Approaches and level of analysis of the physical demonstration of professional soccer players. Level 4 (part 2).

Let's go today to try to deepen in the relationship between the velocity and the acceleration that a soccer player can demonstrate, and the relationship between them.
In this case I show you some data recently taken from a veteran spanish amateur soccer player, with whom we did a testing session that we have done some years ago with professional soccer players from a Spanish First Division soccer team.
After the warming up, the soccer player performed different trials of 20m at full speed, but 2 of them with a standing start, 1 from a previous walking constant speed, and 3 more from a previous running constant speed, 1 slow, 1 medium and 1 high speed.
You will see the graphic of the relationship between the initial velocity when starting the 20m and the maximum acceleration demonstrated just after the changing of the velocity for performing the 20m full.

Remember that as I have already comment before and I will also do constantly, it is really important to know the limits of the approaches that we use when we work, and one of them when using technology (in this case I use a GPS system for capturing the data of the soccer player), is the way that the software detects the accelerations, that depends directly on the algorithm used, but also on the filter used on the raw data.

In the next post we will see more related data based on professional soccer players.

Enjoy,