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Posture Assessment of Rubber Tappers: A Comparative Analysis of OWAS, REBA, RULA, and PERA Methods
Abi Varghese1, Vinay V Panicker1, Joby George2
1Industrial Engineering Laboratory, Department of Mechanical Engineering, National Institute of Technology Calicut, Kerala, India.
La Medicina Del Lavoro
|June 19, 2025
Summary
This study assessed rubber tappers' postures using four ergonomic methods. The Rapid Upper Limb Assessment (RULA) method proved most effective for identifying postural risks in this physically demanding occupation.
Area of Science:
- Occupational Health
- Ergonomics
- Biomechanics
Background:
- Rubber tapping involves physically demanding tasks with significant postural risks.
- Existing ergonomic assessment tools may not fully capture the specific challenges faced by rubber tappers.
- A comparative analysis of different ergonomic assessment methods is needed to identify the most suitable approach.
Purpose of the Study:
- To conduct a comprehensive ergonomic assessment of rubber tappers' postures.
- To compare the effectiveness of four ergonomic assessment methods: OWAS, REBA, RULA, and PERA.
- To determine the most appropriate ergonomic assessment methodology for rubber tapping tasks.
Main Methods:
- Video analysis of 1111 working postures from 51 rubber tappers in Kerala, India.
- Application of four ergonomic assessment methods: OWAS, REBA, RULA, and PERA.
- Evaluation of each method's focus and applicability to rubber tapping activities.
Main Results:
- The workforce comprises predominantly middle-aged males engaged in strenuous physical labor.
- The Rapid Upper Limb Assessment (RULA) method is particularly effective for assessing upper limb postural loads in rubber tapping.
- Each method (OWAS, RULA, REBA, PERA) has distinct strengths, with RULA showing high suitability for this specific occupation.
Conclusions:
- Tailored ergonomic interventions are necessary for specific rubber tapping tasks like 'Incision on the Channel'.
- A context-specific approach to ergonomic assessment and intervention is crucial for improving rubber tappers' occupational health.
- Matching ergonomic tools to the unique demands of work activities enhances the effectiveness of interventions.
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