Skaters practise doing higher and higher single jumps or half-turns with progressively faster approach speed. That is the basic drill exercise with the Jumpometer. Half-turns are safest for the skaters to do while they build leg strength and refine their timing.
Skaters can do their jump exercise solo or as part of a stroking session.
They enjoy the addition of jumps to stroking for variety. Here is the logic for the basic exercise . A precise upward push gives greater jump height and a faster approach gives greater jump distance. Jumping higher and farther increases a skater's flight time in the air. The combination of greater height and greater distance will help a skater to complete more revolutions in a jump.