A method for non-experts in assessing exposure to risk factors for work-related musculoskeletal disorders--ERIN.

A practical method for non-experts in assessing exposure to risk factors for work-related musculoskeletal disorders (WMSDs) is presented. Evaluación del Riesgo Individual (Individual Risk Assessment) (ERIN) is based on available ergonomic tools, epidemiological evidence and the joint IEA-WHO project for developing WMSDs risk management in developing countries. ERIN focuses primarily on the interaction of some physical workplace factors but also includes the workers' assessment. A scoring system has been proposed to indicate the level of intervention required to reduce the risk of injury. A worksheet has also been designed for increasing the usability of the method. Preliminary tests show that it is easy and quick to use, but further work is needed to establish its reliability and validity. The use of ERIN can contribute to the prevention of WMSDs in Cuba and other developing countries.

The discipline of ergonomics in Cuba within the occupational health framework: background and trends.

The concept of ergonomics was introduced in Cuba at the beginning of the 1970s. More than 40 years later, the prevailing approach to workers' health is still generally reactive rather than proactive, despite the commitment of the government to the subject. A factor influencing this issue is, generally, lack of recognition of the benefits of establishing ergonomic principles within most occupational activities. Recent progress to move occupational health practice toward a more preventive approach has been conducted, frequently with international support. The introduction of a set of Cuban standards proposing the necessity of ergonomic evaluations is an example of this progress. The main challenge for Cuban ergonomists is to transfer knowledge to occupational health practitioners in order to be in concordance with basic standards and regulations regarding ergonomics. The article offers a short description of the history of ergonomics and an overview of ergonomics practice in Cuba.

Evaluation and redesign of manual material handling in a vaccine production centre's warehouse.

This study was conducted in a warehouse at a vaccine production centre where improvement to existing storage and working conditions were sought through the construction of a new refrigerated store section (2-8C°). Warehousing tasks were videotaped and ergonomics analysis tools were used to assess the risk of developing MSDs. Specifically, these tools were the Rapid Entire Body Assessment (REBA) and the NIOSH equation. The current plant layout was sketched and analyzed to find possible targets for improvement trough the application of general work space design and ergonomics principles. Seven of the eight postures evaluated with REBA had a total score between 8 and 10, meaning a high risk, and only one was at a medium risk level. Nine of the eleven manual material handling tasks analyzed with the NIOSH equation had a Lifting Index between 1.14 and 1.80 and two had a recommended weight limit of 0 kg, indicating a need for job redesign. Solutions included the redesign of shelves, the design of a two-step stair and a trolley with adjustable height; also, changes in work methods were proposed by introducing a two-workers lifting strategy and job rotation, and, finally, a restructuring of plant layout was completed.

Preventing work-related musculoskeletal disorders in Cuba, an industrially developing country.

OBJECTIVES: This paper briefly describes the history of ergonomics in Cuba and also presents some ergonomic interventions carried out in major economic sectors, focused on reducing musculoskeletal risk factors. METHODS: Five studies concerning musculoskeletal risk factors were reviewed comparing the results of various ergonomic tools. Cuban legislation related to occupational health as well as statistics available on musculoskeletal disorders were examined. RESULTS: The reviewed studies were carried out using such universally recognized assessment tools as RULA, Strain Index, OWAS and NIOSH equations as well as human movement analysis software. The interventions presented are examples of a proactive approach to the improvement of workers' health. Musculoskeletal disorders are responsible for the second highest rate of total permanent disability in the Cuban work force. CONCLUSIONS: The prevailing approach to workers' health in terms of musculoskeletal disorders is basically reactive rather than proactive despite the commitment of the Cuban Government to the subject and a set of rules established to accomplish this goal. Simple tools for conducting a systematic evaluation of working conditions are needed in our context.