Research On The Biomechanical Characteristics Of Human Chain Motion Whiplash Movement

Human movement is multi-joint movement of Kinematic chain,all actions are part of the interaction between the human body through to completion.Kinematic chain of human link is a scientific model to explore the human movement interaction and transformation of bones, joints and muscles. Exploration and research on kinematics and dynamics law of kinematic chains not only reveals the secret to life movement mechanism,but also for other Scientific research and technological development of a strong boost.Whiplash movement is an important part of many sports technique aims, purpose is to enable the maximum speed the end of link.Currently most of the studies on the whiplash movement analysis are simply motion analysis or a single joint or a muscle group of the study,ignored the relevance of the motor system and movement,lack of overall system model and the replacement model. Sorting out the biomechanical characteristics of body whiplash movement from point of view of the human kinematic chain,Kinematic chain from point of view of part of the body whip to sort out the biomechanical characteristics of muscle related to muscle movement in the whip role in the process of quantitative research, researching the relevant muscles in the role of the process of Whipping action will help us better understand mechanisms of the body's movement and precise guidance Athlete training, technical movements more reasonable and effective.In this study,obtained the parameters in spiking of volleyball players and instep kicking of soccer player by motion Image analysis,compared the similarities and differences of the muscles' function In different time phases of the action,to find out the biomechanical characteristics of joint angle, angular velocity changes and explore the work of the law of human kinematic chain in the process of whipping action.The following conclusions:(1)The lower whip football and the upper whip Volleyball are typical systemic whiplash movement,volleyball whiplash movement which are involved in every aspect of the direct transfer of energy and momentum,the football whiplash movement only the trunk and lower extremities involved in the direct transfer of energy and momentum,Play a greater upper extremity of individuals with different,but still playing a role in maintaining the body balance and ensuring quality of movement.(2)Upper and lower limbs whipping flogging or without support, the complexity of the form of joint movement and angular velocity of the frequency of changes in some variations, this is the project characteristics and anatomical structure on the lower limb joints are closely related.(3)Volleyball whiplash movement at the end of the main factors that speed the time to reverse the trunk, as quoted in the level of outreach arm stage, hitting stages and the upper arm horizontal adduction internal rotation of the timing, the timing of elbow extension movements, and when the elbow angle shots.Football whiplash movement at the end of the main factors that The magnitude of the swing leg, the timing of leg hem, thighs braking time thigh flexion antagonist's IEMG.(4)Whiplash movement is the best embodiment of human action sports chain, you need to take the initiative to all sectors of the body muscles and antagonistic muscles active coordination and cooperation, particularly in the training emphasis on the pivotal role of the trunk.