Effects of brain activity on the reflex excitability during conditioning tasks in which the spinal reflex would be facilitated or inhibited voluntarily

• Project/Area Number: 24650365
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical education
• Research Institution: Doshisha University (2013-2014); University of Tsukuba (2012)
• Principal Investigator: KAMIBAYASHI Kiyotaka 同志社大学, スポーツ健康科学部, 准教授 (70415363)
• Co-Investigator(Kenkyū-buntansha): MATSUSHITA Akira 筑波大学, サイバニクス研究コア, 助教 (50832481) ; 松下 明 筑波大学, サイバニクス研究コア, 助教 (80532481)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 脊髄反射 / H反射 / tDCS / 神経科学 / 運動制御

Outline of Final Research Achievements

The purpose of this study was to investigate changes of the Hoffmann reflex (H-reflex) excitability in the soleus and tibialis anterior muscles during a task in which subjects tried to facilitate or inhibit the H-reflex excitability voluntarily. In addition, the effect of cortical excitability on the changes of H-reflex excitability was investigated by using transcranial direct current stimulation (tDCS). The changes of the H-reflex excitability in the soleus muscle were observed in response to the given instruction of facilitation or inhibition. Although the excitability of the corticospinal tract increased by anodal stimulation of tDCS on the motor cortex, the cortical stimulation on voluntary control of the H-reflex excitability was less effective.

Research Products

• [Journal Article] Velocity-dependent H-reflex suppression of the soleus muscle during robot-assisted passive stepping. (2015)
  • Author(s): Yohei Masugi, Taku Kitamura, Kiyotaka Kamibayashi, Tetsuya Ogawa, Toru Ogata, Noritaka Kawashima, Kimitaka Nakazawa
  • Journal Title: Neuroscience Letters Volume: 584 Pages: 337-341
  • DOI: 10.1016/j.neulet.2014.10.044
  • Peer Reviewed
• [Journal Article] Locomotor training using a wearable robot in patients with neurological disorders (2014)
  • Author(s): Kamibayashi K
  • Journal Title: The Journal of Physical Fitness and Sports Medicine Volume: 3 Issue: 2 Pages: 249-253
  • DOI: 10.7600/jpfsm.3.249
  • NAID: 130004626104
  • ISSN: 2186-8123, 2186-8131
  • Open Access
• [Journal Article] Aftereffects of robotic-assisted treadmill walking on the locomotor pattern in humans (2012)
  • Author(s): Kamibayashi K, Kawamoto H, Sankai Y
  • Journal Title: Conf Proc IEEE Eng Med Biol Soc Volume: 2012 Pages: 3560-3563
  • DOI: 10.1109/embc.2012.6346735
  • Peer Reviewed
• [Presentation] Effect of stepping velocity on the soleus H-reflex during robotically guided passive stepping in human. (2014)
  • Author(s): Masugi Y, Kitamura T, Kamibayashi K, Ogawa T, Kawashima N, Ogata T, Nakazawa K
  • Organizer: 8th World Congress for NeuroRehabilitation
  • Place of Presentation: Istanbul (Turkey)
  • Year and Date: 2014-04-11
• [Presentation] 歩行アシストロボットを用いた基礎研究とリハビリテーション
  • Author(s): 上林清孝
  • Organizer: 第160回日本体力医学会関東地方会
  • Place of Presentation: 東京慈恵会医科大学（東京都調布市）
  • Invited
• [Presentation] Muscle activity in the lower limb during robot-assistive walking training using the Hybrid Assistive Limb
  • Author(s): Irie S, Kamibayashi K, Eguchi K, Kubota S, Ariyasu R, Ueno Y, Kawamoto H, Matsuhista A, Kadone H, Nakata Y, Sankai Y, Sakane M
  • Organizer: Neuroscience 2013
  • Place of Presentation: San Diego Convention Center (San Diego, USA)
• [Presentation] ヒト歩行時の体性感覚入力による皮質脊髄路および脊髄反射の興奮性変化
  • Author(s): 上林清孝
  • Organizer: 第198回つくばブレインサイエンスセミナー
  • Place of Presentation: 筑波大学（茨城県）
  • Invited
• [Presentation] 歩行支援ロボットを用いた脊髄損傷患者のニューロリハビリテーション
  • Author(s): 上林清孝
  • Organizer: 第75回ロボット工学セミナー
  • Place of Presentation: 中央大学（東京都）
  • Invited
• [Presentation] 歩行時の体性感覚が皮質脊髄路興奮性に与える影響
  • Author(s): 上林清孝
  • Organizer: 日本健康行動科学会第11回学術大会
  • Place of Presentation: 東京工科大学（東京都）
  • Invited
• [Presentation] Aftereffects of robotic-assisted treadmill walking on the locomotor pattern in humans
  • Author(s): Kamibayashi K, Kawamoto H, Sankai Y
  • Organizer: 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC2012)
  • Place of Presentation: San Diego (USA)
• [Book] 「Motor control and learning」, Cybernics: Fusion of human, machine and information (2013)
  • Author(s): Kamibayashi K
  • Publisher: Springer