The effects of neck-shoulder pain development on sensory-motor interactions among female workers in the poultry and fish industries. A prospective study.

摘要: Abstract Objectives. The purpose of this prospective laboratory study was to follow newly employed workers in the fish or poultry industry for 6 months and investigate possible changes sensory manifestations motor performance during low load, repetitive work simulation. It investigated whether were an effect employment duration development neck–shoulder complaints. Methods. Twelve female filleting employees without any sign tenderness/pain at time 0 took part two recording sessions planned within 1 month after plant. After months, six out 12 had developed pain and/or tenderness region. evaluated sensory-motor aspects by measuring pressure threshold, work-task timing, cutting forces, surface electromyographic activity four shoulder muscles, displacement centre pressure, 3D movements arm trunk simulation filleting. Results. Effects due observed both groups, i.e. decreased sensibility decrease cycle, increased starting position with respect upright position, range motion (P<0.05) months. Among complaints, lower force level, higher activity, amplitude movement, posture movement observed, compared Conclusions. Differences terms control strategy seen In general, most likely importance, as they underlined a learning process increased. Moreover, present sensory–motor among complaints highlighted potential physical risk factors associated work.