Fig. 6 | Scientific Reports

Fig. 6

From: The development and validation of a performance infill tracking system to investigate rotational traction mechanisms on artificial turf surfaces

Fig. 6

The mean (a) torque versus angle and (b) vertical displacement for eighteen trials conducted at 177 N (blue) and 647 N (green) of normal load. The shaded area on both graphs indicates the standard deviation calculated from the eighteen trials conducted at each normal load. For the vertical displacement (b), a displacement of 0 mm indicates the top of the surface with no load; larger negative magnitudes indicate greater compression of the surface below the test foot.

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