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Affiliation |
Engineering educational research section Mechanical Intelligence Engineering Program |
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Title |
Associate Professor |
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External Link |
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YAMAKO Go
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Degree 【 display / non-display 】
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Doctor (Engineering) ( 2007.3 Niigata University )
Research Areas 【 display / non-display 】
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Life Science / Biomedical engineering
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Design engineering
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials
Papers 【 display / non-display 】
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Thinner femoral cortical thickness in patients with destructive rheumatoid arthritis of the knee Reviewed
Kakutani R, Kondo N, Yamako G, Mochizuki T, Someya K, Kawashima H
Journal of Orthopaedic Surgery and Research 18 ( 1 ) 850 2023.11
Language：English Publishing type：Research paper (scientific journal)
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Weight-shifting-based robot control system improves the weight-bearing rate and balance ability of the static standing position in hip osteoarthritis patients: A randomized controlled trial focusing on outcomes after total hip arthroplasty Reviewed
Miyazaki S, Yamako G, Arakawa H, T sakamoto, T kawaguchi, K Ito, Chosa E
PeerJ 11 e15397 2023.5
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)
DOI： 10.7717/peerj.15397.
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Evaluation of Sit-to-stand Movement in Older Adults with Locomotive Syndrome using the Nintendo Wii Balance Board Reviewed
Yamako G, Punchihewa NG, Arakawa H, Tajima T, Chosa E
Sensors 23 ( 7 ) 3368 2023.3
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
DOI： 10.3390/s23073368
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Yamako G., Ito K., Muraoka T., Chosa E.
International Journal of Environmental Research and Public Health 20 ( 2 ) 2023.1
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：International Journal of Environmental Research and Public Health
A novel and fun exercise robot (LOCOBOT) was developed to improve balance ability. This system can control a spherical robot on a floor by changing the center of pressure (COP) based on weight-shifting on a board. The present study evaluated leg muscle activity and joint motion during LOCOBOT exercise and compared the muscle activity with walking and sit-to-stand movement. This study included 10 healthy male adults (age: 23.0 ± 0.9 years) and examined basic LOCOBOT exercises (front–back, left–right, 8-turn, and bowling). Electromyography during each exercise recorded 13 right leg muscle activities. Muscle activity was represented as the percentage maximal voluntary isometric contraction (%MVIC). Additionally, the joint motion was simultaneously measured using an optical motion capture system. The mean %MVIC differed among LOCOBOT exercises, especially in ankle joint muscles. The ankle joint was primarily used for robot control. The mean %MVIC of the 8-turn exercise was equivalent to that of walking in the tibialis anterior, and the ankle plantar flexors were significantly higher than those in the sit-to-stand motion. Participants control the robot by ankle strategy. This robot exercise can efficiently train the ankle joint muscles, which would improve ankle joint stability.
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Development of a video camera-type kayak motion capture system to measure water kayaking Reviewed
Miyazaki S, Yamako G, Kimura R, Punchihewa NG, Kawaguchi T, Arakawa H, Chosa E
PeerJ 2023
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)
Books 【 display / non-display 】
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Handbook of Functionally Graded Materials
（ Role： Contributor）
2024.2
Book type：Scholarly book
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関節外科（特集 運動器を扱うメディカルスタッフのためのバイオメカニクス必携）
企画・編集：帖佐 悦男（ Role： Joint author）
メジカルビュー社 2016.11
Responsible for pages：94-99 Language：Japanese Book type：Scholarly book
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未来型人工関節を目指して －その歴史から将来展望まで―
吉川秀樹, 他（ Role： Joint author , pp.181-186）
日本医学館 2013.7
Language：Japanese Book type：Scholarly book
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整形・災害外科 （特集 骨・関節のバイオメカニクス –最近の進歩）
企画：黒坂昌弘（ Role： Joint author , pp.1365-1374）
金原出版 2012.10
Language：Japanese Book type：Scholarly book
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橈骨遠位端骨折 最近の進歩と治療法の選択
斎藤英彦，他（ Role： Joint author , pp.168-172）
金原出版 2010.7
Language：Japanese Book type：Scholarly book
MISC 【 display / non-display 】
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Punchihewa N.G., Miyazaki S., Chosa E., Yamako G.
Sensors (Switzerland) 20 ( 24 ) 1 - 11 2020.12
Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal) Publisher：Sensors (Switzerland)
Baseball hitting is a highly dynamic activity, and advanced methods are required to accurately obtain biomechanical data. Inertial measurement units (IMUs) can capture the motion of body segments at high sampling rates both indoor and outdoor. The bat rotates around the longitudinal axis of the body; thus, trunk motion plays a key role in baseball hitting. Segmental coordination is important in transferring power to a moving ball and, therefore, useful in evaluating swing kinematics. The current study aimed to investigate the validity and reliability of IMUs with a sampling rate of 1000 Hz attached on the pelvis, thorax, and hand in assessing trunk and hand motion during baseball hitting. Results obtained using the IMU and optical motion capture system (OMCS) were compared. Angular displacements of the trunk segments and spine joint had a root mean square error of <5◦ . The mean absolute error of the angular velocities was ≤5%. The intra-class correlation coefficient (>0.950) had excellent reliability for trunk kinematics along the longitudinal-axis. Hand velocities at peak and impact corresponded to the values determined using the OMCS. In conclusion, IMUs with high sampling rates are effective in evaluating trunk and hand movement coordination during hitting motion.
DOI： 10.3390/s20247331
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ロコモ度の機器による評価は? (特集 ロコモをめぐる最近の話題) -- (クリニカルクエスチョン)
帖佐 悦男, 鄧 鋼, 田村 宏樹, 山子 剛, 塩満 智子, 鶴田 来美
Loco cure = ロコキュア : 運動器領域の医学情報誌 2 ( 4 ) 340 - 343 2016.11
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：先端医学社
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Pathological Analysis of Adaptive Sports and Study of Device Development : Focused on Biomechanics
37 35 - 42 2016.6
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
Presentations 【 display / non-display 】
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ミニブタ用フロートリング型半月板インプラントの製作
内海 光稀，帖佐 悦男，山子 剛
The 22nd Conference on Biomechanics
Event date： 2024.3.23
Presentation type：Oral presentation (general)
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慣性センサを用いたカヤック競技中のパドリング動作分析
上橋 海正，宮崎 茂明，帖佐 悦男，山子 剛
第50回日本臨床バイオメカニクス学会
Event date： 2023.11.10 - 2023.11.11
Presentation type：Oral presentation (general)
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生体力学的な予測から考えるTHA機種選択 Invited
山子 剛，帖佐 悦男
第50回日本臨床バイオメカニクス学会
Event date： 2023.11.10 - 2023.11.11
Presentation type：Symposium, workshop panel (nominated)
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Tapered-Wedge型ステム設置後における患者個別の骨密度予測
村田 竣弥，和佐 宗樹，岡上 裕介，帖佐 悦男，山子 剛
第50回日本臨床バイオメカニクス学会
Event date： 2023.11.10 - 2023.11.11
Presentation type：Oral presentation (general)
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術後CT画像に生じるメタルアーチファクトがステム周囲の応力解析に及ぼす影響
鎗水 浩平，村田 竣弥，和佐 宗樹，岡上 裕介，帖佐 悦男，山子 剛
第50回日本臨床バイオメカニクス学会
Event date： 2023.11.10 - 2023.11.11
Presentation type：Oral presentation (general)
Awards 【 display / non-display 】
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学術研究部門受賞
2024.3 第42回宮崎銀行ふるさと振興助成事業
山子 剛
Award type：Award from publisher, newspaper, foundation, etc.
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工学部賞
2023.5 宮崎大学工学部
山子 剛
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優秀ポスター賞
2022.11 第6回日本リハビリテーション医学会秋季学術集会 重心移動で操作するLocomotion Robotは，人工股関節全置換術後における立位姿勢の体重負荷率およびバランス能力を改善する
宮﨑 茂明，山子 剛，荒川 英樹，坂本 武郎，川口 翼，伊東 きらり，中村 嘉宏，日吉 優，帖佐 悦男
Award type：Award from Japanese society, conference, symposium, etc.
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第37回日本整形外科学会基礎学術集会感謝状
2022.10 日本整形外科学会
山子 剛
Award type：Award from Japanese society, conference, symposium, etc.
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第9回ヘルスケア産業づくり貢献大賞「特別賞」
2022.6 九州ヘルスケア産業推進協議会
山子 剛
Grant-in-Aid for Scientific Research 【 display / non-display 】
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半月板損傷後の膝軟骨を守るFloat-ring型インプラントの開発
Grant number：22H03925 2022.04 - 2026.03
独立行政法人日本学術振興会 科研費 基盤研究(B)
Authorship：Principal investigator
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人工股関節全置換術後の生体力学的な未来予測
Grant number：17K01362 2017.04 - 2021.03
科研費 基盤研究(C)
Authorship：Principal investigator
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術後の骨量減少が生じない傾斜低弾性人工股関節ステムの最適化研究（国際共同研究強化）
Grant number：15KK0213 2016.04 - 2018.03
科研費 国際共同研究加速基金（国際共同研究強化）
Authorship：Principal investigator
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術後の骨量減少が生じない傾斜低弾性人工股関節ステムの最適化研究
Grant number：26750148 2014.04 - 2016.03
科研費 若手研究(B)
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皮質骨の微細孔構造及び基質の石灰化が骨力学特性に及ぼす影響
Grant number：20700378 2008.04 - 2010.03
科研費 若手研究(B)
Grant type：Competitive
Available Technology 【 display / non-display 】
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整形外科インプラントの研究開発
スポーツのバイオメカニクス研究
ロコモティブシンドロームのバイオメカニクス研究Home Page： 宮崎大学バイオメカニクス研究室
Related fields where technical consultation is available：・バイオメカニクス領域の技術（医用画像処理，力学試験，シミュレーション，センサなど）
Message：・共同研究の希望テーマ
「健康寿命の延伸」をテーマとした医療機器・ロボット・アプリの開発とその臨床応用に関する研究にご興味がある方はご連絡ください．