Reliability of EMG activity in complete denture users during simulation of activities of daily living

Authors

  • Simone Michelon Baldisserotto
  • Dúcia Caldas Cosme da Trindade UFPB
  • Jefferson Fagundes Loss UFRGS
  • Rosemary Sadami Arai Shinkai PUCRS

Keywords:

Electromyography, complete dentures, activities of daily living

Abstract

Purpose: To describe a kinesiologic EMG method and determine the reliability of EMG activity of representative muscles of mastication (temporal, masseter), posture of neck (sternocleidomastoid, trapezius) and trunk (rectus abdominis, paravertebral), and lower extremity strength (rectus femoris, medial gastrocnemius) during simulation of activities of daily living. Methods: Ten edentulous healthy women (age: 58.2±5.6 yr old) were tested with and without their dentures. EMG signals were recorded for each subject during three trials of each kinesiologic test: to stand up/sit down on a chair (TC), to rise/lie down in the bed (TB), and to lift/lower bags (TW). The same-day reprodutibility of the EMG values was estimated by test-retest reliability analyses. For each test (TC, TB, and TW) the intraclass correlation coefficient (ICC) and 95% confidence interval were estimated stratified by muscle, presence or not of complete dentures, and movement during the test (up and down) considering the three repetitions per subject to assess consistency. Results: All muscles showed activation during the tests. The method yielded moderate to high ICCs; the highest test-retest reliability levels were estimated for the sternocleidomastoid (0.82-0.97) and paravertebral (0.86-0.99) muscles. Conclusion: These findings suggest that the described kinesiologic EMG method showed satisfactory reliability in this sample.

Author Biographies

Simone Michelon Baldisserotto

Private practice

Dúcia Caldas Cosme da Trindade, UFPB

Department of Prosthodontics Federal University of Paraíba (UFPB) João Pessoa, PB, Brazil

Jefferson Fagundes Loss, UFRGS

Professor Department of Physical Education, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil

Rosemary Sadami Arai Shinkai, PUCRS

Departamento de Prótese Dentária. Programa de Pós-Graduação em Odontologia. PUCRS

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Published

2009-08-26

Issue

Vol. 25 No. 1 (2010)

Section

Original Article

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