Vertical Displacement
To measure jump height, you need to measure vertically from the reference line to the top of the parabola. The total vertical displacement of the whole jump is actually zero, if the skater takes-off and lands at the same height. You, however, only want the vertical displacement of the first half of the jump, from take-off to the top of flight.
To convert this measurement to real life displacement, multiply by the scale factor you calculated for horizontal displacement.
actual jump height = measured jump height x scale factor
For example, using measurements form our computer we got:
measured height = 3.18 cm
scale factor = 34
real jump height = 3.18 cm x 34 = 108 cm = 1.08 m
Did you know??
Some skaters have jump heights greater than 30 inches during their jumps. For a skater who is 5'10'' with and additional reach of 20'' (typical size for a male skater), he could easily dunk a basketball if he were to raise his arms up in the air.
Scroll back up to the graphic above. Use the triple jump in
the graphic to perform jump height calculations with your own
measurements. Even though you may have a different measured height,
your actual height should be pretty close to ours once you multiply
by your scale factor. If your calculation of vertical displacement
isn't close to ours (108 cm), try again.