Electromyography of the Upper Limbs During Computer Work: A Comparison of 2 Wrist Orthoses in Healthy Adults Iracema Serrat Vergotti Ferrigno, PhD, OT,

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Electromyography of the Upper Limbs During Computer Work: A Comparison of 2 Wrist Orthoses in Healthy Adults Iracema Serrat Vergotti Ferrigno, PhD, OT, Alberto Cliquet, PhD, Luis Alberto Magna, PhD, Américo Zoppi Filho, PhD Archives of Physical Medicine and Rehabilitation Volume 90, Issue 7, Pages 1152-1158 (July 2009) DOI: 10.1016/j.apmr.2009.01.016 Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 1 Orthoses: (A) custom-made orthosis; (B) commercial orthosis. Archives of Physical Medicine and Rehabilitation 2009 90, 1152-1158DOI: (10.1016/j.apmr.2009.01.016) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 2 Example of raw EMG signals obtained during the 4 consecutive contractions to obtain maximal voluntary contraction. Archives of Physical Medicine and Rehabilitation 2009 90, 1152-1158DOI: (10.1016/j.apmr.2009.01.016) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 3 Recording of EMG signals in root mean square of the trapezius obtained during the typing task. Archives of Physical Medicine and Rehabilitation 2009 90, 1152-1158DOI: (10.1016/j.apmr.2009.01.016) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 4 Representation of the electric activity amplitude of the trapezius during typing and mouse use without orthosis, N; with orthosis A; and with orthosis B. Archives of Physical Medicine and Rehabilitation 2009 90, 1152-1158DOI: (10.1016/j.apmr.2009.01.016) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 5 Representation of the electric activity amplitude of the flexor digitorum superficialis, during typing and mouse usage without orthosis, N; with orthosis A and with orthosis B. Archives of Physical Medicine and Rehabilitation 2009 90, 1152-1158DOI: (10.1016/j.apmr.2009.01.016) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 6 Representation of the electric activity amplitude of the extensor carpi ulnaris during typing and mouse usage without orthosis, N; with orthosis, A; and with orthosis, B. Archives of Physical Medicine and Rehabilitation 2009 90, 1152-1158DOI: (10.1016/j.apmr.2009.01.016) Copyright © 2009 American Congress of Rehabilitation Medicine Terms and Conditions