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Purpose: This study investigates the effects of the usage of a novel camera system compared to a conventional lens system for manual precision tasks. Utilizing the novel camera system aims to improve neck posture, reduce neck muscle tension and thereby minimize the risk of neck pain.
Methods: Camera and lens systems were compared by assessing the craniovertebral angle (CVA), electromyographic activity of the M.trapezius and perceived exertion. 16 healthy participants (n = 8 female, 24 ± 2 years; n = 8 male, 30 ± 5 years) performed manual precision tasks in a cross-over design using both systems in sitting and standing positions.
Results: Analyses showed that using the camera system improved the CVA in sitting [28.4° (22.8°-33.9°) to 42.5° (38.9°-46.1°); p < 0.01] and decreased the M.trapezius activity in standing [13.1% (7.7%-18.6%) to 8.65% (5.49%-11.81%)]. Additionally, overall and neck specific perceived exertion decreased when using the camera system in standing.
Conclusions: The camera system may prevent neck pain in workers performing manual precision tasks in sitting and standing postures.
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| http://dx.doi.org/10.1016/j.apergo.2020.103147 | DOI Listing |
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