This was obtained by integrating the acceleration curve from the rest position. This is to illustrate that the smoothing of integration. This argues that it would be difficult to obtain the features of the acceleration curve if one were to start with the displacement curve as was done in the video analysese. Direct acceleration measurements by solid state accelerometer is practical. Mystery dip at about 70 to 90 degrees.
Scull blade is stalled.
The acceleration profile can easily be used to monitor performance during pieces and races. It can be used to help diagnose the start, the beginning, the sprint, etc.