Association of masticatory muscle activity with sleep arousal and other concomitant movements during sleep

Haruna Miki, Hajime Minakuchi, Mayu Miyagi, Emilio Satoshi Hara, Shuji Shigemoto, Yoshitaka Suzuki, Kenji Maekawa, Yoshizo Matsuka, Glenn T. Clark, Takuo Kuboki

Research output: Contribution to journalArticle

Abstract

Objective: This study aims to verify the associations among sleep bruxism (SB), sleep arousal (SA) and concurrent body movements. Material and Methods: Subjects underwent a standard overnight polysomnography test and audio-video recordings. Sleep quality was evaluated according to the Rechtschaffen and Kales criteria, while SA was determined as per the American Sleep Disorders Association criteria. Analyses were performed by an external institution after masking of the subjects' information. SB was assessed based on the presence/absence of rhythmic masticatory muscle activity (RMMA) episodes, which were identified by using electromyography of the masseter muscle. The observed simultaneous movements included lower leg movement (LLM), swallowing, face scratching, head movement, body movement, eye blinking, coughing, licking, sighing, body scratching, lip sucking, somniloquy and yawning. The LLM was determined visually, as well as through an increase in the tibialis electromyogram signal. Other movements were visually assessed using audio-video recordings. The incidences of all the simultaneous movements were compared between RMMA with intercurrent SA (SAwRMMA; RMMA episode derived from a masseter electromyogram showing more than 10% of maximum voluntary contraction) and SA without RMMA (SAw/oRMMA). Results: Fourteen subjects were included in this study (females/males: 4/10, mean age: 31.5 ± 5.7 years). Among these, LLM, swallowing, body movement, licking, body scratching and lip sucking were frequently observed in SAwRMMA episodes than in SAw/oRMMA episodes, significantly. However, the non-specific simultaneous movements were higher observed in SAw/oRMMA episodes than that in SAwRMMA. Conclusion: Our results suggest that SB is concurrently activated with LLM in relation to arousal.

Original languageEnglish
JournalJournal of oral rehabilitation
DOIs
Publication statusAccepted/In press - Jan 1 2019

Fingerprint

Masticatory Muscles
Arousal
Sleep Bruxism
Sleep
Leg
Electromyography
Video Recording
Deglutition
Lip
Yawning
Masseter Muscle
Blinking
Head Movements
Polysomnography
Brassica
Eye Movements
Incidence

Keywords

  • concomitant movement
  • non-specific simultaneous movements
  • polysomnography assessment
  • rhythmic masticatory muscle activity
  • sleep arousal
  • sleep bruxism

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Association of masticatory muscle activity with sleep arousal and other concomitant movements during sleep. / Miki, Haruna; Minakuchi, Hajime; Miyagi, Mayu; Hara, Emilio Satoshi; Shigemoto, Shuji; Suzuki, Yoshitaka; Maekawa, Kenji; Matsuka, Yoshizo; Clark, Glenn T.; Kuboki, Takuo.

In: Journal of oral rehabilitation, 01.01.2019.

Research output: Contribution to journalArticle

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abstract = "Objective: This study aims to verify the associations among sleep bruxism (SB), sleep arousal (SA) and concurrent body movements. Material and Methods: Subjects underwent a standard overnight polysomnography test and audio-video recordings. Sleep quality was evaluated according to the Rechtschaffen and Kales criteria, while SA was determined as per the American Sleep Disorders Association criteria. Analyses were performed by an external institution after masking of the subjects' information. SB was assessed based on the presence/absence of rhythmic masticatory muscle activity (RMMA) episodes, which were identified by using electromyography of the masseter muscle. The observed simultaneous movements included lower leg movement (LLM), swallowing, face scratching, head movement, body movement, eye blinking, coughing, licking, sighing, body scratching, lip sucking, somniloquy and yawning. The LLM was determined visually, as well as through an increase in the tibialis electromyogram signal. Other movements were visually assessed using audio-video recordings. The incidences of all the simultaneous movements were compared between RMMA with intercurrent SA (SAwRMMA; RMMA episode derived from a masseter electromyogram showing more than 10{\%} of maximum voluntary contraction) and SA without RMMA (SAw/oRMMA). Results: Fourteen subjects were included in this study (females/males: 4/10, mean age: 31.5 ± 5.7 years). Among these, LLM, swallowing, body movement, licking, body scratching and lip sucking were frequently observed in SAwRMMA episodes than in SAw/oRMMA episodes, significantly. However, the non-specific simultaneous movements were higher observed in SAw/oRMMA episodes than that in SAwRMMA. Conclusion: Our results suggest that SB is concurrently activated with LLM in relation to arousal.",
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author = "Haruna Miki and Hajime Minakuchi and Mayu Miyagi and Hara, {Emilio Satoshi} and Shuji Shigemoto and Yoshitaka Suzuki and Kenji Maekawa and Yoshizo Matsuka and Clark, {Glenn T.} and Takuo Kuboki",
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AU - Miki, Haruna

AU - Minakuchi, Hajime

AU - Miyagi, Mayu

AU - Hara, Emilio Satoshi

AU - Shigemoto, Shuji

AU - Suzuki, Yoshitaka

AU - Maekawa, Kenji

AU - Matsuka, Yoshizo

AU - Clark, Glenn T.

AU - Kuboki, Takuo

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KW - non-specific simultaneous movements

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KW - sleep arousal

KW - sleep bruxism

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