To evaluate gait balance, there is only a method of using a dedicated device at a measurement site, a method of confirming the effect of walking balance in an early stage in daily life and confirming the effect There was not.SOLUTION: A portable terminal having a free holding position converts a three-dimensional acceleration during walking into vectors in three directions of gravity direction, traveling direction of a horizontal surface, lateral direction, and from the transition of a vector length, two steps (1) A difference in time, (2) a difference between average left and right time on the left and right, and (3) a ratio of the amplitude of the acceleration in the traveling direction to the amplitude of the acceleration in the left-right direction, and makes a balance evaluation. In addition, walking speed and stride at the time of measuring three indices are also recorded. Only the balance evaluation in the same straight walking path is extracted from the position information, and from the comparison of the balance evaluation in the plurality of straight walking paths, the evaluation data of the walking path unsuitable for measurement is discarded, and the time series change in the walking path I see. By doing this, we find the collapse of walking balance at an early stage, and confirm the recovery of walking balance.(FIG.【課題】従来は、歩行バランスを評価するために、測定会場で専用機器を用いる方法しかなく、日常生活の中で歩行バランスの崩れを早期に知り、また回復に努めた効果を確認する方法がなかった。【解決手段】保持位置が自由な携帯端末を用い、歩行時の3次元加速度を重力方向および水平面の進行方向、左右方向の3方向のベクトルに変換し、ベクトル長の推移から▲1▼二歩時間のバラつき、▲2▼左右の平均一歩時間の差異、▲3▼進行方向と左右方向の加速度の振れ幅の比を算出し、バランス評価とする。併せて、3指標計測時の歩行速度、歩幅も記録する。 位置情報から同一直線歩行路におけるバランス評価のみを抽出し、複数の直線歩行路におけるバランス評価の比較から計測に不適切な歩行路の評価データは破棄し、計測に適した歩行路における時系列変化を見る。これにより、歩行バランスの崩れを早期に発見し、また歩行バランスの回復を確認する。【選択図】図3
