Theory and Design of a GravityDriven Orthotic Device for Sitting Posture

Abstract

Abstract: Abstract： The working principles and limits of existing orthotic devices for sitting posture were analyzed. A novel way to help users easily maintain healthy sitting posture was proposed. By using fourbar linkage, body weight was transformed into torques to rotate the pelvis. A biomechanical experiment was conducted to acquire the relationships between external torques and rotation angles of the pelvis while sitting. Based on the experimental results, the prototype of the gravitydriven orthotic device was built. Its feasibility was proved by a verification experiment. The results showed that this device could help users easily maintain ideal pelvic incidence while relaxing low back muscles.

Key words: Key words： low back pain, sitting posture, ergonomics, mechanism design, biomechanical experiment

CLC Number:

TB 18

ZHOU Junfan,LUO Yun. Theory and Design of a GravityDriven Orthotic Device for Sitting Posture [J]. Journal of Shanghai Jiaotong University, 2016, 50(02): 182-187.

References

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