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Impact of time pressure and pauses on physiological responses to standardized computer mouse use—a review of three papers focusing on mechanisms behind computer-related disorders

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Author(s): Albert G Crenshaw | Eugene Lyskov | Marina Heiden | Gerd Flodgren | Fredrik Hellström

Journal: SJWEH Supplements
ISSN 1795-9926

Issue: 3;
Start page: 68;
Date: 2007;
Original page

Keywords: gender | computer mouse work | near-infrared spectroscopy | infrared spectroscopy | position sense | spectroscopy | proprioception | sense | review | kinematics | subjective fatigue | pause | wrist kinematics | wrist | time pressure | impact | physiological response | pressure | work pause | standardized computer mouse use | disorder | computer-related disorder | computer | forearm

ABSTRACT
This paper reviews three computer mouse studies in our laboratory in which our emphasis was on mechanisms behind computer-related disorders. Our approach was sequentially (i) to determine the validity of a laboratory model for computer mouse use (painting rectangles) for studying musculoskeletal disorders, (ii) to use this model to study time pressure and precision demands on position sense and muscular oxygenation, and (iii) to use this model to determine the effect of pauses (active versus passive) on these parameters. Kinematic data for the painting model showed constrained movements of the wrist similar to that of CAD (computer-aided design) work, a support for its validity for a real-life situation. Changes in forearm oxygenation were associated with time pressure and precision demands, a potential for insight into the underlying pathophysiological mechanisms. Increasing trends in oxygenation and blood volume were associated with pauses, especially active pauses, a possible explanation for the alleviating effect of discomfort experienced in real-life situations when a pause is implemented.

Tango Jona
Tangokurs Rapperswil-Jona

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