Impact of physical and psychosocial factors on disability caused by lumbar pain amongst fishing sector workers

Chronic lower back pain in aquaculture clam farmers: adoption and feasibility of self-management strategies introduced using a rapid prototype participatory ergonomic approach

Objectives. Lower back pain (LBP) is extremely prevalent in seafood harvesters who often have limited or no access to ergonomic consultation, occupational health support and rehabilitation services. This pilot study aimed to describe a participatory ergonomic approach and determine the feasibility and extent of adoption of self-management strategies in clam farmers with LBP. Methods. A rapid prototype participatory ergonomic approach was used to develop context-specific self-management strategies. Options to adjust lifting and repetitive stress were introduced using video clips, demonstrations and discussions in the workplace. Workers chose and implemented three strategies for 8 weeks with weekly reminders. Survey and qualitative data from focus groups were analyzed. Results. Team strategies were the most popular, but individual options were used more often. Strategies were considered feasible, acceptable and relatively easy to use. Strategies were implemented relatively consistently, and most improved productivity with decreased pain. Challenges for uptake included changing habit, culture and team dynamics. Conclusions. Participatory rapid prototyping provided a feasible and efficient option to introduce strategies for clam farmers with small teams, variable work processes and workloads, and time restrictions. Strategies were considered acceptable and easy to use, and most increased productivity. These methods show potential for future research.

Outcomes of Participatory Ergonomics and Self-management in Commercial Clam Farmers with Chronic Low Back Pain: A Feasibility Study

PURPOSE

Participatory ergonomics engages workers in the development of strategies to reduce workplace-related pain, offering a flexible and practical option to create individualized context-specific strategies. This paper describes the outcomes of a feasibility study using a participatory approach for self-management of low back pain in clam farmers.

METHODS

A within-subject time-control design with repeated baseline and post-intervention assessment was used. After refining individual and team-based strategies, stakeholder interviews, and rapid prototyping, workers selected three strategies to use for 8 weeks. Frequency and ease of use for strategies are described. Pre-post paired t-tests were used for analysis of pain-related disability, difficulty and pain with work tasks, pain-related fear, self-efficacy, and coping. Analysis of improvements exceeding published and individual variability was calculated.

RESULTS

Participants chose both team and individual strategies, most using strategies 5 days a week >50% of the time. Significant improvements in pain-related disability, pain during specific tasks, pain-related anxiety, and coping were seen after 8 weeks of implementing strategies. No changes in task difficulty, fear, self-efficacy and average resting pain were reported. Pain improvements > MDC₉₅ were reported by 74% with 56-64% > personalized MDC₉₅ for lifting tasks.

CONCLUSIONS

Pain-related disability, work activity pain ratings and related pain anxiety and coping improved beyond individual variability in this feasibility study. Multiple strategies allowed workers to choose relevant self-management options. Introduction of work-related changes in the workplace, visual demonstration, review of team videos and reminders were helpful. Further studies of this approach are needed.

Functional health and perceived exertion in artisanal fishermen working offshore

INTRODUCTION:

Fishing is a common means of obtaining raw materials for the food industry and drives a large economic market.

OBJECTIVES:

This field study aimed to evaluate functional health and work overload in artisanal fishermen.

METHODS:

This cross-sectional study included 42 workers from Zone 18 fishing community in Passo de Torres, state of Santa Catarina, Brazil. The collected data included presence of pain and its location on a Corlett body diagram, pain severity measured with a visual analog scale, perceived exertion measured with a Borg scale, and grip and lumbar strength measured with dynamometers.

RESULTS:

Forty percent of fishermen had low back pain and 26% had low back muscle weakness. Perceived exertion was greater in the activity of pulling out the fishing net.

DISCUSSION:

This professional category requires greater attention with health policies that consider the actual context of their job.

Sintomas musculoesqueléticos em catadoras de marisco

Resumo Objetivo: estimar a prevalência de distúrbios musculoesqueléticos e de seus principais fatores de risco em catadoras de marisco em uma comunidade na Bahia. Métodos: estudo epidemiológico transversal descritivo, com dados coletados em 2017 e análise estatística descritiva. Resultados: foram entrevistadas 139 mulheres, com idade média de 44,3 anos: 66,9% casadas, 89,2% pardas/pretas, 93,5% com filhos, 57,6% com escolaridade até o fundamental incompleto, e com renda mensal média de R$ 234,00 (menos de US$ 60). Predominaram trabalhadoras que exerciam a ocupação por um período ≤30 anos (58,3%), com carga horária diária de até 6 horas (54,0%), sem pausa para almoçar (89,9%), que carregavam até 25 kg em um dia de trabalho (57,6%), por um período ≤60 minutos (73,5%), e que avaliaram as condições de trabalho como muito ruim/ruim (60,4%). Todas relataram dores musculoesqueléticas e as principais queixas foram na região das costas. Evidenciaram-se como fatores de risco: excesso de movimento, muito tempo de trabalho com sobrecarga nos membros superiores, falta de descanso e ritmo de trabalho acelerado. Conclusão: as catadoras de marisco estão expostas a fatores de risco que as predispõem a lesões por esforço repetitivo e doenças relacionadas ao trabalho, o que pode explicar a alta prevalência constatada.

Factors associated with musculoskeletal disorders in artisanal fisherwomen/shellfish gatherers in Saubara, Bahia, Brazil

This article aims to identify the factors associated with musculoskeletal disorders (MSDs) in the neck/shoulder and distal upper limb in artisanal fisher/shellfish gatherers in Saubara, Bahia, Brazil. This cross-sectional epidemiological study was conducted with shellfish gatherers. The Brazilian version of the Job Content Questionnaire (JCQ), the Nordic Musculoskeletal Questionnaire (NMQ), and a questionnaire containing physical demands adapted to the labour of shellfish gatherers were used in this study. Factor analysis was performed to aggregate the physical demands. Multivariate analyses were performed according to the risk factors for MSDs in the neck or shoulder and MSDs in the distal upper limb. For MSDs in the neck or shoulders, a prevalence ratio (PR) of 1.28 (95% confidence interval [95% CI]: 1.09-1.49) was found, according to the aggregate physical demands. For MSDs in the distal upper limb, the PRs were as follows: 1.26 (95% CI: 1.07-1.47) according to the daily hours devoted to work as shellfish gatherers, 0.74 (95% CI: 0.57-0.96) according to the development of other current work and 1.38 (95% CI: 1.05-1.83) according to the aggregate physical demands. The activities performed by shellfish gatherers contribute to the occurrence of MSDs.

Prevalence and Work-Related Factors Associated with Lower Back Musculoskeletal Disorders in Female Shellfish Gatherers in Saubara, Bahia-Brazil

Lower back musculoskeletal disorders (MSDs) are an important public health problem and the leading cause of disability worldwide, but with yet unknown prevalence among shellfish gatherers. To investigate the prevalence and work-related factors associated with lower back MSD in a population of female shellfish gatherers, an epidemiological cross-sectional study was carried out in Saubara, Bahia-Brazil, in 2013. The Brazilian version of the Job Content Questionnaire (JCQ) and the Nordic Musculoskeletal Questionnaire (NMQ), in addition to a questionnaire containing the physical demands adapted to the artisanal work, were applied to a random sample of 209 female shellfish gatherers. The prevalence of lower back MSD was 72.7%. Using multivariate logistic regression, the shellfish gatherers who had worked for more than 26 years in the activity showed a prevalence of 1.22 (95% CI: 1.04–1.44) times higher compared to those unexposed. Lower back MSD was 1.24 (95% CI: 1.08–1.42) times higher among those more exposed to work sitting with trunk flexion. Those performed manual handling and muscle force with the arms had a prevalence ratio of 1.18 (95% CI: 1.01–1.39). These results show the need for greater awareness of health and social welfare factors impacting workers in small-scale fisheries and will promote the elaboration of health care policies for this occupational class.

[Musculoskeletal pain among bus drivers and fare collectors in the Metropolitan Region of Belo Horizonte, Brazil]

Musculoskeletal pain among professionals in the transport sector has been linked to working conditions. The scope of this study was to assess the prevalence of cervical musculoskeletal pain and its relation to pain in other areas (arms, hands and shoulders). The association between neck pain, related to pain in other areas or otherwise, was checked against occupational factors. A cross-sectional, descriptive and analytical study was conducted with 799 bus drivers and 708 fare collectors of the Metropolitan Region of Belo Horizonte, Brazil. The outcome was characterized according to the positive answer to the question about musculoskeletal pain in the anatomical areas studied. The prevalence of neck pain in the sample was highest at 16.3%, followed by pain in the shoulders 15.4%, arms 13.3% and hands 6.3%. The factors associated with musculoskeletal pain in the sample were being female, complaints of disability, perception of threat to safety, vibration, excessive or unbearable noise and sitting in an uncomfortable posture. The results provide clues to transformation of the workplace, thereby contributing to the enhancement of occupational health.

Prevalence of neck and upper limb musculoskeletal disorders in artisan fisherwomen/shellfish gatherers in Saubara, Bahia, Brazil

This study was conducted in an artisanal fishing community. The main health complaints included musculoskeletal disorders (MSD) attributable to working conditions. The present work found a prevalence of neck and distal upper limb MSD among the artisan fisherwomen/shellfish gatherers in Saubara, Bahia, Brazil. This was a cross-sectional cohort epidemiological study involving 209 artisanal fisherwomen/shellfish gatherers. The Brazilian version of the Job Content Questionnaire (JCQ), the Nordic Musculoskeletal Questionnaire (NMQ) and a survey listing physical demands adapted to shellfish gathering were used for the study. The MSD values obtained in some part of the body, neck or shoulder, and distal upper limb were 94.7%, 71.3% and 70.3%, respectively. The shellfish gatherers were found to work long shifts despite the high prevalence of MSD. The factors that cause these women to keep performing such activities include the need to make a living and provide food for their families through the sale and consumption of seafood.