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