Figure 1.

Set-up adopted for the data collection. The football goal was in a regular football pitch with natural grass. The mattresses were used to limit the risk of injuries to the goalkeepers and of damage to the wearable units. The balls for high dives were tied to the crossbar through a rope. The goalkeepers’ starting position was backwards the goal line (as showed by the shape) to allow a more natural diving moment (especially for high dives). The red lines indicate the direction of the high dives, and the blue lines indicate the low dives.