Ergonomic assessment and improvement for judicial administrative positions

Abstract

This study assessed ergonomic risks and designed an improvement proposal for administrative positions in a Basic Justice Module in Arequipa. The situational analysis identified that the positions of Administrative Assistant, Secretary, and Judicial Technician were most exposed to risks, manifested in repetitive movements, prolonged static postures, and high visual demands, causing musculoskeletal discomfort, headaches, and stress. The application of the ROSA, REBA, OWAS, and NASA TLX methodologies confirmed high levels of musculoskeletal risk in the upper and lower limbs, along with significant mental strain. The intervention proposal, validated using the Guerchet method, included job redesign, furniture modification, and ergonomic training. Its economic evaluation showed a benefit-cost ratio of 1.41, with an implementation cost of S/56,330.00 and an estimated benefit of S/465,784.50 per worker, yielding a probability of profitability of 48.54%.