Biomechanical Analysis Based On The Movements Of Human Upper Limb Kinematic Chain

Human body’s movement is not a single part in, but links to several adjacentjoints as a hub in the driving action of skeletal muscles, coordination and cooperationwith each other to complete.Different body posture cause different forms of exercise and the number of linksinvolved in the action are different aspects of the introduction of the chain of humanmotion to retain the integrity and independence of the motor system in the study ofhuman movement mechanism of the process, not only on the local link movementmechanism studies, more focus on sports throughout the kinematic chain analysis.Human upper limb exercise with multi-link chain, with multiple degrees offreedom, can be a variety of complex movements, but the complexity of themovement are the basic functional movements composed. Kinematic chain of humanupper limb functional movements, including pushing, pulling, whipping three forms.By studying the movement of chain links with the increase of the upper limb duringthe push, pull Movement external work effect changes in the subjects push, pull actiondesigned a sitting position, kneeling upright, standing three positions,Positions are described as follow:Sitting position posture: upper extremity kinematic chain exercise, subjects torsosupporting BTE system features a fixed chair, his right hand holding a test systemwith BTE ball head attached accessories, upper body upright body function chairsitting right side edge, so that the shoulder vacant.Kneeling upright posture: hip arm kinematic chain driven movement, subjectswere right-handed people hold the tester with BTE ball head attached accessories,kneeling on a foam mat right knee, back BTE host course for the hip joint force thecounterclockwise rotation of the leading role in Figure2.Standing position: the lower limbs-the core-collaborative movement of upperlimb kinematic chain, test personnel were standing by, right hand holding the nose andconnected to the tester BTE ball accessories, front and rear legs were opened lungeposition, left foot when the front, right foot, the conduct of three basic movements, theprocess of adding force to reverse the lower limbs kicking and core areas.Human upper limb movement chain whipping which factors affecting the speedof the end of the joint research expanded when. Experiments using whipping actionBTE primus motion simulation system simulation testing of human upper limbkinematic chain, high-speed cameras and EMG acquisition software to synchronizethe movement of information gathering subjects. Through experimental research anddata processing and analysis to draw a bit late conclusion:1.Through the study of human upper limb movement chain pushing in differentpositions, different load conditions, the power output of the external changes pullaction, come to make the body increase the maximum output power increasesconclusion chain links the number of human motion. Athletes in competitions andtraining should seriously appreciate all aspects of coordination between the kinematic chain to avoid "unlinked " phenomenon, the need for physical training beforeconducting functional athletes move to do screening and found weaknesses in thekinematic chain, and solve problems in the movement. Should also be functional inthe traditional physical training physical training on the basis of the kinematic chain tosolve solve the problem of " shorter-board " problem.2.chain of human upper limb movement momentum transfer process can changethe line speed of each joint features to describe the linear velocity of each jointkinematic chain from the beginning to the end in order to achieve the maximum, whena joint with the maximum line speed it is adjacent to a joint line speed is graduallydecreased, while its next adjacent joint maximum muscle strength in active role in theacceleration of a joint obtained in this joint initiative muscle, muscle coordination,antagonistic the joint action of muscles continue to repeat this process endstransmission links in the transfer process increasing joint range of motion, gettingsmaller and smaller so that the quality of the end joints of the kinematic chain speedsup the whole movement of the joints to the chains, the maximum speed of each link,the sports equipment in hand gained the maximum velocity.