Sabarinath Prasad1, Michael Paulin2, Richard D Cannon1, Sandro Palla3, Mauro Farella4. 1. Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand. 2. Department of Zoology, University of Otago, Dunedin, New Zealand. 3. University of Zürich, Zürich, Switzerland. 4. Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand. mauro.farella@otago.ac.nz.
Abstract
OBJECTIVES: To test a smartphone-assisted wireless device for assessing electromyographic (EMG) activity of the masseter muscle in freely moving individuals undertaking routine activities. MATERIALS AND METHODS: EMG activity was detected unilaterally from the masseter muscle in 12 volunteers using surface electrodes connected to both a smartphone-assisted wireless EMG device and a fixed-wired EMG equipment (reference standard). After performing a series of standardized tasks in the laboratory, participants wore the wireless device for 8 h while performing their normal routine. RESULTS: The wireless device reliably detected masseter muscle contraction episodes under both laboratory and natural environment conditions. The intraclass correlation coefficients for the muscle contraction episode amplitude and duration detected by the wireless and the wired equipment ranged from 0.94-1.00 to 0.82-1.00, respectively. Most masseter contraction episodes during normal routine were of low amplitude (< 10% MVC) and short duration (< 10 s), with no significant differences between sexes or facial side. CONCLUSIONS: Within the limitations of the study, smartphone-assisted monitoring of the jaw muscles represents a promising tool to investigate oral behavior patterns in free moving individuals. CLINICAL RELEVANCE: Smartphone-assisted monitoring of masticatory muscle activity may enable possible associations between excessive muscle activity, bruxism, dysfunction, and pain to be investigated, and managed via biofeedback.
OBJECTIVES: To test a smartphone-assisted wireless device for assessing electromyographic (EMG) activity of the masseter muscle in freely moving individuals undertaking routine activities. MATERIALS AND METHODS: EMG activity was detected unilaterally from the masseter muscle in 12 volunteers using surface electrodes connected to both a smartphone-assisted wireless EMG device and a fixed-wired EMG equipment (reference standard). After performing a series of standardized tasks in the laboratory, participants wore the wireless device for 8 h while performing their normal routine. RESULTS: The wireless device reliably detected masseter muscle contraction episodes under both laboratory and natural environment conditions. The intraclass correlation coefficients for the muscle contraction episode amplitude and duration detected by the wireless and the wired equipment ranged from 0.94-1.00 to 0.82-1.00, respectively. Most masseter contraction episodes during normal routine were of low amplitude (< 10% MVC) and short duration (< 10 s), with no significant differences between sexes or facial side. CONCLUSIONS: Within the limitations of the study, smartphone-assisted monitoring of the jaw muscles represents a promising tool to investigate oral behavior patterns in free moving individuals. CLINICAL RELEVANCE: Smartphone-assisted monitoring of masticatory muscle activity may enable possible associations between excessive muscle activity, bruxism, dysfunction, and pain to be investigated, and managed via biofeedback.
Entities:
Keywords:
Bruxism; Electromyography; Masticatory muscles; Smartphone; Tooth clenching; Wearable electronic device; Wireless body area network
Authors: Carlos A Tavera; Jesús H Ortiz; Osamah I Khalaf; Diego F Saavedra; Theyazn H H Aldhyani Journal: Comput Math Methods Med Date: 2021-04-24 Impact factor: 2.238
Authors: Magdalini Thymi; Frank Lobbezoo; Ghizlane Aarab; Jari Ahlberg; Kazuyoshi Baba; Maria Clotilde Carra; Luigi M Gallo; Antoon De Laat; Daniele Manfredini; Gilles Lavigne; Peter Svensson Journal: J Oral Rehabil Date: 2021-05-02 Impact factor: 3.558