How many single-leg box jumps should you do per side when you are new to the exercise?

Start conservatively: 2 to 3 sets of 3 to 4 jumps per leg, with full rest between sets and sides, on a box noticeably lower than your two-foot box jump height. Progress by raising the box only once every landing is quiet and the knee stays stacked over the foot, not by adding volume.

What can I do instead of the single-leg box jump?

A single-leg broad jump or a driving step-up trains similar single-leg power with a smaller landing demand if a box feels risky. If the single-leg version is too advanced right now, the standard two-foot box jump is the right regression, not a smaller single-leg box.

Who is the single-leg box jump for, and when is it a bad idea?

It closes left-right power gaps and builds single-leg athletic power that carries over to field and court sports, once the basic box jump pattern is second nature. It is a poor choice for beginners, anyone with knee instability, or lifters who have not built single-leg strength with step-ups or split squats first, since it demands real force production from one joint at a time.

Advanced

Single-Leg Box Jump

The single-leg box jump exposes and closes side-to-side power gaps that two-foot jumps hide, and the box shortens the landing to protect the joints. Producing enough force to launch from one leg demands real strength and coordination, while the takeoff and landing both tax single-leg stability. Reserve it for well-trained athletes and keep the box modest until the pattern is clean on both legs.

Equipment: Box
Body part: Glutes, Quads
Type: Balance, Plyometric
Browse by muscle: Gluteus Maximus, Rectus Femoris, Vastus Lateralis
Browse by movement: Squat

How to do it

1
Set a low, stable box a short step in front of you.
2
Balance on one leg with a soft bend in the knee and hip.
3
Dip slightly and swing the arms back to load the standing leg.
4
Drive the arms up and explode off the one leg onto the box.
5
Land on both feet, or the same foot, in a soft quarter squat with the knee over the toes.
6
Step down one foot at a time and reset before the next rep.

Tips

Start lower than you think; a box you can barely clear wrecks the landing mechanics.
Keep the knee stacked over the foot on takeoff and landing rather than letting it collapse in.
Step down every rep instead of hopping down to spare the single leg from repeated impact.

Variations

Common mistakes

Attempting single-leg box jumps before you can stick two-foot landings consistently, skipping the strength and balance prerequisite entirely.
Letting the hips rotate open at takeoff instead of driving straight up off the one leg, which twists the body mid-air and complicates the landing.
Setting the box close to your two-leg box jump height, demanding more force from one leg than it can safely produce yet.
Rushing the reset between reps instead of finding a stable balance on the standing leg first, which lets fatigue creep into the ankle and knee.
Absorbing the landing on a nearly locked knee instead of letting the knee and hip bend to soak up the impact.

Frequently asked

How many single-leg box jumps should you do per side when you are new to the exercise?: Start conservatively: 2 to 3 sets of 3 to 4 jumps per leg, with full rest between sets and sides, on a box noticeably lower than your two-foot box jump height. Progress by raising the box only once every landing is quiet and the knee stays stacked over the foot, not by adding volume.
What can I do instead of the single-leg box jump?: A single-leg broad jump or a driving step-up trains similar single-leg power with a smaller landing demand if a box feels risky. If the single-leg version is too advanced right now, the standard two-foot box jump is the right regression, not a smaller single-leg box.
Who is the single-leg box jump for, and when is it a bad idea?: It closes left-right power gaps and builds single-leg athletic power that carries over to field and court sports, once the basic box jump pattern is second nature. It is a poor choice for beginners, anyone with knee instability, or lifters who have not built single-leg strength with step-ups or split squats first, since it demands real force production from one joint at a time.

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