Related Experiment Video
Updated: Dec 10, 2025
Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
Published on: May 24, 2024
Improved neck posture and reduced neck muscle activity when using a novel camera based workstation for manual
Julia Gräf1, Klaus Mattes1, Kerstin Luedtke2
1Department of Human Movement Science, University of Hamburg, Mollerstraße 10, 20148, Hamburg, Germany.
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.
