@article{oai:nsg.repo.nii.ac.jp:00003529,
 author = {蘆田, 一郎 and 稲垣, 大悟 and 川上, 心也 and 宮岡, 洋三 and Ashida, Ichiro and Inagaki, Daigo and Kawakami, Shinya and Miyaoka, Yozo},
 issue = {1},
 journal = {新潟医療福祉学会誌, 1346-8774},
 month = {Dec},
 note = {application/pdf, 論文(Article), 本研究では、同一の被験食品を異なる二体位(座位と仰臥位)で嚥下したときの舌筋筋活動を記録し、その活動パターンのTp法(筆者らが最近開発した解析手法)による解析の妥当性を調べた。また、本解析対象のような生体データのコンピュータによる記録に際し、高頻度のディジタル・サンプリングに伴うデータ・サイズの巨大化がしばしば問題となるところから、リダクション・データに基づく解析の妥当性についても調べた。Tp法による解析の結果、原データを用いた場合に、座位と仰臥位における舌筋活動パターンの差違を識別できた。また、データ・サイズが原データの2^<-6>となる強いリサンプリングを施したリダクション・データを用いても、Tp法のパターン識別能は損なわれなかった。すなわち、本Tp法による筋活動パターンの解析および解析対象のデータ・リダクションの妥当性が示唆された。, The present study evaluated the validity of methods for pattern analysis of muscle activity and for data reduction. An electromyogram (EMG) of the tongue muscle was recorded before, during, and after swallowing by surface electrodes either in the upright or in the supine position. The recorded analogue EMG signals were sampled (at 1.0kHz) to convert to digital EMG signals, and the digital EMG signals only during swallowing were extracted mainly based on laryngeal movement. The number of data nodes consisting of the digital EMG signals was reduced to 2^<-i> (i=1, 2, ..., 8) by a re-sampling method. Patterns of the digital EMG signals were analyzed and quantified using a Tp technique developed recently in which assigns percentiles of cumulative EMG signals to a standardized time scale. Two major findings were obtained in the present study. The first finding was that application of the Tp technique detected significant differences in Tp between the upright and supine positions, when the non-reduced (i.e., original) EMG signals were used to calculate. The second finding was that Tp calculated by the original EMG signals were consistent with those by the 2^<-6> reduced EMG signals in the both positions. The present findings suggest the validity of our analytical methods for pattern analysis of muscle activity and for data reduction.},
 pages = {33--39},
 title = {筋活動のパターンの解析法とデータ・リダクション法の妥当性について},
 volume = {5},
 year = {2005}
}