Strength and Perceived Effort in Repetitive Upper-Limb Tasks: An OCRA Method Analysis of 900 Workers.

ABSTRACT:

Background

Work-related musculoskeletal disorders pose a significant burden on the population. The OCRA method plays a key role in assessing the risk associated with repetitive actions of the upper limbs. In this method, muscular force is evaluated based on the rate of perceived effort (RPE) reported by the worker, which can introduce subjective bias into the assessment. This study aims to determine whether testing the worker's handgrip strength can improve the accuracy of the force assessment in the OCRA method.

Methods

Handgrip strength was measured during the risk assessment process following the OCRA method. Data were divided into specific percentile ranks based on age, gender, height, and handedness.

Results

903 workers from 43 different Italian companies were su

SUBMITTER: Gobbo S 

PROVIDER: S-EPMC12363420 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature