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Masticatory muscle EMGs and their self-control under stress loading in a vertical space

Research Project

Project/Area Number 20592276
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Prosthetic dentistry
Research InstitutionMeikai University

Principal Investigator

FUJISAWA Masanori  Meikai University, 歯学部, 教授 (00209040)

Co-Investigator(Kenkyū-buntansha) IWASE Naoki  明海大学, 歯学部, 講師 (60245173)
TERADA Nobuyuki  東洋大学, 理工学部, 教授 (90155466)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsバーチャル空間 / 重心動揺 / 筋電図 / 咀嚼筋 / バイオフィードバック / クレンチング / 顎関節症 / ストレス / 認知行動療法 / セルフコントロール / 前脛骨筋 / ヒラメ筋
Research Abstract

It is known that there is a feedback-loop between the faculty of sight and posture control against gravity fluctuation (GF). However, the effect of masticatory muscle contraction on posture control is not well understood. We used 3-D motion pictures in a virtual space with GF, to examine changes in GF with different mandibular positions. Tooth contact positions included light clenching (LC) and mandibular rest position (RP).
Five male volunteer subjects (mean age of 22.4 years old) with no history of temporomandibular disorders (TMD) were recruited. Subjects included students at Meikai University. Electromyograms (EMGs) from both sides of the masseter, tibialis anterior (TA) and gastrocnemius muscles (GM) were recorded with an active electrode unit. Subjects were asked to stand on a GF sensor board in the virtual space. EMGs and GF were recorded during the display of a 3-D "roller coaster" animation (80sec duration). Alternation of LC and RP was performed by each subject. Prior to the experiments, all the subjects were trained to maintain 10% of maximum voluntary contraction as controlled LC under visual EMG feedback. They were then asked to maintain this position at the beginning of the LC experiment. No tooth contact was required during the RP session. Integrated EMG values were analyzed fromthe time point when the most significant postural change associated with the display occurred. The area of GF was also analyzed to determine the relationship between body balance and LC.
Except for R-GM, integrated EMG showed a significant increase under LC when compared with RP. The area of GF decreased significantly under LC when compared with RP which indicated well controlled body balance. Since tibialis anterior and gastrocnemius muscles were activated significantly more in regulating body balance under light clenching conditions than in the mandibular rest position, tooth contact could contribute to the postural regulation system.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (38 results)

All 2011 2010 2009 2008 Other

All Journal Article (16 results) (of which Peer Reviewed: 9 results) Presentation (21 results) Remarks (1 results)

  • [Journal Article] 下顎位の違いが3Dバーチャル空間における重心動揺に与える影響2011

    • Author(s)
      飯塚知明, 岩瀬直樹, 岡本和彦, 猪野照夫, 熊瀬名保子, 佐藤雅介, 秋元俊成, 寺田信幸, 藤澤政紀
    • Journal Title

      明海歯学 40(1)

      Pages: 39-44

    • NAID

      40018755305

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] 下顎位の違いが3Dバーチャル空間における重心動揺に与える影響2011

    • Author(s)
      飯塚知明、岩瀬直樹、寺田信幸、藤澤政紀, 他
    • Journal Title

      明海歯科医学

      Volume: 40 Pages: 39-44

    • NAID

      40018755305

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Electromyogram Biofeedback on Daytime Clenching Behavior in Subjects with Masticatory Muscle Pain2011

    • Author(s)
      Watanabe A., Kanemura K., Tanabe N., Fujisawa M.
    • Journal Title

      J Prosthodont Res

      Volume: 55 Pages: 75-81

    • NAID

      130004546606

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 顎関節症から学んだ補綴臨床の注意点-さまよえる患者を診る,知る、そしてつくらないために-2010

    • Author(s)
      藤澤政紀
    • Journal Title

      群馬県歯科医学会雑誌 14

      Pages: 31-36

    • Related Report
      2010 Final Research Report
  • [Journal Article] ストレスの関与が疑われた口腔悪習癖への対応2010

    • Author(s)
      金村清孝, 田邊憲昌, 浅野明子, 渡邉明, 石橋寛二
    • Journal Title

      日歯心身 25(1)

      Pages: 21-25

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] ブラキシズム現象の可視化2010

    • Author(s)
      渡邉明, 藤澤政紀, 金村清孝, 田邊憲昌, 石橋寛二, 岩瀬直樹, 飯塚知明, 佐藤雅介
    • Journal Title

      可視化情報 30(1)

      Pages: 151-156

    • Related Report
      2010 Final Research Report
  • [Journal Article] 歯学部学生におけるライフスコアと顎機能障害の関係2010

    • Author(s)
      浅野明子, 田邊憲昌, 金村清孝, 武部純, 藤澤政紀, 石橋寛二
    • Journal Title

      日歯教誌 26(2)

      Pages: 189-199

    • NAID

      10026612296

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] 開口可能な顎位の維持により関節円板の整位が生じた間欠性ロックの1症例2010

    • Author(s)
      金村清孝, 田邊憲昌, 藤澤政紀, 東海林理, 石橋寛二
    • Journal Title

      日顎誌 22(2)

      Pages: 79-83

    • NAID

      10026596228

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] ブラキシズムの可視化2010

    • Author(s)
      渡邉明, 藤澤政紀, 岩瀬直樹, 他
    • Journal Title

      日本可視化情報学会

      Volume: 30 Pages: 151-156

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 顎機能障害の診断と発症原因を考慮に入れた治療-発症原因をコホート調査から紐解く-2009

    • Author(s)
      藤澤政紀
    • Journal Title

      日補綴会誌 1(1)

      Pages: 1-6

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] 顎機能障害の寄与因子を考察する2009

    • Author(s)
      藤澤政紀
    • Journal Title

      歯科技工 37(3)

      Pages: 325-346

    • Related Report
      2010 Final Research Report
  • [Journal Article] 実は危ない!安易な補綴介入が招く歯科心身症の重篤化2009

    • Author(s)
      藤澤政紀, 石橋寛二
    • Journal Title

      歯科医展望 113(6)

      Pages: 1130-1133

    • Related Report
      2010 Final Research Report
  • [Journal Article] 顎関飾症のスプリント治療に関する実態調査-大学病院および一般開業歯科医院における診療時間の比較-2009

    • Author(s)
      兒玉直紀, 築山能大, 藤澤政紀, 皆木省吾, 他
    • Journal Title

      日本顎関節学会誌 21

      Pages: 222-227

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 顎機能障害の診断と発症原因を考慮に入れた治療-発症原因をコホー卜調査から紐解く-2009

    • Author(s)
      藤澤政紀
    • Journal Title

      日補綴会誌 1

      Pages: 1-6

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 若年者における顎関節症発症と心理特性に関する2.5年間の前向きコホート調査2008

    • Author(s)
      浅野明子、田邉憲昌、藤澤政紀
    • Journal Title

      日顎誌 20(2)

      Pages: 166-173

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] デリケートな咬合に対する補綴的対策2008

    • Author(s)
      藤澤政紀
    • Journal Title

      新歯界 10月号No678

      Pages: 16-18

    • Related Report
      2010 Final Research Report
  • [Presentation] Effect of EMG-Biofeedback on Daytime Clenching Behavior in TMD Subjects2010

    • Author(s)
      Fujisawa M, Watanabe A, Iwase N, et.al
    • Organizer
      88th General Session & Exhibition of the IADR
    • Place of Presentation
      Barcelona(スペイン)
    • Year and Date
      2010-07-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] 日中に生じるクレンチングは心理的要因に影響を受ける2010

    • Author(s)
      遠藤寛, 金村清孝, 田邉憲昌, 渡邉明, 石橋寛二
    • Organizer
      日本歯科補綴学会第119回学術大会
    • Place of Presentation
      東京
    • Related Report
      2010 Final Research Report
  • [Presentation] バスケットボール競技中と日常生活環境下における咬筋筋活動の比較2010

    • Author(s)
      山田優貴, 遠藤寛, 金井佐知子, 金村清孝, 田邉憲昌, 渡邉明, 藤澤政紀, 石橋寛二
    • Organizer
      第21回日本スポーツ歯科医学会学術大会
    • Place of Presentation
      福岡
    • Related Report
      2010 Final Research Report
  • [Presentation] The relationship between bruxism during daytime and sleep.2010

    • Author(s)
      T. Iizuka, M.Sato, T. Ino, M.Fujisawa
    • Organizer
      88th General Session & Exhibition of the IADR
    • Place of Presentation
      Barcelona
    • Related Report
      2010 Final Research Report
  • [Presentation] Scoring parafunctional EMG events by excluding functional activity.2010

    • Author(s)
      M.Sato, T.Iizuka, K. Okamoto, M.Fujisawa
    • Organizer
      88th General Session & Exhibition of the IADR
    • Place of Presentation
      Barcelona
    • Related Report
      2010 Final Research Report
  • [Presentation] Effect of EMG-Biofeedback on Daytime Clenching Behavior in TMD Subjects.2010

    • Author(s)
      藤澤政紀, 渡邉明, 金村清孝, 田邊憲昌, 飯塚知明, 佐藤雅介, 岩瀬直樹, 石橋寛二
    • Organizer
      88th General Session & Exhibition of the IADR
    • Place of Presentation
      Barcelona
    • Related Report
      2010 Final Research Report
  • [Presentation] ブラキシズム現象の可視化2010

    • Author(s)
      渡邉明, 藤澤政紀, 金村清孝, 田邊憲昌, 石橋寛二, 岩瀬直樹, 飯塚知明, 佐藤雅介
    • Organizer
      第38回日本可視化情報学会シンポジウム
    • Place of Presentation
      東京
    • Related Report
      2010 Final Research Report
  • [Presentation] 咀嚼筋筋電図バイオフィードバック(EMG-BF)訓練による日中のクレンチング抑制効果-1ヶ月後における学習効果の検討-2010

    • Author(s)
      渡邉明, 藤澤政紀, 金村清孝, 田邉憲昌, 飯塚知明, 佐藤雅介, 岩瀬直樹, 石橋寛二
    • Organizer
      第45回日本顎口腔機能学会学術大会
    • Place of Presentation
      川越
    • Related Report
      2010 Final Research Report
  • [Presentation] Daytime clenching determination and regulation utilized by a newly developed portable electromyogram biofeedback system.2009

    • Author(s)
      Fujisawa M, Gohdo Y, Watanabe A, Kanemura K, Tanabe N, Iizuka T, Iwase N, Satoh G, Ishibashi K.
    • Organizer
      第13回国際歯科補綴学会(ICP)
    • Place of Presentation
      Cape Town
    • Year and Date
      2009-09-11
    • Related Report
      2010 Final Research Report
  • [Presentation] Effect of tooth control on posture control in the 3-D virtual space.2009

    • Author(s)
      Iizuka T, Iwase N, Fujisawa M, Akimoto T, Terada N.
    • Organizer
      第13回国際歯科補綴学会(ICP)
    • Place of Presentation
      Cape Town
    • Year and Date
      2009-09-11
    • Related Report
      2010 Final Research Report
  • [Presentation] Daytime clenching determination and regulation utilized by a newly developed portable electromyogram biofeedback system2009

    • Author(s)
      Fujisawa M, Iizuka T, Iwase N, Satoh G, Ishibashi K, et al
    • Organizer
      第13回国際歯科補綴学会(ICP)
    • Place of Presentation
      Cape Town(南アフリカ)
    • Year and Date
      2009-09-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] Effect of tooth control on posture control in the 3-D virtual space2009

    • Author(s)
      飯塚知明, 岩瀬直樹, 藤澤政紀, 秋元俊成, 寺田信幸
    • Organizer
      第13回国際歯科補綴学会(ICP)
    • Place of Presentation
      Cape Town(南アフリカ)
    • Year and Date
      2009-09-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] バーチャル空間内での下顎位の違いが前脛骨筋とヒラメ筋の筋活動に及ぼす影響について2009

    • Author(s)
      岩瀬直樹, 飯塚知明, 藤澤政紀, 秋元俊成, 寺田信幸, 他
    • Organizer
      第118回日本補綴歯科学会学術大会
    • Place of Presentation
      京都
    • Year and Date
      2009-06-06
    • Related Report
      2009 Annual Research Report
  • [Presentation] 顎機能障害発症の寄与因子に関する主成分分析-5年間のコホート研究から-2009

    • Author(s)
      田邉憲昌, 金村清孝, 浅野明子, 今村博高, 齋藤章人, 金井佐知子, 森岡範之, 藤澤政紀, 石橋寛二
    • Organizer
      第118回日本補綴歯科学会学術大会
    • Place of Presentation
      京都
    • Related Report
      2010 Final Research Report
  • [Presentation] 咀嚼筋痛を伴うクレンチング習癖者に対するEMGバイオフィードバック訓練の効果2009

    • Author(s)
      渡邉明、金村清孝、田邉憲昌、遠藤寛、藤澤政紀、石橋寛二
    • Organizer
      第22回日本顎関節学会総会・学術大会
    • Place of Presentation
      東京
    • Related Report
      2010 Final Research Report
  • [Presentation] 小型筋電計を用いた無拘束の測定システムによるバスケットボール競技中の咬筋筋活動解析2009

    • Author(s)
      遠藤寛, 渡邉明, 金村清孝, 田邉憲昌, 藤澤政紀, 石橋寛二
    • Organizer
      第20回日本スポーツ歯科医学会総会・学術大会
    • Place of Presentation
      大宮
    • Related Report
      2010 Final Research Report
  • [Presentation] 顎機能障害に関する10年間の前向きコホート調査2009

    • Author(s)
      金井佐知子, 田邉憲昌, 金村清孝, 浅野明子, 齊藤章人, 藤澤政紀, 石橋寛二
    • Organizer
      平成21年度日本補綴歯科学会東北・北海道支部総会・学術大会
    • Place of Presentation
      盛岡
    • Related Report
      2010 Final Research Report
  • [Presentation] 咀嚼筋痛を伴うクレンチング習癖者に対するEMGバイオフィードバック訓練2008

    • Author(s)
      渡渡邉明、金村清孝、田邉憲昌、藤澤政紀、石橋寛二
    • Organizer
      第21回日本顎関節学会総会・学術大会
    • Place of Presentation
      大阪
    • Year and Date
      2008-07-26
    • Related Report
      2010 Final Research Report
  • [Presentation] 咀嚼筋痛を伴うクレンチング習癖者に対するEMGバイオフィードバック訓練2008

    • Author(s)
      渡邉明, 金村清孝, 田邊憲昌, 藤澤政紀, 石橋寛二
    • Organizer
      第21回日本顎関節学会総会・学術大会
    • Place of Presentation
      リーガロイヤルホテル大阪
    • Year and Date
      2008-07-26
    • Related Report
      2008 Annual Research Report
  • [Presentation] 顎機能障害の寄与因子に関する5年間の前向きコホート調査2008

    • Author(s)
      田邉憲昌, 金村清孝, 今村博高, 斎藤章人, 遠藤寛, 浅野明子, 高瀬真二, 川田毅, 藤澤政紀, 石橋寛二
    • Organizer
      第117回日本補綴歯科学会学術大会
    • Place of Presentation
      名古屋
    • Year and Date
      2008-06-07
    • Related Report
      2010 Final Research Report
  • [Presentation] 歯学部学生におけるライフスコアと顎機能障害の関係2008

    • Author(s)
      浅野明子、田邉憲昌、金村清孝、金井佐知子、藤澤政紀、石橋寛二
    • Organizer
      平成20年度日本補綴歯科学会東北・北海道支部総会・学術大会
    • Related Report
      2010 Final Research Report
  • [Remarks] ホームページ等

    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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