Biomechanical ergonomic evaluation of handwriting performance in left-handed students when using writing armchair

Muhammad Rasyad, Erlinda Muslim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Since ninety percent of the human population in the world are right-handed, many products and facilities are designed for right-handed people. In Indonesia, writing armchair with desktop fixed at the right side is a common product used at tertiary education level, which is uncomfortable for left-handed students because they have to tilt their bodies awkwardly to the right side. Inadequate facilities of left-sided writing armchair in educational institutions are caused by the unknown difference impact on the handwriting performance of left-handed students when using both types of writing armchairs. The purpose of this research is to find out the handwriting performance differences of left-handed students based on biomechanical ergonomic factors. Thirty left-handed university students, aged 18-23 years, participated in this research to conduct 30-minute handwriting experiments using left-sided and right-sided writing armchair. Four measurements parameter used were electromyography (to measure muscle activity objectively), self-perceived soreness (to measure muscle activity subjectively), writing speed (to measure handwriting efficiency), and posture evaluation index (to measure body posture). The results showed that left-handed students significantly performed better handwriting performance on left-sided writing armchair in all four measurements. When using the right-sided writing armchair, there was pain felt in the upper body. Therefore, it is highly recommended for educational institutions to provide special writing armchair for left-handed students that is accessible and flexible to be used.

Original languageEnglish
Title of host publication4th Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, Health, and Medical Devices
Subtitle of host publicationProceedings of the International Symposium of Biomedical Engineering, ISBE 2019
EditorsKenny Lischer, Tomy Abuzairi, Siti Fauziyah Rahman, Misri Gozan
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419445
DOIs
Publication statusPublished - 10 Dec 2019
Event4th International Symposium of Biomedical Engineering�s Recent Progress in Biomaterials, Drugs Development, Health, and Medical Devices, ISBE 2019 - Padang, West Sumatera, Indonesia
Duration: 22 Jul 201924 Jul 2019

Publication series

NameAIP Conference Proceedings
Volume2193
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Symposium of Biomedical Engineering�s Recent Progress in Biomaterials, Drugs Development, Health, and Medical Devices, ISBE 2019
Country/TerritoryIndonesia
CityPadang, West Sumatera
Period22/07/1924/07/19

Keywords

  • biomechanical ergonomic
  • handwriting
  • left-handed
  • muscle activity
  • writing armchair

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