Trastornos musculoesqueléticos y su relación con la exposición a vibraciones en operadores de montacargas en una empresa Papelera, 2025

Abstract

Forklift operators are exposed to whole-body vibration (WBV) and biomechanical loads that could increase musculoskeletal disorders (MSDs).Objective: To analyze the association between musculoskeletal discomfort (CMDQ) and normalized daily exposure A(8) to WBV in forklift operators in a paper industry in Cotopaxi, Ecuador. Methods: Quantitative, observational, descriptive-correlational, cross-sectional study with 54 male operators. WBV was measured with a triaxial accelerometer in the seat following ISO 2631-1:1997; A(8) was calculated. Discomfort was assessed with the Cornell Musculoskeletal Discomfort Questionnaire (CMDQ). Descriptive statistics were applied; Spearman for correlations; Kruskal–Wallis and ANOVA with Bonferroni for comparisons; chi-square/Fisher and binary logistic regression by anatomical regions (α=0.05).