EFFECTIVENESS OF THE MULTIDIMENSIONAL ERGONOMIC INTERVENTION (MEI) MODEL TO REDUCE MUSCULOSKELETAL DISCOMFORT AMONG STREET SWEEPERS

Abstract

High prevalence of work related musculoskeletal discomfort among street sweepers is reported worldwide. Street sweepers may be at risk for musculoskeletal discomfort (MSD) from their daily working activities. Repetitive movement of the broom, improper sweeping, poor posture may cause MSD. The aim was to evaluate the effectiveness of the Multidimentional Ergonomic Intervention (MEI) model on reducing MSD, improving physical performance and increasing awareness of safe work practices. A quasi-experiment was conducted in Chiang Rai province, Thailand. The MEI model was designed of four core components, the first as cognitive behavior therapy, the second as ergonomic education training, the third as stretching exercise and the fourth as foam sleeve broom handle grip. Seventy-five street sweepers volunteered were conducted a screening process on MSD of having level score ≥ 4 by physiotherapist. Face to face interviewed was used the musculoskeletal discomfort assessment questionnaire, physical exam by physiotherapist, physical performance by sports scientist and REBA measured from video record. Finding showed that the MEI model among intervention group was significantly reduced MSD, improved the physical performance and increased awareness safe work practice compared with among control group at exit model and follow up (p<.01). Research suggests that the MEI model was appropriated to reduce MSD, improve physical performance and increases awareness safe work associated with repetitive movement and awkward postures on task. The MEI model for sustainability should be conducted to provide among street sweepers during working daily and the new street sweepers before start working from organization.