心拍変動スペクトル解析を用いた着衣時困難性評価における着衣順序の検討

概要

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The present study was designed to investigate evaluations concerning difficulty by the order of clothe during dressing tryout, using power spectral analysis of heart rate variability (HRV). The subjects were 25 healthy women (20-23 yrs.) The subjects put on two long sleeve T-shirts of different types (One was a longsleeved knitted T-shirt, and the other was a long- sleeved woven fabric T-shirt. The knitted T-shirt was considered soft and easy to dress). Autonomic nervous activity was evaluated before and 3 minutes afterputting on each type of T-shirt, using power spectral analysis of HRV. The results were as follows: 1) Both Tshirts: 1 minute after putting on a T-shirt, the LF/HF ratio was significantly increased, whereas the HF/TP value was remarkably decreased. At this time, The LF/HF ratio and the HF/TP were effective as the index that evaluated the difficulty of during dressing. 2) The influence by the order of clothes appeared in both the sensory evaluation and the HRV: When the knitted shirt was put on after the woven fabric shirt, it was evaluated as being easy to dress. However, the HF/TP value decreased while the LF/HF ratio increased, indicating that the sympathetic nervous system was dominant.
2009-12-04