Research on the Effect of Elasticity Distribution of Five-Zone Spring Mattress on Human Supine Position Spine Form

Taking zonal spring mattress as the research object, the paper adopted mattress sinking measurement and range method, by evaluation index include the gap of lumbar and back and the sinking ratio of back, studied the effect of elasticity distribution of spring mattress on body lied spine form. The results showed that, the gap of lumbar and back is bigger when the flexibility of hip area of 25 kinds of five-zone spring mattress is bigger and the flexibility of waist area is smaller; the gap of lumbar and back is smaller when the flexibility of hip area and the flexibility of waist area are smaller. When the range of the sinking ratio of back and buttock was 60–100%, the elastic distribution of mattress was good and human spine shape was good. Elasticity distribution of spring mattress was a key factor of effecting body spine form.