本研究は，移乗介護の動作解析により，介護動作の標準化と介護技術の専門性の評価を目的として，三次元動作解析を用いて車椅子からベッドへの移乗介護を再現して運動学的に分析した。基本肢位での重心に近似する第2仙椎棘突起の三次元の移動軌跡および加速度データにて，構成動作ごとの分割点にある極値との一致がすべての分割線の各時期に認められ，各構成動作の特徴を捉えることができた。移乗介護動作を三次元動作解析にて分析を行い，動作に5つの分割線がみとめられ，移乗介護の動作期を6つに分割できた。移乗介護を始める①開始期，それ以降を順に，②引き付け期，③立ち上がり期，④回旋期，⑤着座期，⑥座位期と規定できた。以上のことから，三次元動作解析によって，移乗介護は6局面の介護動作から構成されていることが明らかになった。

The present study aims at the development of care techniques by standardizing the movement of transfer assistance. It was analyzed by replicating the movement transferring from wheelchair to bed by using three-dimensional operating analysis kinematically. At the turning point of each phase, spinous process of the second vertebra which approaches the gravity point in the basic foot's position, three-dimensional movement locus and speed of acceleration，and concordance of the turning point of extreme value has partly admitted in all six phases, and those suggested that there are reliability and adequacy in the six phases. Movements of transferring assistance were analyzed using three-dimensional operating analysis, and from this analysis, five tipping points were admitted, so the terms of movements were divided into six phases. Those are ① when to start the movement of transferring assistance, and we defined the following processes in order: ② shifting, ③ standing up, ④ turning, ⑤ sitting down, and ⑥ adjusting seating position. From these results, the composition of the movement of transferring assistance of six phases in each phase was clarified by three-dimensional operating analysis.

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