Does the same leg take off and land?

Yes. One leg drives the jump and absorbs the landing for the whole set before you switch sides, which is what makes the exercise unilateral rather than a regular box jump done with a hop.

Is this safe for beginners?

Not as a starting point. Single-leg landings place more load on the knee than landing on two feet, so build a base with a standard Box Jump, single-leg squats, and a Box Jump (Single-Leg Takeoff) first.

How is this different from a regular box jump?

A regular box jump splits the takeoff and landing across both legs. This version puts all of it on one leg, which trains more power and balance per leg but is also more demanding on the knee and hip stabilizers.

How many reps and sets should I do per leg?

Because it's a maximal-effort plyometric movement, keep sets short, around 3 to 5 reps per leg, and rest long enough between sets to land each rep with full control rather than chasing fatigue.

Single-Leg Box Jump

What Is the Single-Leg Box Jump?

Single-Leg Box Jump is a compound exercise that primarily targets the quadriceps and also engages the glutes, hamstrings, and calves. It is an advanced-level plyometric movement that asks one leg to produce the entire jump and then absorb the entire landing, so it is considerably more demanding than a standard two-footed box jump.

This version sits near the top of a box jump progression. Athletes use it to build single-leg power and landing control for sports that rarely load both legs evenly, such as sprinting, cutting, and jumping off one foot in basketball or soccer. Because the same leg drives the takeoff and absorbs the landing, it trains the full stretch-shortening cycle on one side at a time rather than splitting the work between two legs.

The driving leg's quadriceps and glutes generate most of the upward force, with the calf adding a final push through the ankle. On landing, the same muscles work in reverse to decelerate the body, while the hip stabilizers, particularly the gluteus medius, keep the knee tracking over the foot instead of caving inward. Because there is no second leg to share the load, balance and frontal-plane control matter as much as raw power.

Training this way has a benefit beyond the single rep: a meta-analysis of unilateral plyometric training in healthy athletes found it significantly reduced the jump-performance gap between a person's stronger and weaker leg, an effect two-legged plyometric training did not show.

It is not a starting point for anyone new to jumping. A solid Box Jump and comfort landing on one leg from a Box Jump (Single-Leg Landing) should come first, along with baseline single-leg strength from exercises like single-leg squats or step-downs. Athletes who do not yet land box jumps quietly and in control should keep building that base before adding a single-leg landing.

Muscles Worked

MuscleActivation

Rectus Femoris: Primary
Vastus Lateralis: Primary
Gastrocnemius (Medial Head): High
Gluteus Maximus: High
Vastus Medialis: High
Biceps Femoris: Medium
Gastrocnemius (Lateral Head): Medium
Soleus: Medium
Gluteus Medius: Low

Instructions

Stand tall facing the box, then step back about a stride and shift your weight onto your jumping leg.
Sink into a deep bend through the hip, knee, and ankle of your jumping leg, leaning the torso forward, reaching the free leg back, and swinging both arms behind you.
Drive the arms forward and extend the hip, knee, and ankle of your jumping leg explosively to leave the ground.
Bring your hands together in front of your chest as you rise, letting your free leg trail behind your jumping leg.
Spot the landing zone on the box and reach the jumping leg toward it as you descend.
Land on the ball of the jumping foot first, then lower the heel, bending the hip and knee to absorb the impact softly.
Let the free leg hang behind your body for balance rather than letting it touch down.
Finish by standing tall on the box with the hip fully extended before stepping back down to reset for the next rep.

Common Mistakes

Pushing off both feet
Letting the free foot help with the takeoff turns the rep into a regular box jump and hides a weaker leg instead of training it.
Landing stiff-legged
Landing with a locked knee and hip skips the shock absorption the exercise is meant to build and sends the impact straight into the joints.
Knee caving inward
A knee that drifts toward the midline on landing is a sign the hip stabilizers aren't controlling the leg and raises stress on the ACL.
Jumping to too high a box
A box taller than the jumping leg can land on with control forces a stiff, off-balance landing just to clear the height.
Leading with the chest instead of the hips
Diving the torso forward to reach the box shifts load onto the lower back instead of the hip and knee that should be doing the work.
Jumping down off the box between reps
Stepping down keeps one hard landing per rep; jumping back down adds another impact for no training benefit.

Injuries

Single-Leg Box Jump is a high risk exercise when performed with proper technique.

Because one leg produces the jump and then alone absorbs the landing, the knee carries more load than it would in a two-footed box jump, and a stiff or inward-collapsing landing (knee valgus) raises stress on the ACL and patellar tendon. The ankle is also at risk if the foot lands off balance or off the edge of the box, and the hip stabilizers on the landing side can become overworked before they are conditioned for single-leg impact.

Reduce the risk by starting with a box low enough to land on with a quiet, controlled bend through the hip, knee, and ankle, and by keeping the knee tracking over the foot rather than letting it drift inward. Build single-leg strength and balance first with single-leg squats, step-downs, or a Box Jump (Single-Leg Takeoff), and master a standard two-footed Box Jump before adding a single-leg landing. Step down off the box between reps instead of jumping down, since repeated jump-down landings add impact without adding training benefit.

Stop the set if a landing feels unstable, if the knee caves inward, or if you feel sharp or lingering joint pain. Fatigue degrades landing mechanics quickly in single-leg work, so quality reps on a lower box beat more reps on a higher one.

Overview

Primary Focus: Quads
Equipment: Body weight and plyo box
Modality: Plyometrics
Difficulty: Advanced

Alternative Exercises

Frequently Asked Questions

Q: How high should the box be for a single-leg box jump?: Lower than you would use for a two-footed box jump. Pick a height you can land on with a quiet, controlled bend through the hip, knee, and ankle, and only raise it once every landing looks that way.
Q: Does the same leg take off and land?: Yes. One leg drives the jump and absorbs the landing for the whole set before you switch sides, which is what makes the exercise unilateral rather than a regular box jump done with a hop.
Q: Is this safe for beginners?: Not as a starting point. Single-leg landings place more load on the knee than landing on two feet, so build a base with a standard Box Jump, single-leg squats, and a Box Jump (Single-Leg Takeoff) first.
Q: How is this different from a regular box jump?: A regular box jump splits the takeoff and landing across both legs. This version puts all of it on one leg, which trains more power and balance per leg but is also more demanding on the knee and hip stabilizers.
Q: How many reps and sets should I do per leg?: Because it's a maximal-effort plyometric movement, keep sets short, around 3 to 5 reps per leg, and rest long enough between sets to land each rep with full control rather than chasing fatigue.