WADA Chikamune

写真a

Title

Professor

Laboratory

2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi, Fukuoka

Research Fields, Keywords

Assistive Technology, Bio-medical Engineering, Ergonomics, Human Interface

E-mail

E-mail address

Phone

+81-93-695-6048

Fax

+81-93-695-6048

Post Graduate Education 【 display / non-display

  • 1996.03  Hokkaido University  Graduate School, Division of Engineering  Doctoral Program  Completed  JAPAN

Degree 【 display / non-display

  • Hokkaido University -  Doctor of Engineering  1996.03

Biography in Kyutech 【 display / non-display

  • 2016.08
    -
    Now

    Kyushu Institute of TechnologyGraduate School of Life Science and Systems Engineering   Department of Human Intelligence Systems   Professor  

  • 2014.04
    -
    2016.07

    Kyushu Institute of TechnologyGraduate School of Life Science and Systems Engineering   Department of Human Intelligence Systems   Associate Professor  

  • 2013.04
    -
    2014.03

    Kyushu Institute of TechnologyGraduate School of Life Science and Systems Engineering   Department of Brain Science and Engineering   Associate Professor  

  • 2007.04
    -
    2013.03

    Kyushu Institute of TechnologyGraduate School of Life Science and Systems Engineering   Department of Biological Functions and Engineering   Associate Professor  

  • 2001.04
    -
    2007.03

    Kyushu Institute of TechnologyGraduate School of Life Science and Systems Engineering   Associate Professor (as old post name)  

Biography before Kyutech 【 display / non-display

  • 1996.04
    -
    2001.03

    Hokkaido University, Research Institute for Electronic Science   Research Assistant   JAPAN

Academic Society Memberships 【 display / non-display

  • 2004.04
    -
    Now
     

    The Society of Instrument and Control Engineers(SICE)  JAPAN

  • 2003.04
    -
    Now
     

    Acoustical Society of Japan  JAPAN

  • 2003.04
    -
    Now
     

    The institue of electronics, information and communication engineers (IEICE)  JAPAN

Specialized Field (scientific research fund) 【 display / non-display

  • Rehabilitation science/Welfare engineering

  • Measurement engineering

  • Biomedical engineering/Biomaterial science and engineering

 

Publications (Article) 【 display / non-display

  • Validation of a body-conducted sound sensor for respiratory sound monitoring and a comparison with several sensors

    Joyashiki T., Wada C.

    Sensors (Switzerland)    20 ( 3 )   2020.02  [Refereed]

     View Summary

    © 2020 by the authors. Licensee MDPI, Basel, Switzerland. article distributed under the terms and conditions of the Cr. The ideal respiratory sound sensor exhibits high sensitivity, wide-band frequency characteristics, and excellent anti-noise properties. We investigated the body-conducted sound sensor (BCS) and verified its usefulness in respiratory sound monitoring through comparison with an air-coupled microphone (ACM) and acceleration sensor (B & K: 8001). We conducted four experiments for comparison: 1) estimation by equivalent circuit model of sensors and measurement by a sensitivity evaluation system; 2) measurement of tissue-borne sensitivity-to-air-noise sensitivity ratio (SRTA); 3) respiratory sound measurement through a simulator; and 4) actual respiratory sound measurement using human subjects. For 1), the simulation and measured values of all the sensors showed good agreement; BCS demonstrated sensitivity ~10 dB higher than ACM and higher sensitivity in the high-frequency segments compared with 8001. In 2), BCS showed high SRTA in the 600–1000 and 1200–2000-Hz frequency segments. In 3), BCS detected wheezes in the high-frequency segments of the respiratory sound. Finally, in 4), the sensors showed similar characteristics and features in the high-frequency segments as the simulators, where typical breathing sound detection was possible. BCS displayed a higher sensitivity and anti-noise property in high-frequency segments compared with the other sensors and is a useful respiratory sound sensor.

    DOI Scopus

  • Relationship between Lateral Bending and Shoulder Abduction during Double-crutch Walking

    Yoshiki NISHISAKO, NAGASAKI Takayuki, WADA Chikamune

    Rigakuryoho Kagaku  ( The Society of Physical Therapy Science )  35 ( 1 ) 41 - 47   2020.01  [Refereed]

     View Summary

    <p>[Purpose] We used musculoskeletal simulation to estimate abduction of the shoulder and lateral bending of the spinal column during crutch walking, and investigated the relationship between lateral bending of the spinal column and abduction of the shoulder during double-crutch walking. [Participants and Methods] The participants were five healthy young males. Data of movement during crutch walking was measured using a 3D motion analysis system. Based on the obtained data, shoulder joint abduction and lateral bending of the spinal column during double-crutch walking was estimated using a musculoskeletal simulation. [Results] A significant correlation between the lateral bending angle of the spinal column and abduction angle of the shoulder was found during the crutch stance phase. [Conclusion] A relationship between lateral bending of the spinal column and abduction angle of the shoulder was found, and it was considered that the axillary pad slipping out of the axilla during double-crutch walking was a possible factor.</p>

    DOI CiNii

  • Reliability of laser-assisted hindfoot alignment evaluation

    Ohnishi Tadasuke, Hida Mitsumasa, Nagasaki Takayuki, Wada Chikamune

    Journal of Physical Therapy Science    32 ( 1 ) 38 - 41   2020.01  [Refereed]

     View Summary

    <p> [Purpose] A goniometer is frequently used for static measurement of hindfoot alignment. However, although goniometer measurements require experience, their reliability and validity remain controversial. We developed a hindfoot alignment measurement method by laser as an alternative measure. The purpose of this study was to examine the reliability of laser-assisted hindfoot alignment evaluation. [Participants and Methods] Two non-expert examiners (without medical knowledge), briefly trained in the use of laser-assisted hindfoot alignment evaluation, evaluated hindfoot alignment in 12 healthy participants. [Results] The ICC of the intra-rater reliability was 0.74 for both examiners and the ICC for inter-rater reliability was 0.43. [Conclusion] The good intra-rater and moderate inter-rater reliability of laser-assisted hindfoot alignment evaluation, when used by non-professionals, suggest the laser-assisted hindfoot alignment evaluation may be appropriate for use in clinical practice settings.</p>

    DOI CiNii

  • Comparison of Regression Algorithm for Vanishing Point Estimation based on Car Distribution

    Tangsuksant W., Noda M., Kitagawa K., Pintavirooj C., Wada C.

    BMEiCON 2019 - 12th Biomedical Engineering International Conference      2019.11  [Refereed]

     View Summary

    © 2019 IEEE. In order to improve an application from the viewpoint of helping blind people waiting for the bus, classification of the vanishing view is required. The vanishing point from a perspective view is a feature that may improve the performance of viewpoint classification, especially in the case of congested traffic. The idea proposed by this study bases on the vanishing point estimation following car distribution on the road. In essence, the cars are detected using a You Only Look Once (YOLO) technique which extracts all the to the center point of a squared boundary. Normalization of the data points are then computed in percentages. Next is the calculation of the nineteen features of the data points of the car distribution. Finally, the vanishing point is estimated by supervised regression. This experiment compares the estimated results among five different regressions consisting of Linear, k-Nearest Neighbor, Decision Tree, Support Vector, and Multi-layer Per-ceptron regression. The obtain results show that the k-Nearest Neighbor regression computed the lowest distance error of 10.53, compared to the other regression algorithms.

    DOI Scopus

  • Evaluation of a Commercial Force Sensor for Real Time Applications

    Ahmed M. M. Almassri, Wan Zuha Wan Hasan, Chikamune Wada

    14th International Conference on Innovative Computing, Information and Control      ICICIC2019-082   2019.08  [Refereed]

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Publications (Books) 【 display / non-display

  • ヒトの運動機能と移動のための次世代技術開発(共著)

    和田親宗 ( Joint Work ,  163-168ページ:ユビキタスリハビリテーション 第1節開発動向 )

    エヌ・ティー・エス  2014.02

  • 福祉技術ハンドブック(共著)

    和田親宗 ( Joint Work ,  248-251ページ: 2.3.5タクタイルエイド )

    朝倉書店  2013.10

Conference Prsentations (Oral, Poster) 【 display / non-display

  • ベッド上での体位変換介助における介助者の足部配置と腰部負荷の関係

    松本光司

    第34回リハ工学カンファレンス  2019.08  -  2019.08 

  • 松葉杖長適合基準の妥当性の検討

    永﨑孝之

    第34回リハ工学カンファレンス  2019.08  -  2019.08 

  • 足底圧情報による起立介助者の足部位置推定法の提案

    北川広大

    第34回リハ工学カンファレンス  2019.08  -  2019.08 

  • 杖型計測装置による日常動作の識別方法の提案

    黄贇初

    2019年日本生体医工学会九州支部学術講演会  2019.03  -  2019.03 

  • 実装条件における体導音センサと空気伝導型マイクロホンの特性と比較

    城屋敷健志

    2019年日本生体医工学会九州支部学術講演会  2019.03  -  2019.03 

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Lectures 【 display / non-display

  • Introduction of Assistive Technology

      2019.04.01 

  • Introduction of Assistive Technology

      2017.10.07 

  • Introduction of Laboratory of Human-function Substitution System

      2017.10.06 

  • Physical Measurement for Human Assistive Technology

      2016.10 

  • 医療・福祉と工学

    第37回臨床歩行分析研究会定例会   2015.10.18 

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Activities of Academic societies and Committees 【 display / non-display

  • 2019.05
    -
    2021.05

    The institue of electronics, information and communication engineers (IEICE)  

  • 2016.05
    -
    2018.05

    The institue of electronics, information and communication engineers (IEICE)  

  • 2016.01
    -
    2018.01

    The Society of Instrument and Control Engineers(SICE)  

  • 2015.05
    -
    2017.05

    The institue of electronics, information and communication engineers (IEICE)  

  • 2014.11
    -
    2015.11

    The institue of electronics, information and communication engineers (IEICE)  

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