Faculty Profiles - NAKAMURA Takao

MISC - NAKAMURA Takao

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皮膚電気インピーダンスを用いた自動車運転時の覚醒水準のモニタリング

楠原俊昌, 小林恭平, 中村隆夫, 山本尚武

生体医工学 47 ( 3 ) 2009

自動車運転時のドライバーの皮膚電気インピーダンスの計測

楠原俊昌, 小林恭平, 中村隆夫, 山本尚武

日本生体医工学会大会プログラム・論文集(CD-ROM) 48th 2009

Discrimination of Continuous Movement of Wrist Joint Using Forearm Electrical Impedance

NAKAMURA Takao, KUSUHARA Toshimasa, YAMAMOTO Yoshitake

IEICE technical report 108 ( 126 ) 1 - 4 2008.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

The discriminant analysis was used to discriminate between six movements of forarm -palmar flexion, dorsi flexion, ulnar deviation, radial deviation, pronation and supination- using change ratios of four parameters (R_e, R_i, f_m, β) of forearm electrical impedance. When the joint angle in the continuous movement was more than 40 degrees, we could discriminate among the six movements. The reason why there were a lot of misdiscrimination in less than 40 degrees of angle joint was considered as follows: the discriminant equations were inappropriate for small joint angle, SN ratio was smaller then one in large joint angle. These results were suggested that the discriminant analysis using parameters of electrical impedance could be useful for discrimination of continuous movement.

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Other Link： http://search.jamas.or.jp/link/ui/2008365766

Measurement of Electrodermal Activities for Monitoring of Arousal Level during Driving the Vehicle

楠原俊昌, 小林恭平, 中村隆夫, 山本尚武

システム・情報部門学術講演会講演論文集 2008 2008

ECIS法を用いたエストロゲン負荷細胞の微細動態の定量的評価

合田典子, 山本尚武, 片岡則之, 中村隆夫, 楠原俊昌, 毛利聡, 成瀬恵治, 梶谷文彦

日本生体医工学会大会プログラム・論文集(CD-ROM) 47th 2008

皮膚電気活動におけるSkin Impedance Reflex(SIR)評価法の改善の試み

山本尚武, 白井喜代子, 楠原俊昌, 中村隆夫

日本生体医工学会大会プログラム・論文集(CD-ROM) 47th 2008

前腕部電気インピーダンスを用いた手関節動作の判別

中村隆夫, 岸本明久, 楠原俊昌, 山本尚武

日本生体医工学会大会プログラム・論文集(CD-ROM) 47th 2008

Consideration of Running Form Using Lower Leg Electrical Impedance

中村隆夫, 北脇知己, 渡辺彰吾, 楠原俊昌, 矢野博己, 池田敏, 加藤浩, 山本尚武, 岡久雄

電子情報通信学会技術研究報告 107 ( 154(MBE2007 20-43) ) 39 - 42 2007.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

We have analyzed running for 90 minutes on a treadmill using lower leg electrical impedance. The subjects wore the three types of running shoes in this experiment. An acceleration of the ankle joint angle and surface electromyogram (EMG) of Vastus lateralis (VL), Tibialis anterior (TA) and Gastrocnemius (GC) were measured. The subjects also replied the questionnaire that was including the feeling of the shoes and fatigue before, during and after the running. The impedance data during the running was compared with the acceleration, EMG and questionnaire. As results, we could detect the characteristics of the movement which reflected the ankle joint angle and adapted to the character of the shoe, and evaluate the stability of the movement. We have found that the existence of sense of incongruity of shoes was influenced a change of impedance waveform. The measurement of lower leg electrical impedance might be able to monitor running form and/or to evaluate physical fatigue during treadmill running.

下腿部電気インピーダンスを用いたシューズの違いによるランニングフォームへの影響についての検討

中村隆夫, 楠原俊昌, 北脇知己, 山本尚武, 池田敏, 岡久雄, 矢野博巳, 加藤浩

日本生体医工学会大会プログラム・論文集(CD-ROM) 46th 2007

ECIS法を用いた放射線被曝の実時間連続評価法の開発に関する研究

合田典子, 山本尚武, 中村隆夫, 丸山敏則, 楠原俊昌

INNERVISON 22 ( 7 ) 7 - 7 2007

Development of high time resolution measurement system of frequency characteristics in bioelectrical impedance for biodynamic analysis

Takao Nakamura, Toshimasa Kusuhara, Yoshitake Yamamoto

SPIE Proceedings 6357 63571s-1 - 63571s-5 2006.11

Motion Discrimination of Parameter Analysis of Forearm Electrical Impedance

NAKAMURA Takao, KUSUHARA Toshimasa, YAMAMOTO Yoshitake

IEICE technical report 106 ( 162 ) 25 - 28 2006.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

The analysis of bioelectrical impedance with some independent parameters is used for accurate evaluation or discrimination of human motion. This paper shows results of motion discrimination of wrist joint using four parameters of forearm electrical impedance: Z_0, Z_∞, f_m and β. Discriminant analysis was used to determine which change ratios of four parameters of forearm electrical impedance with each movement discriminate between six motions. As results of a subject with 60 data, hitting ratio was very high and 95.0%. Two supinations and on radial deviation were mistaken. There were shorter Mahalanobis distances between centroid of supination groups and centroid of ulnar/radial deviation groups. This was caused by differences of impedance change between subjects in even same motion. This analysis using parameters of electrical impedance could be motion discrimination.

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Other Link： http://search.jamas.or.jp/link/ui/2007008189

一般口演I-1 各種身体運動に伴う生体電気インピーダンスのパラメータ分析(第28回中国四国支部大会抄録)

中村隆夫, 楠原俊昌, 山本尚武

生体医工学 : 日本エム・イー学会誌 44 ( 2 ) 330 - 331 2006.6

一般口演I-2 嚥下機能の経時変化の追跡のための生体電気インピーダンスの計測と解析(第28回中国四国支部大会抄録)

楠原俊昌, 中村隆夫, 白川靖博, 森恵子, 猶本良夫, 山本尚武

生体医工学 : 日本エム・イー学会誌 44 ( 2 ) 331 - 331 2006.6

身体運動の判別・評価のための生体電気インピーダンスのパラメータ分析

中村隆夫, 楠原俊昌, 山本尚武

日本生体医工学会大会プログラム・論文集 45th 2006

ECIS法を用いたX線照射細胞の微細動態のリアルタイム評価

楠原俊昌, 合田典子, 中村隆夫, 丸山敏則, 山本尚武

日本生体医工学会大会プログラム・論文集 45th 2006

Analysis of Bioimpedance Parameters Using High Time Resolution Measurement System

NAKAMURA Takao, KUSUHARA Toshimasa, YAMAMOTO Yoshitake

IEICE technical report. ME and bio cybernetics 105 ( 221 ) 31 - 34 2005.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

In order to analyze biodynamics using bioelectrical impedance, we have developed a measurement system for frequency characteristics of impedance with high time resolution of 1ms. This paper describes repeated measurement controlled by programming and parameters analysis using this system. The program can be controlled in the shortest interval 4ms and maximum 16,000 repeated times. In results of equivalent circuit with variable resistance, the accuracy of analysis was less the 1% errors. Considering the results of neck electrical impedance (IPG) during swallowing, central frequecy of Cole-Cole arc &fnof;_m and degree of distribution of relaxation time β will be promising parameters for biodynamic analysis.

Other Link： http://search.jamas.or.jp/link/ui/2005266103

Quantitative Evaluation Method Using Electrical Characteristics for Diagnosis of Skin Properties

SHIRAI Kiyoko, NAKAMURA Takao, KUSUHARA Toshimasa, DOHI Satoshi, YAMAMOTO Yoshitake

IEICE technical report. ME and bio cybernetics 105 ( 221 ) 35 - 38 2005.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

The skin trouble like the atopic dermatitis becomes a major social issue recently. However it is not easy to diagnose the skin trouble only by a qualitative evaluation such as the ocular inspection and the palpation. It is useful to diagnose and treat of the skin trouble that skin characteristic is evaluated by a quantitative evaluation non-invasively. The subjects were grouped in 6 categories with their sexuality and state of the skin. The skin impedance was measured in the forearm by the 3-electrode method and the frequency characteristics were examined by the automatic balanced bridge method using a precision LCR meter. The measurement results were analyzed by the principal component analysis and t authorization. We indicated to distinguish the state of the skin by the measurement value of skin impedance non-invasively.

Other Link： http://search.jamas.or.jp/link/ui/2005266104

携帯電話を活用したTV会議システムの遠隔医療・保健・福祉支援への適用

北脇知己, 大塚元美, 奥田博之, 小田慈, 岡田宏基, 中村隆夫, 東義晴, 後藤佐知子, 西田真寿美, 岡久雄, 岡久雄, 秦正治, 岡本卓爾, 山井成良, 三垣みつえ, 原田和成, 光本幸夫, 川田智恵子, 公文裕巳, 公文裕巳, 公文裕巳

日本ME学会大会論文集 44th 2005

各種前腕皮膚における電気特性の多変量解析を用いた検討

山本尚武, 白井喜代子, 中村隆夫, 楠原俊昌, 土肥哲

日本ME学会大会論文集 44th 2005

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