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Competing with Lower Level Opponents Decreases Intra-Team Movement Synchronization and Time-Motion Demands during Pre-Season Soccer Matches

Figure 1

A rotation matrix was applied rotating the data through an angle θ.

A rotation matrix was calculated from the field vertices and applied to the players' positions, rotating the data through an angle θ in order that the longitudinal displacements were aligned with the x-axis and the lateral displacements were aligned with the y-axis.

Figure 1

doi: https://doi.org/10.1371/journal.pone.0097145.g001