The evaluation of ergonomic risk factors among meat cutters working in Jabalpur, India

Systematic Comparison of OWAS, RULA, and REBA Based on a Literature Review

This study aimed to systematically compare three representative observational methods for assessing musculoskeletal loadings and their association with musculoskeletal disorders (MSDs): Ovako Working Posture Analysis System (OWAS), Rapid Upper Limb Assessment (RULA), and Rapid Entire Body Assessment (REBA). The comparison was based on a literature review without time limitations and was conducted on various factors related to observational methods. The comparisons showed that although it has a significant limitation of comprising only two classifications for the leg postures, (1) the RULA is the most frequently used method among the three techniques; (2) many studies adopted the RULA even in evaluation of unstable lower limb postures; (3) the RULA assessed postural loads as higher risk levels in most studies reviewed in this research; (4) the intra- and inter-reliabilities for the RULA were not low; and (5) the risk levels assessed by the RULA were more significantly associated with postural load criteria such as discomfort, MHTs and % capable at the trunk, and MSDs.

Tire Tread Removing Units in Central India: Risk Factors and Potential Interventions

Occupational ApplicationsRisk factors for work-related musculoskeletal disorders were found to be prevalent in the informal work sector of tire tread removing units at Jabalpur in Central India. A majority of the tasks examined were in high-risk category requiring immediate ergonomic intervention. We show that using relatively simple methods, with little training, can aid in early detection of risk factors and thus help to prevent the onset of work-related musculoskeletal disorders. Based on the study results, we present several possible ergonomics interventions, which may be a cost-effective approach to reducing injury risk and enhancing productivity.

Preventive factors against work-related musculoskeletal disorders: narrative review

Musculoskeletal disorders (MSDs) are major causes of morbidity among workers. They comprise several signs and symptoms, as e.g. pain, paresthesia, fatigue and limited range of motion, which can be related to work tasks. Workplace-related factors include physical, psychological, social and biomechanical hazards. The main kinetic factors associated with MSDs include repetitive movements, exerting excessive force, awkward postures, compression and mechanical vibration. Accurate knowledge of epidemiological aspects, evaluation of ergonomic hazards and musculoskeletal symptoms, and workplace exercise may help reduce the occurrence of MSDs. The aim of the present review is to analyze the applicability of preventive strategies against MSDs among workers. We performed a narrative review based on a survey of databases PubMed and BIREME and included studies published in English, Spanish or Portuguese. We found that workplace exercise is beneficial for both employers and workers. Risk analysis of MSDs is essential for early identification of occupational hazards and to prevent health consequences and costs associated with absenteeism.

Strategies to commit senior subcontractor managers in participatory ergonomics interventions

The commitment of managers is one of the facilitators of participatory ergonomics (PE). However, to achieve this, practical practitioners' strategies vary depending on the organizational context and type of stakeholder and are poorly described in the literature. The purpose of this paper is to describe and to analyze the process and strategies that led to senior managers commitment during a decision-making intervention in a subcontracting context. A reflexive practice method was used to describe strategies implemented during a multi-site research project focusing on musculoskeletal disorders prevention in the meat processing sector. A 3 levels commitment method was developed which included: each subcontractor individually, subcontractors together, and subcontractors with their main contractor. Four strategies from the literature were firstly implemented: the creation of a steering committee, the identification of tendencies to act, the transfer of knowledge and moderation of collective discussion. An additional new strategy based on the sharing of a common interest - knife sharpening and maintenance was necessary to achieve the commitment. These results reinforce the importance of stakeholder strategies commitment in PE. A greater consideration for developing a valid framework is needed.

Postural risk associated with Wooden Steel Chairs and Stackable Arm Chairs in a low-income country

BACKGROUND

Wooden Steel Chairs (WSCs) and Stackable Arm Chairs (SACs) are widely used in tertiary institutions of learning in low income countries. No local studies seem to have investigated the postural risk associated with the concerned chair type.

OBJECTIVE

This study aimed to evaluate the postural risk associated with WSCs and SACs. It also determined the anatomical distribution of musculoskeletal complaints among users of the chair types.

METHODS

Purposive sampling was used to select 100 desktop computer users (23.25±1.6 years) of which 50% consistently used a computer laboratory with WSCs and the other half used one with SACs. The Rapid Upper Limb Assessment (RULA) method was used to evaluate the sitting posture of users of both chair types. Musculoskeletal complaints were investigated using the Nordic musculoskeletal questionnaire.

RESULTS

Analyses showed significantly higher (p < 0.05) mean RULA scores for the right side of the body for users of WSCs (6.08±0.85) compared to users of SACs (5.26±1.23). Statistically significant differences (p < 0.05) were found on the prevalence of lower back pain between users of WSCs and SACs. Among all study participants, 72% reported musculoskeletal pain at one or more body parts in the previous 12 months. Self-reported complaints pertained to the neck (24%), lower back (19%), shoulders (16%), elbow (8%), upper back (8%) and wrist (4%).

CONCLUSION

WSCs seem to pose a higher postural risk for lower back pain than SACs. Ergonomics interventions and exercise training programmes may be useful to address the poor working posture and musculoskeletal complaints.

Occupational Hazards and Health Problems among Butchers in Uyo, Nigeria

Introduction:

Butchers are exposed to various types of hazards in the course of their work, which could lead to health problems of varying severity. The aim of this study was to identify the occupational hazards and health problems of butchers in Uyo and also assess the physical conditions of their slaughter facilities.

Materials and Methods:

A descriptive cross-sectional study was carried out among 157 butchers in Uyo using a semi-structured questionnaire for data collection. Facility assessment was made using a checklist. Analysis was carried out using Statistical Package for Social Sciences version 20. Level of significance was set at 0.05.

Results:

The mean age of respondents was 33 ± 9.94 years. Most respondents were males (83.4%). The most commonly reported workplace hazards were knife (93.6%), bones (57.3%), and slippery floor (24.8%). The most common health problems were knife cuts (87.3%), cuts from bones (50.3%), and neck pain (36.9%). Having injuries from live animals and back pain were significantly associated with working with cows (P < 0.05). The most common de-furring method was burning with firewood (61.1%). The slaughter facilities lacked many expected amenities of a standard abattoir.

Conclusion:

Identified hazards and health problems of butchers were numerous. The slaughter facilities lacked appropriate equipment that promotes workers’ health and safety. It is recommended that slaughter facilities be upgraded to meet the standard abattoir practice. Regular training of butchers should be organized by their association to encourage safer practice, including the use of appropriate protective wears. Use of the chemical method of de-furring should also be encouraged to limit exposure to harmful gases.

Factors Influencing the Health and Safety of Temporary Foreign Workers in Skilled and Low-Skilled Occupations in Canada

This article reports on a study of occupational health and safety (OHS) challenges for temporary foreign workers (TFWs) in low- and high-skilled occupations, based on twenty-two cases drawn from a broader study in three Canadian provinces. Interviewees in construction, meat processing, hospitality, and fast food reported concerns regarding working conditions and OHS issues. They include precarious migration status affecting voice; contrasting access to social support; and mechanisms undermining regulatory effectiveness. Sources of vulnerability include closed work permits (making workers dependent on a single employer for job security and family reunification); ineffective means to ensure contractual compliance; and TFW invisibility attributable to their dispersal throughout the labor market. Violations include increased workload without an increase in pay and non-compliance with OHS and contractual rules without oversight. Positive and negative practices are discussed. Recommendations include improving migration security to preserve worker voice and facilitating communication between immigration and OHS authorities.