Divide the group into two lines. The front two players of each line sit on the ground facing each other with their feet towards one another. Use a ball weighing 4 kg.
Execution
The two players pass the ball to each other five times. After every five passes, the player who has been sitting the longest stands up and starts the course.
The remaining player continues with a new player opposite them.
The course is in the shape of a 'Christmas tree model'.
At the end of the route, the player goes into a wall sit. The wall sit is held until the fourth player joins.
From the moment the third player is in position, there are always three players active per group.