Box Jump (Single-Leg Takeoff)
What Is the Box Jump (Single-Leg Takeoff)?
Box Jump (Single-Leg Takeoff) is a compound exercise that primarily targets the quadriceps and also engages the glutes, hamstrings and calves. It is an intermediate-level plyometric movement in which the athlete drives upward and onto a box from a single stance leg, then lands on both feet to absorb the impact. Replacing the two-leg countermovement of a standard Box Jump with a one-leg drive forces each side of the body to produce force independently, closing the gap between a stronger and a weaker leg that a bilateral jump can hide.
The exercise is common in unilateral plyometric programming for field and court sports, where athletes rarely push off two feet at once when accelerating, cutting or jumping for a ball. Coaches use it to build single-leg power and prepare the hip, knee and ankle to handle load asymmetrically before moving on to variations that also land on one foot, such as the Single-Leg Box Jump. A meta-analysis of randomized trials in athletes found unilateral plyometric training reduced between-leg jump asymmetry more consistently than bilateral plyometric work, which supports single-leg drills like this one as a tool for balancing leg power.
Most of the work falls on the quadriceps and glutes of the takeoff leg as it extends through the hip, knee and ankle, with the calves adding the final push off the ground. Landing with both feet spreads the impact evenly and lets the quads, glutes and hamstrings share the deceleration, which makes this variation less demanding on any single joint than a box jump that also lands on one leg. Raising the box height increases the pull on the hips and glutes to clear it; lowering it shifts more of the work to quick, reactive knee and ankle extension.
It suits athletes who already jump and land a standard box jump cleanly and are ready to train each leg on its own, and it works well as a stepping stone before true single-leg landings. Anyone without a solid bilateral jumping base should first build general leg strength and master the two-foot Box Jump, since a weak or unstable takeoff leg here shows up immediately as a stumble or an off-target landing.
Muscles Worked
- Rectus Femoris
- Primary
- Vastus Lateralis
- Primary
- Vastus Medialis
- Primary
- Gluteus Maximus
- High
- Biceps Femoris
- Medium
- Gluteus Medius
- Medium
Instructions
- Stand a short stride from the box with your weight on the leg you will take off from, knee slightly bent, arms relaxed at your sides.
- Shift your bodyweight onto that single leg and reach the other foot back behind you.
- Hinge slightly at the hips and bend the knee of your stance leg to load it.
- Swing both arms back, then drive them forward and upward as you push off hard through that one leg.
- Fully extend the hip, knee and ankle of the takeoff leg, driving your free knee up and forward to help lift you onto the box.
- Tuck both knees toward your chest in the air and bring your feet together to prepare for a two-foot landing.
- Land softly on the box with both feet flat and roughly hip-width apart, letting your hips and knees bend to absorb the impact.
- Stand up tall on the box to finish the rep, then step down, don't jump down, and reset your stance.
- Complete all reps leading with one leg, then switch and repeat leading with the other.
Common Mistakes
Skipping the arm swing
Keeping the arms still on the takeoff removes power the arms would otherwise add, leaving the single leg to produce all the force on its own.
Cutting the takeoff leg short
Stopping the push before the hip, knee and ankle of the stance leg fully extend leaves power on the table and forces a lower, less controlled jump onto the box.
Landing narrow with the knees caving in
A narrow, knock-kneed landing on the box loads the inside of the knee instead of sharing the impact evenly between both legs.
Choosing a box that's too high
A box set above what a single-leg drive can clear forces a knee tuck or a short landing that catches the shin instead of the top edge.
Training only the stronger leg
Favoring the more powerful leg defeats the point of the drill and lets the side-to-side power gap it is meant to close get wider instead.
Jumping straight back down off the box
Hopping down repeats landing impact without the controlled single-leg drive that makes this exercise useful, adding fatigue that is better spent stepping down and resetting.
Injuries
Box Jump (Single-Leg Takeoff) is a medium risk exercise when performed with proper technique. The main strain points are the takeoff leg's knee and ankle, which have to produce the whole push-off alone, and the landing itself, where a shin can catch the box edge if the single-leg drive falls short or a knee can cave inward on a narrow, unstable landing.
Pick a box height the single-leg drive can clear with room to spare, land with the feet roughly hip-width apart and let the hips and knees bend to absorb the impact rather than landing stiff-legged. Warm up with easier jumps first, train both legs for equal volume, and stop the set once fatigue starts to degrade the landing, since plyometric work performed tired is when technique breaks down and injury risk climbs.
If the takeoff leg cannot produce a controlled, repeatable jump yet, regress to a standard two-foot Box Jump or a single-leg step-up to build strength first. Once the landing here is consistently soft and controlled on both legs, progressing to the Single-Leg Box Jump adds a single-leg landing on top of the single-leg takeoff.
- Primary Focus
- Quads
- Equipment
- Body weight and plyo box
- Modality
- Plyometrics
- Difficulty
- Intermediate
Alternative Exercises
Other Names for the Box Jump (Single-Leg Takeoff)
The Box Jump (Single-Leg Takeoff) is also known as:
- 1 to 2 Box Jump
Frequently Asked Questions
- Q: How is this different from a regular box jump?
A standard Box Jump drives off two feet together. This variation drives off a single leg before landing on both feet, so each leg has to produce its own takeoff force instead of sharing the load.
- Q: Which leg should I lead with?
Perform equal sets on each leg. Training only the stronger leg widens any existing side-to-side power gap instead of closing it.
- Q: How high should the box be?
Start lower than a box you could clear with a two-foot jump, since one leg produces less force than two. Choose a height that lets you land in a controlled quarter-squat with room to spare.
- Q: Is this harder than the Single-Leg Box Jump?
No, it is a step toward it. Landing on both feet is more stable than the single-leg landing that exercise asks for, so this version suits athletes who have a reliable single-leg takeoff but are not yet ready to land on one leg too. See the Single-Leg Box Jump once that landing is solid.
- Q: Do I need a running start?
No. A short approach step or a standing single-leg countermovement both work, as long as the push comes from one leg and you land on two feet.