Table 2. Initial position, take-off, and ball height for the three header variants.
Test parameter Standing header Jumping header * Running header
Initial position shoulder-wide stand on a force plate (66 × 60 cm) shoulder-wide stand on a force plate (66 × 60 cm) Walk position at a mark in 3 m distance
Jump - Jumping with both legs Jumping with one or both legs
Ball height Height of the forehead One ball diameter above the head One ball diameter above the head
* same procedure for post-jumping header
† same procedure for post-running header