Film one approach
Set your phone at the side of the court and record a single approach and jump.
Kill it with data.
Stat Jump turns a phone video of your volleyball approach and jump into numbers you can train against.
Set your phone at the side of the court and record a single approach and jump.
Vertical, approach speed, penultimate step and plant angle, measured from the video.
One clear fix per session, and a log of every inch you gain.