Human Factors Related to the Use of Personal Computer: A Case Study

  • Fabíola ReinertEmail author
  • Raoni Pontes Caselli
  • Antônio Renato Pereira Moro
  • Leila Amaral Gontijo
  • Marcelo Gitirana Gomes Ferreira
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 820)


The aim of this study was to determine and compare the ergonomic requirements in the use of desktop computers and laptops. For comparison, postures in the sagittal and transversal planes involved while performing a typing and editing task on a desktop and laptop computers were verified. Thus, a case study was conducted with a Brazilian male of medium height, who works around 20 h per week in a computer. Nine spherical markers of 2.5 cm in diameter were joined up with duct tape on the right side of the participant and the positions adopted by the subject were analyzed in the use of a desktop and a laptop computer, through direct observation and filming, using the videography technique. Among the most significant results, the use of desktop computers compared to laptops allows a more upright posture of the head and neck, as well as a more neutral posture of the shoulders, elbows and wrist. It is concluded that the use of desktop computers has lesser biomechanical demands since it showed angles closer to a neutral position and consequently having a lower risk of musculoskeletal complaints.


Postural angles Desktop computer Laptop computer 


  1. 1.
    Donoghue M, O’reilly D, Walsh M (2013) Whist postures in the general population of computer users during a computer task. Appl Ergon 44:42–47CrossRefGoogle Scholar
  2. 2.
    Aydeniz A, Gursoy S (2008) Upper extremy musculoskeletal disorders among computer users. Turk J Med Sci 38:235–238Google Scholar
  3. 3.
    Conlon CF, Rempel DM (2005) Upper extremity mononeuropathy among engineers. J Occup Environ Med 47:1276–1284CrossRefGoogle Scholar
  4. 4.
    Gold J, Driban J, Yingling V, Komaroff E (2012) Characterization of posture and comfort in laptop users non-desk settings. Appl Ergon 43:392–399CrossRefGoogle Scholar
  5. 5.
    Gerr F, Monteilh CP, Marcus M (2006) Keyboard use and musculoskeletal outcomes among computer users. J Occup Rehabil 13(3):265–277Google Scholar
  6. 6.
    Asundi K, Odell D, Luce A, Dennerlein J (2012) Chances in posture through the use of simple inclines with computers placed on standard desk. Appl Ergon 43:400–407CrossRefGoogle Scholar
  7. 7.
    Castellucci I, Benitez LZ (2011) Postura, disconfort y produtividad durante la ejecución de tareas de mecanografía en computadores personales portátiles tipo netbook, con y sin modificaciones ergonómicas. In: Proceedings of the 9th international conference on occupational risk prevention, ORP 2011, Santiago, pp 1–9Google Scholar
  8. 8.
    Jonai H, Villanueva M, Takata A, Sotoyama M, Saito S (2002) Effects of the liquid crystal display tilt angle of a notebook computer on posture, muscle activities and somatic complaints. Int J Ind Ergon 29:219–229CrossRefGoogle Scholar
  9. 9.
    Straker L, Jones KJ, Miller J (1997) A comparison of the postures assumed when using laptop computers and desktop computers. Appl Ergon 28(4):263–268CrossRefGoogle Scholar
  10. 10.
    Sommerich CM, Starr H, Smith CA, Shivers C (2002) Effects of notebook computer configuration and task on user biomechanics, productivity, and comfort. Int J Ind Ergon 30:7–31CrossRefGoogle Scholar
  11. 11.
    Seghers J, Jochem A, Spaepen A (2003) Posture, muscle activity and muscle fatigue in prolonged VTD work at different screen height settings. Ergonomics 46(7):714–730CrossRefGoogle Scholar
  12. 12.
    Iida I (2005) Ergonomia – Projeto e Produção. Edgar Blucher, São PauloGoogle Scholar
  13. 13.
    Chaffin DB, Andersson GB, Martin BJ (1999) Occupational biomechanics, 3rd edn. Wiley, New YorkGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Universidade Federal de Santa CatarinaFlorianópolisBrasil
  2. 2.Universidade Estadual de Santa CatarinaFlorianópolisBrasil

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