The standing VJ has a lot to do with strength, most people are just too weak to jump high from a stand, but can go higher with a runup thanks to elasticity
If you can fullsquat with 2xBW or greater from a pause then strength is not your limitation to a high standing VJ ![]()
And I figure if your jumping more than 4 inches higher from a runup or steps then you need to work on strength and explosive strength…
anyway the best way to measure the VJ is to use the top of your head. You know how tall you are, easy to measure, then setup a target at a specific height and tap your head on it. I just use the ceiling of my gym, which has loose ceiling panels. I just see how high I’m popping it up with my head ![]()
The raised ceiling area will require me to have a 40+ inch VJ to pop up, so when I can nudge that I’m there ![]()
from Kelly Bagget’s Q&A who has a 42inch standing VJ BTW…
Q: What is the true measure of a vertical leap. Does it require steps. Does it mean that you can stand flat-footed and jump straight up 42"? How is vertical leap defined?
A: The vertical leap is just a measure of how high a person can get off the ground. It can be measured in a variety of starts - flat footed, one step, 3 step runup, running start off a single leg, standing on a box and bouncing off the ground etc. It is usually measured via the reach method which takes the height a person can reach flat footed and subtracts it from the height they reach in a jump. The problem with this method is people cheat when they reach. It can also be measured by measuring how high the top of a persons head gets in a jump. That’s the most accurate and my personal favorite because it’s impossible to cheat if measured accurately. For example, I always got my measurements by taking my height and, standing flat footed, jumping up and tapping ceiling tiles with my head. I was fortunate to always have a bunch of buildings with tile ceilings nearby.
At 5’9 I could jump up and knock up a 9’3 ceiling tile. Just make sure you don’t attempt this with a hard ceiling or you’ll knock yourself out!

