When a player turns in studded boots, the surface resists this movement. Rotational resistance describes how great this force is. It is measured using a test foot with studs, which is loaded and rotated on the surface.
The right level
- too high: the foot “sticks”, placing greater strain on the knees and ankles
- too low: players slip and cannot find traction
Influencing factors
Key factors are the fibre type, pile height, and the amount and condition of the infill. Compacted or contaminated infill material changes the values. Rotational resistance is one of the test criteria in the FIFA Quality Programme. To learn how we keep artificial turf pitches in shape, see artificial turf cleaning.
