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The friction force mouse-pad and the forearm muscles efforts (preliminary results)

Author

Listed:
  • José Miquel Cabeças

    (IET, FCT-Universidade Nova de Lisboa)

  • Emanuel Santos Ribeiro

    (IET, FCT-Universidade Nova de Lisboa)

Abstract

The objective of the article is to evaluate the impact of the friction force mouse-pad in the contraction level of the forearm muscles M. extensor carpi ulnaris, M. extensor digitorum M. extensor carpi radialis longus.A standard protocol of mouse movements was performed involving horizontal, vertical and diagonal mouse displacements drag-and-drop type. The operators were instructed to execute the protocol with their normal working speed. The movements protocol were performed by each subject (n=17) with three selected pairs mouse-pad, classified as low, medium and high friction force pairs. The mean time to execute the protocol with each mouse was ~138s. Mean values of ~13%MVE and ~17%MVE were found in the M. extensor carpi ulnaris and in the M. extensor digitorum respectively when performing the movements’ protocol. A 8.1% increase in %MVE was observed in the M. extensor digitorum and a 9.4% increase in %MVE was observed in the M. extensor carpi ulnaris when the high friction force pair was operated, relatively to the low friction force pair (p

Suggested Citation

  • José Miquel Cabeças & Emanuel Santos Ribeiro, 2009. "The friction force mouse-pad and the forearm muscles efforts (preliminary results)," IET Working Papers Series 03/2009, Universidade Nova de Lisboa, IET/CICS.NOVA-Interdisciplinary Centre on Social Sciences, Faculty of Science and Technology.
    • Handle: RePEc:ieu:wpaper:12
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    File URL: http://run.unl.pt/handle/10362/1861
    File Function: First version, 2009
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    More about this item

    Keywords

    Computer mouse; Forearm muscles; EMG; Drag-and-drop; Friction force mouse-pad;
    All these keywords.

    JEL classification:

    • C89 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Other
    • I19 - Health, Education, and Welfare - - Health - - - Other
    • J81 - Labor and Demographic Economics - - Labor Standards - - - Working Conditions

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