Hops

The max box jump can tell us two things: 1.) how high you can plant your feet and 2.) how powerful and fast your athletic ability is. The jump is more about contracting muscle than it is having it.

Olympic lifts like the clean, the snatch, and jerk are all about jumping a weight up to a desired position. Because of the nature of the sport, these athletes have a ridiculous amount of jumping ability.

The ability to jump onto a high surface is about power vs. bodyweight, but when it's right it's amazing.

From Catalyst Athetics, a strength & conditioning gym in CA, who specializes in O-lifting:

Box jumps: When training knee and hip explosiveness with box jumps, it's typically more effective to use a box considerably below the athlete's maximal possible jump height but encouraging maximal jump height and a specific focus on complete knee and hip extension. The athlete should come down onto the box softly rather than sneak the feet up onto it. Often jumping onto boxes too high will encourage the athlete to cut his or her extension short and focus more on flexing and reaching the feet, which has nothing to do with what we're interested in achieving (this is analogous to a degree with snatching and cleaning heavier weights; athletes will often cut their pulls short in a rush to get under the bar). Additionally, there is no need to stand or jump to full extension on top of the box - this has nothing to do with the qualities we're interested in when performing box jumps. This is an action entirely associated with conditioning work.

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WOD

for time:
75 overhead squats, 44kg/30kg

then

max standing box jump

You must stand after landing for the jump to count.