The Design Of One-finger-pressing Massage Biomechanical Model And Study Of Its Kinematics Characteristics

Purpose: Build one-finger-pressing massage biomechanical model and nalyze itskinematics characteristics.Method: It shall be taken by two groups of testers. Experts group have5peoples.Students group have5peoples too. First, set4gauge points on the right side of the upper limbof two group testers. In the same conditions, every tester are operated twice and cost60seconds every time. And then, use three-dimensional high speed motion capture system togather the real time data of one-finger-pressing massage operation process of both groups. Inthe environment of SMAS, using plot-joint-x2x function, by means of calculate and analyzethe test data of testers, to describe the locomotion relationship between adjacent joints. At last,apply CLIMA to study the rules of space movement and analyze the kinematics characteristicsof it.Result:①I have already built one-finger-pressing massage3links-3joints biomechanicsmodel, and the gauge point is clear. The kinetic characteristic of one-finger-pressing massagecould already describe.②The kinesiology data of ulna and radius deviation comparison andshoulder joint abduction comparison of two groups have visible differences（P<0.01）. But thestature, weight and wrist flexion angle comparison are not obvious（P>0.05）.Conclusion:①Multi-body model can be used to study the relation of spatial motion bysimulate the massage manipulation, to define motion displacement and to determine spaceangle. The motion is followed by a coupling rule. So it suited for study massage.②Whenoperating one-finger-pressing massage, the range of forearm swing is between20°to40°.The wrist flexion angle expand naturally and bulking to the greatest extent. The angle ofshoulder joint abduction is between50°to70°. Wrist joints send force to complete theoperation.And the other joints maintain stablility.