The Spine Morphology Study Of College Students Lying On The Spring Mattress

This paper by measuring different combination of spring mattress sag values of the subjects,drawing decubitus spinal shape curve, compares and analyses the natural form, to search for different size of the laws of college students' design or choose appropriate spring mattress: 1)This paper under the state of the body's natural posture, to measure the body's natural spine forms, and then map the human spine curves of natural form. 2) Human body lie on your back,did mattress subsidence quantity experiment in three stiffness spring assembly of 11 kinds of experiments on the mattress, and according to the amount of subsidence graph and compared with natural spinal shape curve analysis, comparing with their own natural spine shape curves at standing posture to calculate the deviation distance between them. 3) Subjects of different gender and different type of decubitus state the amount of sinking mattress and comfort the comparison of subjective evaluation. 4) Suggestions of partition bag spring mattress design are put forward.Studies of this paper show that:1) The subjects of the different type have different spine forms, there are also differences between men and women.2) Female college students generally suitable for the hard and medium-hard mattress, two mattress type of C5 is suitable for the most. Mesomorphs and ectomorphs is suitable for lots of mattress. Ectomorphs is relatively more suitable for mattress can give better hip support;Endomorphs of the subjects is most suited to can give humeral back and hip better support mattresses. Individual natural forms of spinal curve, the greater the difference between the mattress is suitable for sexual differentiation phenomenon is more prominent. Small spinal curve of natural s-shaped camber of the subjects of partition mattress composite structure types of sensitivity is greater, less suitable types of mattress. On the other hand, the spinal curve bending natural form large relatively more suitable for partitioning the mattress. Tests,the spring mattress is suitable for large the waist position spring hardness is generally for a hard or medium hardness, as a result, the waist comfort is essential.3) Male college students are suitable for medium-hard and hard mattress, two new mattress C11 and C8 is suitable for most people. Mesomorphs and endomorphs for smaller change perception of spring mattress, the subjects of lean body mass for the spring mattress for larger change in perception. Boy is suitable for the whole hard mattess, characteristic is adopted in humeral back, waist and hips above medium hardness of spring.4) The C6 is the most comfortable mattress for female ectomorphs, and the C4 is the most comfortable mattress for male ectomorphs, female ectomorphs hip maximum stiffness of the spring to give bigger hip support. For the male ectomorphs, the maximum stiffness of the spring at waist level is essential; Male mesomorphs than female mesomorphs to fit not partition mattress, such as male mesomorphs are very applicable C11, girls only one set and the size C11, root cause is that the natural forms of spinal curve there is a difference between individuals; The C11 is very suitable mattress for male endomorphs and female endomorphs,two groups of optimum mattresses are medium hardness above the types of mattress mattress overall hardness, give comfort good endomorphs.5) The comprehensive subjective evaluation experiment analysis and verification. The results showed that: C6 mattress is suitable for female ectomorphs. C5 mattress is suitable for female mesomorphs. C11 type mattress is suitable for female endomorphs. C4 mattress is suitable for male ectomorphs. C11 mattress is suitable for male mesomorphs. C8 mattress is suitable for male endomorphs.