Linear Depth Jump
The linear depth jump has you step off a low box, absorb the landing, and immediately rebound straight up as high and as quickly as possible. It trains the legs to absorb a large amount of force in a very short time and redirect it back out, a quality that carries over to sprinting, jumping, and change-of-direction sports. Because the drop itself adds real stress to the joints, it's an intermediate-level drill that depends on a solid landing mechanics base before adding load.
Why it works
When you land from a drop, the quadriceps, hamstrings, glutes, and calves all have to absorb your body weight and the momentum of the fall within a fraction of a second, then reverse that force into an upward jump. This rapid absorb-and-reverse action trains what's often called reactive strength, the ability to shorten the time between landing and pushing back off. Because the drop height, rather than an active jump, sets up the landing force, this drill overloads that quality more directly than a standard jump does, which is why it's typically introduced only once someone already lands jumps cleanly and with good control.
Set up
- Choose a low box or platform, generally no higher than knee height for a first attempt at this drill.
- Stand at the edge facing away from your landing area with your toes near the box's edge.
- Pick a clear, flat landing zone with enough room to jump straight up afterward.
- Warm up with a few standard box jumps or squat jumps before attempting a depth jump.
How to do it
- Step off the box, don't jump out from it; let gravity do the work of the drop.
- Land on both feet at the same time, absorbing the impact through bent knees and hips.
- Spend as little time as possible on the ground before reversing into the jump.
- Explode straight upward as high as you can, driving your arms up to help the jump.
- Land the rebound jump softly, again absorbing through bent knees and hips.
- Reset fully between reps rather than moving straight into another repetition.
Form cues
- Step off, don't jump off the box.
- Land quiet, on the whole foot.
- Ground contact should be short, not a pause.
- Explode straight up on the rebound.
Breathing: Take a breath before stepping off, then exhale sharply as you drive upward into the rebound jump.
Common mistakes
Jumping out and away from the box instead of stepping off and letting gravity create the drop.
Fix: Let your body weight simply fall off the edge; jumping out adds height and force the drill isn't designed to absorb yet.
Pausing too long on the ground before rebounding.
Fix: Focus on a short, springy ground contact instead of settling into a full squat before jumping.
Landing with the knees caving inward on either the drop or the rebound.
Fix: Keep your knees tracking in line with your toes on both landings; regress to a lower box if this keeps happening.
Choosing a box that's too high before landing mechanics are solid.
Fix: Start no higher than knee height and only increase drop height once every landing looks controlled and quiet.
How to program it
- This is a high-intensity nervous-system drill, not a volume exercise, so 3 to 5 reps for 2 to 3 sets is enough on any given day.
- Because true depth jumps tax the joints and nervous system heavily, once a week is a sensible starting frequency, with full recovery in between.
- Perform it early in a session, right after the warm-up, when the legs are fresh and reaction time is sharpest.
- Increase drop height only in small steps, and only once the landing and rebound both look clean at the current height.
Safety notes
- Keep the box low, at knee height or below, until landing mechanics are consistently solid.
- Stop the set if landings start looking heavy or the knees cave inward; that's a sign of fatigue outpacing recovery for this drill.
- Use a stable box or platform and a non-slip landing surface.
Exercise profile
- Force
- Push
- Mechanics
- Compound
- Category
- plyometrics
Frequently asked questions
How many sets and reps of the linear depth jump should I do?
2 to 3 sets of 3 to 5 reps is plenty, since this drill trains explosive power rather than muscular endurance.
How often should I do depth jumps?
Once a week is a reasonable starting frequency, since the drop places real stress on the joints and nervous system that benefits from full recovery between sessions.
What can I do instead if I don't have a box?
A standard front box jump trains similar leg power starting from the ground, without needing the drop-off setup.
How high should the box be for a depth jump?
Start no higher than knee height. The goal is a short, controlled ground contact and a powerful rebound, not the biggest drop you can survive.