (COPSOQ). The physical workload was measured with a self-administered scale (0-10) rating perceived physical exertion. Multilevel linear mixed models were used to determine associations of psychosocial conditions between nursing homes, wards, and workers with physical exertion. Most of the variance in the perceived physical exertion was explained by differences between workers (83%), but some variance was explained by wards (11%) and nursing homes (6%). Workers employed in nursing homes with low influence (p = 0.01) and poor leadership (p = 0.02), and in wards with high quantitative demands (p = 0.03), high work pace (p < 0.001), and low justice (p = 0.01) were at increased risk of reporting higher physical exertion. The strongest associations were found for low influence, low quality of leadership, and high work pace at nursing homes and ward levels. In conclusion, improving specific psychosocial working conditions at nursing home and ward levels may be of particular importance to reduce excessive physical workload in eldercare workers.

Impact of a Safe Resident Handling Program in Nursing Homes on Return-to-Work and Re-injury Outcomes Following Work Injury

Purpose This study examined the impact of a Safe Resident Handling Program (SRHP) on length of disability and re-injury, following work-related injuries of nursing home workers. Resident handling-related injuries and back injuries were of particular interest. Methods A large national nursing home corporation introduced a SRHP followed by three years of training for 136 centers. Lost-time workers' compensation claims (3 years pre-SRHP and 6 years post-SRHP) were evaluated. For each claim, length of first episode of disability and recurrence of disabling injury were evaluated over time. Differences were assessed using Chi square analyses and a generalized linear model, and "avoided" costs were projected. Results The SRHP had no impact on length of disability, but did appear to significantly reduce the rate of recurrence among resident handling-related injuries. As indemnity and medical costs were three times higher for claimants with recurrent disabling injuries, the SRHP resulted in significant "avoided" costs due to "avoided" recurrence. Conclusions In addition to reducing overall injury rates, SRHPs appear to improve long-term return-to-work success by reducing the rate of recurrent disabling injuries resulting in work disability. In this study, the impact was sustained over years, even after a formal training and implementation program ended. Since back pain is inherently a recurrent condition, results suggest that SRHPs help workers remain at work and return-to-work.

Can We Trust the Literature on Risk Factors and Triggers for Low Back Pain? A Systematic Review of a Sample of Contemporary Literature

Background

Risk factors (RFs) for the "disease" of low back pain (LBP) are probably different from the triggers of new episodes of LBP. Investigating RFs for the onset of the "disease" and the triggers of LBP is problematic if researchers fail to discern the different types of pain-free status of participants at and before baseline. There is a difference between never having had LBP and having been pain-free for a certain period only. In this review, we assessed the dependability of contemporary literature on RFs and triggers of LBP, in relation to the "disease" and the episodes, respectively.

Methods

A literature search from 2010 until 2017 was performed. Information on the definitions of LBP, potential RFs/triggers, and study design was extracted. Studies were reclassified based on the type of LBP concerning the "disease," episode, or mixed/unclear/chronic. RFs and triggers were grouped into major domains, and positive associations listed, respectively, for the "disease" and episodes.

Results

In 42 of the included 47 articles, it was not clear if the authors investigated RFs for the "disease" of LBP or triggers of new episodes. Only one study properly reported RFs for the onset of the "disease" of LBP, and four studies were deemed suitable to investigate triggers for a new episode of LBP. No study reproduced the results of other included studies.

Conclusion

Trustworthy information regarding RFs and triggers of LBP is rare in the current literature. Future research needs to use precise definitions of LBP (onset of the "disease" vs. episodes) and nominate the timing of the associated factors in relation to the types of LBP as these are two critical factors when studying causes of LBP.

Prospective Evaluation of Fidelity, Impact and Sustainability of Participatory Workplace Health Teams in Skilled Nursing Facilities

Organizational features of work often pose obstacles to workforce health, and a participatory change process may address those obstacles. In this research, an intervention program sought to integrate occupational safety and health (OSH) with health promotion (HP) in three skilled nursing facilities. Three facilities with pre-existing HP programs served as control sites. The intervention was evaluated after 3-4 years through focus groups, interviews, surveys, and researcher observations. We assessed process fidelity in the intervention sites and compared the two groups on the scope of topics covered (integration), program impact, and medium-term sustainability. The intervention met with initial success as workers readily accepted and operationalized the concept of OSH/HP integration in all three intervention facilities. Process fidelity was high at first but diminished over time. At follow-up, team members in two intervention sites reported higher employee engagement and more attention to organizational issues. Two of the three control facilities remained status quo, with little OSH/HP integration. The intervention had limited but positive impact on the work environment and health climate: staff awareness and participation in activities, and organizational factors such as decision-making, respect, communication, and sharing of opinions improved slightly in all intervention sites. Resources available to the teams, management support, and changing corporate priorities affected potential program sustainability.

Priority approaches of occupational safety and health activities for preventing low back pain among caregivers

Objectives

The incidence of occupational low back pain (LBP) is high among caregivers. The use of care equipment and training about care methods could prevent LBP among caregivers. However, in care facilities in Japan, these measures are not adequately employed. Moreover, the care facilities have faced issues regarding poor staffing in recent years. The present study investigated the relationship between LBP and occupational safety and health activities (OSHAs) for preventing LBP among caregivers and aimed to validate the priority approaches of OSHA.

Methods

This cross‐sectional study was conducted in care facilities for the elderly in Japan. Questionnaires for administrators and caregivers were distributed to 1,000 facilities and 5,000 caregivers, respectively. Questionnaires completed by 612 facilities and 2,712 caregivers were analyzed.

Results

No direct association was observed between severe LBP and OSHA, but indirect association was done. A significant relationship was noted between severe LBP and the care methods. Direct factors causing severe LBP were lifting a resident using human power and taking an unsuitable posture. These care methods were associated with the following OSHAs: promoting the use of care equipment, training about care methods, and consultation regarding the use of care equipment and employing an appropriate care method with the person in charge.

Conclusions

These OSHAs decreased lifting a resident using human power and taking an unsuitable posture, which are the primary risk factors of LBP. Therefore, these OSHAs should be implemented as priority approaches to prevent LBP among caregivers in care facilities for the elderly.

Survey on chronic disabling low back pain among care workers at nursing care facilities: a multicenter collaborative cross-sectional study

Purpose: Care workers at nursing care facilities have a high rate of low back pain (LBP). Although increasing evidence has revealed the important role of psychosocial factors in chronic LBP, factors associated with chronic LBP interfering with work have not been fully investigated in Japanese workers at nursing care facilities. The present study aimed to determine the prevalence of chronic LBP interfering with work and related factors of chronic LBP including psychosocial factors, among workers at nursing care facilities.

Material and methods: Eligible participants in the present study were Japanese workers at 95 nursing care facilities in Ishikawa Prefecture (n=2,242). Of these, 1,345 participants completed a self-administered questionnaire that included the following items: individual characteristics, severity of LBP, sleep problem, fear-avoidance beliefs (Tampa Scale for Kinesiophobia: TSK), STarT Back Screening Tool (SBST), fatigue, somatizing tendency, and work-related stress such as job satisfaction, job demand, interpersonal stress at work, and social support. The logistic regression analysis was used to assess factors associated with chronic disabling LBP.

Results: Of participants who completed the questionnaires, 159 (11.8%) reported chronic LBP that interfered with their work. The multivariable analysis of related-factors of chronic disabling LBP found statistically significant associations with the following: high score of psychological subscale in SBST (adjusted odds ratio [aOR]: 5.83, 95% confidence interval [CI]: 3.55–9.59), high score of TSK (aOR: 1.08, 95% CI: 1.05–1.13), and high somatizing tendency (aOR: 2.07, 95% CI: 1.31–3.23).

Conclusion: Psychological factors, including fear-avoidance beliefs or somatizing tendency, showed significant association with chronic LBP that interfered with work, among workers at nursing care facilities. Our results suggest that these factors would need to be considered in addition to screening for the risk factors of LBP chronicity by SBST when evaluating workers with chronic disabling LBP.

Effectiveness of re-education based on appropriate care methods using welfare equipment on the prevention of low back pain among care workers: a 1.5 year follow-up study

Many care workers at elderly care facilities in Japan suffer occupational low back pain (LBP) despite the utilization of welfare equipment. When introducing welfare equipment such as hoists and sliding boards, education on appropriate care methods using welfare equipment is usually conducted, but the effect of education diminishes with time. This intervention study aimed to examine the effect of re-education on appropriate care methods using welfare equipment on the prevention of care workers' LBP at an elderly care facility. At the intervention facility, 49 care workers were enrolled in ergonomic education program for 1.5 yr in order to improve care methods using welfare equipment. At the non-intervention facility, 33 care workers were not enrolled in the program. Rates of severe LBP were not significantly different between the facilities. However, during the study period, the rate of severe LBP among care workers did not increase at the intervention facility, while it doubled among care workers at the non-intervention facility. The care workers at the intervention facility showed improvement in care methods using welfare equipment during the study period. Hence, we think that re-education regarding appropriate care methods using welfare equipment has the potential to prevent exacerbation of LBP.

Knee pain in nursing home workers after implementation of a safe resident handling program

PURPOSE

Approximately 25-30% of nursing personnel experience knee pain (KP). We sought to identify physical and psychosocial work exposures, and personal factors related to prevalent, incident, and persistent KP 5-8 years after safe resident handing program (SRHP) implementation in nursing homes.

METHODS

Health and exposure information was obtained from worker surveys 5-6 years ("F5") and 7-8 years ("F6") post-SRHP implementation. Prevalent KP correlates were examined at F5; persistent and incident KP predictors were analyzed at F6, utilizing robust Poisson multivariable regression.

RESULTS

F5 KP prevalence (19.7%) was associated with combined physical exposures, and with either high job strain or low social support, in separate models. Two-year persistent KP was similarly associated with these psychosocial exposures. Being overweight was associated with KP in all analyses.

CONCLUSIONS

The SRHP program did not eliminate knee physical loading, which should be reduced to prevent nursing home worker KP. Workplace psychosocial exposures (high job strain, low social support) also appeared germane.

Older females in the workforce - the effects of age on psychophysical estimates of maximum acceptable lifting loads

The number of older workers in the workforce is increasing substantially, and advanced age is associated with factors that could influence musculoskeletal injury risk and work capacity. This study's goals were to test whether psychophysical estimates of maximum acceptable weight of lift (lift_max) differed between younger and older workers, and to examine potential explanatory factors. Twenty-four female workers (half 50 + years; half 20-32 years) self-adjusted a box's mass to their perceived lift_max during four lifting tasks. Older workers' lift_max values were significantly lower (by approximately 24%) than their younger counterparts. There were no age-related differences in resting heart rate, or peak joint angles and final heart rate during the lifting trials. However, the older group demonstrated lower grip strength (by 24%), and lower heart rate reserve during the trials (by 18%). These results question whether current maximum acceptable lifting weights based on psychophysical information are appropriately protective for female workers greater than 50 years of age. Practitioner Summary: This psychophysical study demonstrated that older female workers (aged 50-63 years) selected maximum acceptable lift masses that were (on average) 24% lower than younger workers (aged 20-32 years), which corresponded with lower grip strength and heart rate reserve. Current maximum acceptable lifting weights based on psychophysical information may not protect female workers greater than 50 years of age.