Jump classification — Docs

Jump the way you normally test, and Metric Jump names the jump for you. In Free jump mode it tells six jump types apart in real time, rep by rep. They are the CMJ, the squat jump, the Abalakov, a single-leg jump on each leg, and the drop jump. Repeat jump mode is different: you pick it as a mode, and Metric Jump detects the leg and the protocol.

Countermovement jump (CMJ)

The CMJ is the default vertical jump test. Put your hands on your hips. Dip down and drive straight back up in one motion, with no pause at the bottom.

Metric Jump measures CMJ height from your takeoff velocity, not from your time in the air. See Jump metrics.

Squat jump (paused)

The squat jump starts from a held squat. Lower to the bottom of your dip. Hold the position for at least 1 second. Jump from a dead stop. The squat jump tests concentric power in isolation and removes the stretch-shortening cycle.

A common cheat on squat jumps is a small dip or bounce before the jump. Metric Jump catches this and labels the rep a CMJ. If the pause wobbles or runs shorter than 1 second, Metric Jump also labels the rep a CMJ.

Abalakov jump

The Abalakov is a two-leg countermovement jump with a full arm swing. Record it in the same set as a hands-on-hips CMJ, and Metric Jump shows how much height the swing adds. See Jump analytics.

Single-leg jump

A single-leg jump is a jump and a landing on one leg. Metric Jump labels each rep left or right. Record both sides in one set to compare them. Use the comparison for return-to-play screening and asymmetry monitoring. See Jump analytics.

Drop jump

A drop jump is a step off a box, a short contact with the floor, and a rebound straight back up. Record it in Free jump mode, front-on, with no mode change.

Stand on the floor and let Metric Jump calibrate.
Step up onto your box and stand still for at least half a second.
Step off the box.
Land on both feet and rebound as high and as fast as you can.

Metric Jump labels the rep Drop jump, or DJ in short labels. It scores the rep on height, contact time and RSI. A drop jump competes only with other drop jumps for PBs and records, so it never moves your CMJ bests. Mix drop jumps with your other jumps in the same set.

Metric Jump looks for a still stance on the box, a free fall, a short contact and a rebound. It does not detect a drop jump in these cases:

The box is lower than 20 cm.
You land or rebound on one leg. Drop jumps are double-leg only.
Your contact with the floor is shorter than 80 ms or longer than 600 ms.
More than 1.2 seconds pass between leaving the box and landing.
You stand on the box for less than half a second before you step off.

Repeat jumps

You start a repeat jump test by choosing Repeat jump from the mode menu. Metric Jump then detects the protocol, 10/5 or 5/3, from your hop count. See Repeat jumps & hops.

Inside a repeat jump recording, Metric Jump labels each test by leg: Repeat jump, Repeat jump · left or Repeat jump · right. It reads the leg from the height of each foot through the hops, so film side-on with both feet in frame. Each leg keeps its own RSI PB.

Mixed sets

Metric Jump classifies each rep on its own. One jump set can hold several jump types, which feeds jump analytics. Metric Jump splits progress charts and personal bests by jump type.

Edit a classification

Metric Jump can classify a rep wrongly or detect a false rep.

Scroll to the rep table at the bottom of the set summary.
To relabel a rep, tap the coloured type capsule on its row and choose the right type.
To drop a false rep, tap the minus button on its row. Metric Jump hides the rep and keeps it in the table.

A drop jump keeps its Drop jump label. You cannot relabel it as another jump type, or relabel another rep as a drop jump. To drop a false drop jump, hide it.

To change the leg on a repeat jump test, open the Tests table. Tap the coloured capsule on the test’s row and choose Leg.