@inproceedings{041fb36db4b84298a8b23d692b94a4df,
title = "Impacts of typing on different keyboard slopes on the deformation ratio of the median nerve",
abstract = "Carpal tunnel syndrome is a symptomatic compression neuropathy of the median nerve as it travels through the wrist. Several factors such as wrist angle and finger posture cause a change of the intra-carpal tunnel pressure. Carpal tunnel syndrome is one of the most commonly reported work-related musculoskeletal disorders. Computer users are at higher risk of upper extremity musculoskeletal symptoms and work-related musculoskeletal disorders, since time spent on the computer is associated with a higher incidence of musculoskeletal disorders. Objective: to investigate the impact of typing at two keyboard slopes (0° and +20°) on the median nerve deformation ratio. Fifteen healthy young men (24.8 ± 2.3 years) were recruited to type using both 0° and +20° inclined keyboards. The participants performed four 30-min blocks of computer typing at 0° and +20° keyboard inclinations. The left wrist median nerve was examined with an ultrasound machine after each 30-min typing block. Two-way repeated analysis of variance was performed to examine any differences in the deformation ratio of the median nerve cross-sectional area. The four time blocks and two keyboard slope conditions (0° and +20° inclination) were used as factors. Continuous typing activity causes a significant increase in the median nerve cross-sectional area deformation ratio (p < 0.05). Ultrasonography examination of the median nerve following computer typing can be used to generate absolute measurements and deformation ratios. These measurements help provide a better understanding of the impact of typing tasks on the median nerve.",
author = "Loh, {Ping Yeap} and Yeoh, {Wen Liang} and Satoshi Muraki",
note = "Funding Information: This work is supported by JSPS KAKENHI Grant Numbers JP16J01964 and JP18K17969. Funding Information: This work is supported by JSPS KAKENHI Grant Numbers JP16J01964 Publisher Copyright: {\textcopyright} Springer Nature Switzerland AG 2019.; 20th Congress of the International Ergonomics Association, IEA 2018 ; Conference date: 26-08-2018 Through 30-08-2018",
year = "2019",
doi = "10.1007/978-3-319-96083-8_33",
language = "English",
isbn = "9783319960821",
series = "Advances in Intelligent Systems and Computing",
publisher = "Springer Verlag",
pages = "250--254",
editor = "Riccardo Tartaglia and Sara Albolino and Thomas Alexander and Sebastiano Bagnara and Yushi Fujita",
booktitle = "Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) - Volume III",
address = "Germany",
}