健康女性の重心動揺変化に及ぼす諸因子

妊娠中の体形変化は姿勢変化をもたらし、このためにおこる重心移動がマイナートラブルを起こす原因となることが考えられる。そこで、健康女性37人を対象に、重心動揺を起こす因子と考えられる体型要因に着目した基礎的研究を行い、以下の結果を得た。1）重心動揺測定項目の中で、重心動揺距離、包絡面積、重心動揺面積の項目は開眼時より閉眼時が有意に数値が大きく、X軸方向動揺平均、Y軸方向動揺平均の項目は、開眼時と閉眼時とで差がなかった。2）ロンベルグ姿勢での開眼及び閉眼重心動揺検査では、座高、下肢長に正の相関が、肥満度に負の相関があるこが示唆された。

During the period of pregnancy, movement of the center of mass due to changes in the posture results from the changes in the body form, and this may cause minor troubles. In this study, we examined body form factors which may be involved in the movement of the center of mass in 37 healthy womem, and obtained the following results. 1) In the examination items of the movement of the center of mass, the moving distance of the center of mass, the envelope area and the area of moving of the center of mass were significantly larger when measured with the eyes open than when measured with the eyes closed, while there were no differences in the means of moving in the x-axis direction and in the y-axis direction whether the eyes were open or closed. 2) The moving examinations of the center of mass in the Romberg's posture with open or closed eyes suggested positive correlations with the sitting height and the length of the inferir limb and a negative correlation with the obesity level.