@article{oai:air.repo.nii.ac.jp:00002637,
 author = {小川, 美矢子 and 小野崎, 彩可 and 新田, 潮人 and 佐藤, 瑞騎 and 岩倉, 正浩 and 照井, 佳乃 and 上村, 佐知子 and 佐竹, 將宏 and 塩谷, 隆信 and OGAWA, Miyako and ONOZAKI, Ayaka and NITTA, Shioto and SATO, Mizuki and IWAKURA, Masahiro and TERUI, Yoshino and UEMURA, Sachiko and SATAKE, Masahiro and SHIOYA, Takanobu},
 issue = {2},
 journal = {秋田大学大学院医学系研究科保健学専攻紀要},
 month = {Oct},
 note = {[目的] 四種類の歩行を行い, 三軸加速度計のデータから得られたリサージュ図形及び体幹対称性の指標であるリ
サージュ指数(LI) の有用性を検討することを目的とした. [対象及び方法] 健常学生18名を対象とした, 対象者の
体幹に三軸加速度計を装着した状態で四種類の歩行(快適歩行速度重錘無(SS), 快適歩行速度重錘有(LSS), 低
速歩行速度重錘無(S), 低速歩行速度重錘有(LS)) を行った. 四種類の歩行条件下で, LI をそれぞれ比較した.
[結果] 快適歩行速度・低速歩行速度ともに, 重錘有の場合が重錘無の場合よりもLI は有意に高くなった. さらに,
SS・LS では, SS の方がLI は有意に高かった. [結語] リサージュ図形は, 体幹部加速度を視覚的に表すことがで
きる. リサージュ指数は, 体幹部加速度の前額面上における対称性を表せる可能性が示唆された., (Purpose) The purpose of this study was to evaluate the usefulness of Lissajous waveform and Lissajous
index (LI) as a new gait symmetry index using a tri-axial accelerometer under four different walking
conditions. (Subjects & Methods) A tri-axial accelerometer was attached in the trunk of 18 healthy young
subjects while walking at four different conditions (self-selected speed [SS], self-selected speed with the
right leg loaded, slow speed, and slow-selected speed with the right leg loaded). The subjects LI values
were measured and evaluated at four different walking conditions. (Result) The LI values were
significantly higher in the subjects who were walking with a leg loaded than in those waling without a
leg loaded at both the self-selected and slow speeds. The LI values of the subjects at the self-selected speed
were higher than those at the slow-selected speed with the right leg loaded. These data suggest that
unilateral lower limb loading significantly affects the trunk symmetry as measured by a tri-axial
accelerometer at both self-selected and slow speeds.
(Conclusions) These results suggest that Lissajous waveform is a suitable method of visual evaluation and
that the LI can be used to assess trunk symmetry during walking.},
 pages = {185--190},
 title = {三軸加速度計を用いたリサージュ指数による体幹部加速度の対称性の評価},
 volume = {23},
 year = {2015}
}