The Application of an Apparatus of Motion Measurement and Analysis in Freestyle Aerials

In order to get the acceleration, angular velocity and other kinematic parameters of the ski athlete during the training timely, which can help team coach analyse the action and guide the team members training with purpose, we design an information acquisition system based on the attitude sensor. This system can gain the parameter information of three-dimensional acceleration and angular velocity recorded by the sensor, and through a certain algorithm can achieve the parameters of velocity, angular acceleration and angle at any time. From the analysis of the parameters, the coaches can guide the athlete training. Experimental results show that this system can record the movement information accurately and help athlete training targeted, which has theoretical and technical guidance value.