The Effect of Soft Collar on Human Biomechanical Load and Comfort in Office Tasks
The prevalence of seated office work has increased the incidence of neck pain,and the need for the use of neck collar under non-medical advice has gradually increased.To assess the interventional role of the soft collar in typical office tasks and to explore its value for daily use,31 healthy subjects performed a prescribed seated interaction task with and without wearing a soft collar,and kinematic parameters,surface electromyographic values,and subjective evaluations were recorded.The results show that the soft collar significantly limits neck range of motion,but only affects the head and neck flexion angle and the horizontal farthest movement distance of the wrist for individual tasks,with no significant differences in the remaining kinematic parameters,erector spinae,sternocleidomastoid,and upper trapezius muscle activities are decreased across tasks,posterior neck discomfort is reduced,but slight new discomfort was added in the anterior neck.Thus,soft collar does not correct posture but reduces neck muscle loading and fatigue discomfort,does not interfere with daily life,and is suitable for use as an adjunctive intervention in daily life,although there is a risk of stress at the tissue interface.