Abstract
In the past study, seat swing function was optimized from dynamics aspect (hip-sliding force) in diverse conditions. And the influence of seat-swing function on physiological aspect (blood flow) was elucidated. But in the design of seat swing function, it is not had clarified considering both dynamics and physiology yet. In this study, design solution of seat-swing function was clarified considering dynamics aspect and physiological aspect (compressive force at head of the seat cushion that is substitute of blood flow). The design solution of seat swing function is the combination of B.A. and C.A. to decrease both hip-sliding force and compressive force. As a result, it was indicated that design solution was close to hip-sliding preventing curve, when decreasing hip-sliding force was taken precedence, compared decreasing compressive force. On the other hand, design solution was that C.A. close to 0 degree, when decreasing compressive force was taken precedence.
