Oral Communication

Evaluation of i-Préventive: active prevention digital tool for musculoskeletal disorders among computer workers.

Ms Charlotte LANHERSa, Dr Bruno PEREIRAb, Dr Charlotte MAUBLANTc, Dr Gilles GARDEc, Prof Emmanuel COUDEYREa

a Service de Médecine Physique et de Réadaptation CHU Gabriel Montpied Clermont-Ferrand, b Délégation à la recherche clinique et à l'innovation CHU Gabriel Montpied Clermont-Ferrand, c Service Santé au Travail Entreprise Michelin Clermont-Ferrand

Objective: To evaluate the effects of a software program that stimulates extra breaks with a personalized self-program exercises form, on pain and/or function, among computer workers who have upper-limb musculoskeletal disorders with visual discomfort (1).

Methods: A cluster randomized controlled trial was performed. Each group was composed of symptomatic and asymptomatic employees. We conducted a prospective feasibility study developed in two different sites of Michelin firm. Cluster randomization was used for office locations. The study lasted 5 months. The main outcome was the overall recovery from complaints after one-month intervention, using «the Nordic style questionnaire» and eyestrain questionnaire (2).

Results: 96 workers included in the intervention group,79 in the control group. The most painful areas (VAS ≥2) are: neck (40 %), upper back (18, 8%), shoulders (15, 7%). Concerning, the most painful anatomical area, the Nordic score significantly decreases after one month utilization in the intervention group (p=0,038) versus control group (p=0.59).After one month utilization, in the intervention group, the painful area and visual discomfort symptoms number decrease (p=0.02). After one month, the adhesion of the system is satisfactory (almost 60 % of employees).

Discussion: In the short term, the active breaks use in the musculoskeletal disorders and eyestrain treatment is effective using the software program. It is a numerical simple tool to use, which allows each worker to interact on areas of their choice by offering personalized exercises easily achievable on workplace.

(1) Clinical examination protocol for upper-limb musculoskeletal disorders identification. French adaptation of European consensus SALTSA.InVs- INRS 2010.

(2) Descatha A, et al. Validity of Nordic-style questionnaires in the surveillance of upper-limb work-related musculoskeletal disorders. Scand J Work Environ Health. 2007;33(1):58-65.

Keywords : musculoskeletal diseases, eyestrain, computer work, muscle streching exercises, rest, application software program