A Kinematic Analysis Of Tianjin's Excellent Badminton Players' Picking Technique In Front Of The Net

In today's world,the mainstream technology of badminton is mainly offensive,which requires quick and accurate tactical awareness.It is a major test of athletes' psychology,physical strength and skills.Excellent technology is the key to win the game.The technique of picking the ball in front of the badminton net is a method of hitting the ball in the passive situation.Net technique is a relatively difficult skill for badminton players.Players should reasonably master the technique of picking the ball in front of the net,so as to improve their technical weaknesses and change the passive into the active situation and the passive defense into the active attack in the game,so as to win the game.In this paper,the technique of forehand picking at the front of badminton net was tested by Qualisys motion capture system.The technique of forehand picking at the front of badminton net was studied by taking seven outstanding male badminton players in tianjin city as the research object.Qualisys motion capture system to gather the kinematics data badminton net forehand pick,forehand to pick the ball to the net technology is divided into four stages: mobile position stage,swing the racket back stage,hit the ball,and hit the ball return,after analysis of each link of the kinematics characteristics of upper limbs,torso and lower extremities,by the parameters of each link to explore badminton net pick the kinematics characteristic and regularity of the ball,provide the basis for athletes training and competition.The following conclusions can be drawn:1.In the moving positioning stage,the right foot of the seven athletes moved farther than the left foot,and the distance was different.The center of gravity of the body of athletes in the movement and positioning phase is the trend of first down and then up,lu * and Jane * center of gravity movement curve is similar,the amplitude of the curve is large,xu *,zhu * and Chen * three athletes center vertical direction is similar,the fluctuation is small.2.During the tapping phase,the shoulder joint Angle of the seven athletes increased to different degrees,while the amplitude of the shoulder joint Angle of the Jane * and the shoulder joint Angle of the forward * changed greatly.The torsional Angle of the torso of seven athletes was reasonable and the trend of change was obvious.The left ankle Angle of all the seven athletes showed an increasing trend between 60° and100°,but all the lower limbs of the athletes were in an unstable state.3.In the swing hitting stage,the speed of each link of the seven players is in the order of trunk,upper arm,forearm,wrist and racket.The change of the speed of the swing hitting conforms to the principle of whipping.The left hip Angle of all seven athletes showed a trend of decreasing,and the better use of the torso to increase the speed and strength of whipping.4.Return to position after hitting the ball,the return time of seven players after hitting the ball was the shortest,while the return time of xu *,wang * and Chen * was relatively long.There was a gap in displacement between the moving and taking positions and the return to position after hitting the ball.In the return position,the body center of gravity is kept in advance,in time to quickly return the position,for the following catch ready.