Inducing exposure variability during computer work ...

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11th International Symposium on Human Factors in Organisational Design and Management (ODAM 2014) CPH Conference

Inducing exposure variability during computer work in the shoulder girdle with and without experimental pain
Paper
Author:Afshin SAMANI (Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Aalborg University, Denmark)
Pascal MADELEINE (Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Aalborg University, Denmark)
Date: 2014-08-20     Track: B - Special sessions     Session: B8 - Aspects of motor control in ergonomics
DOI:10.4122/dtu:2555

We present a short review of studies comparing the effect of passive with active pause during computer work and their interaction with the experimental muscle pain. The subjects performed a standardized computer task. We asked them to either perform an isometric shoulder elevation (active pause), or simply relax (passive pause) on a regular basis. Subsequently, exogenous and endogenous models of experimental pain were applied to the trapezius muscle. We observed a more variable pattern of muscular activity in response to active pause but this potentially beneficial effect was less potent in presence of experimental pain.