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Volume 90, Issue 7 , Pages 1152-1158 , July 2009

Electromyography of the Upper Limbs During Computer Work: A Comparison of 2 Wrist Orthoses in Healthy Adults

Iracema Serrat Vergotti Ferrigno, PhD, OT
- Department of Orthopedics and Traumatology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
- Department of Occupational Therapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil
- Reprint requests to Iracema Serrat Vergotti Ferrigno, PhD, OT, Rua Croata, No 451 Ap 102, São Paulo, SP, Brazil, 05056-020
Alberto Cliquet Jr, PhD
- Department of Orthopedics and Traumatology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
Luis Alberto Magna, PhD
- Department of Medical Genetics, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
Américo Zoppi Filho, PhD
- Department of Orthopedics and Traumatology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil

Orthoses: (A) custom-made orthosis; (B) commercial orthosis.

Orthoses: (A) custom-made orthosis; (B) commercial orthosis.
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Example of raw EMG signals obtained during the 4 consecutive contractions to obtain maximal voluntary contraction.

Example of raw EMG signals obtained during the 4 consecutive contractions to obtain maximal voluntary contraction.
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Recording of EMG signals in root mean square of the trapezius obtained during the typing task.

Recording of EMG signals in root mean square of the trapezius obtained during the typing task.
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Representation of the electric activity amplitude of the trapezius during typing and mouse use without orthosis, N; with orthosis A; and with orthosis B.

Representation of the electric activity amplitude of the trapezius during typing and mouse use without orthosis, N; with orthosis A; and with orthosis B.
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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.

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.
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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.

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.
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No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit on the authors or on any organization with which the authors are associated.

PII: S0003-9993(09)00213-5

doi: 10.1016/j.apmr.2009.01.016

« Previous Next » Archives of Physical Medicine and Rehabilitation
Volume 90, Issue 7 , Pages 1152-1158 , July 2009