Bulgarian split squat: the setup, the stance and where it fits

The Bulgarian split squat is a split squat with your back foot raised on a bench, so the front leg does most of the work. Researchers call it the rear-foot-elevated split squat. It loads one leg heavily with light equipment, which is why the leg day uses it in both its gym and dumbbell versions.

This page covers the setup, the rep, what it trains, how stance and lean change the work, the dumbbell and bodyweight versions, the faults, and the alternatives. The two-leg squat and its checkpoints are on squat form.

How to set up

1. The bench. A flat bench, a box or a sturdy chair at about knee height or a little lower. One recent training trial used a 40-centimeter bench, roughly 16 inches.¹ If your back hip feels pulled tight at the bottom, go lower.
2. The back foot. Rest the top of your foot (laces down) or the ball of your foot on the bench, whichever lets you balance. The back leg is a kickstand, not a working leg.
3. The step out. Stand a long step in front of the bench. A good check: at the bottom, your front shin leans forward a little and your front heel stays down. One study suggests a step about as long as your leg (more on that below).²
4. The width. Feet about hip-width apart side to side, not on one line, so you're balanced on a base rather than a tightrope.

Find the stance once, then mark it: count the heel-to-bench distance in shoe lengths so every set starts in the same place.

The rep

1. Brace and hold the weight still at your sides.
2. Lower straight down, front knee travelling the way your toes point, until your back knee is just short of the floor or your front thigh is about level with it.
3. Drive up through your whole front foot, heel heavy, until the front leg is straight.
4. Finish all the reps on one leg, then switch. Start with your weaker side and match its reps on the other.

What it trains

Mainly the front of the thigh and the glutes of the front leg, with the hamstrings helping. A few studies show how the load is shared:

• Hip-dominant, like the back squat. In 20 resistance-trained men, the Bulgarian split squat and the back squat were both hip-dominant, with the most work at the hip. The front knee bent through less range in the split squat.³
• More hip work per leg. In eight male college rugby players lifting a 10-rep max, the hip extension moment at the bottom was 44% greater in the split squat than in the back squat, even though the load was lighter and the torso more upright.⁴
• Hardest at the bottom. In 20 young women with intermediate lifting experience, at 80% of their max, the split squat worked every muscle measured hardest in the bottom third of the rep, and worked the outer front of the thigh more than the hip thrust across the whole rep (59.4% against 43.6%).⁵
• The load matters more on one leg. In nine healthy college-aged men lifting up to 75% of their body mass, the estimated forces in the glutes and the front of the thigh climbed with the load in a squat, a split squat and a step-up, often more steeply in the split squat and step-up.⁶

A 2020 review of 16 studies of glute activity listed the split squat among the exercises with very high glute activity.⁷ Activity in a set isn't growth over weeks, but it's a reasonable guide to which muscles a lift asks for.

Bulgarian split squat for glutes, or for the thighs

You change the share between hips and thighs with two settings, not a different exercise:

• Step length. In 20 male college students, a longer step increased hip-extensor activity and hip work, with a limited effect on the front of the thigh. The authors suggest a step about equal to leg length for healthy adults.²
• Torso lean. In 21 trained female athletes, a 40-degree forward lean raised activity in the glutes, the hamstrings and one front-thigh muscle, the rectus femoris, compared with an upright torso.⁸

So for the glutes: a longer step and a slight forward lean, chest over the front thigh. For more of the front of the thigh, do the reverse: a moderate step and an upright torso, letting the front knee travel forward. Both versions train both; neither study found a stance that switched one off. These are single-session measures of activity, so treat them as settings to try, not promises about what grows.

Dumbbell, bodyweight and other versions

With dumbbells, grip often gives out before the legs. Straps, or the goblet version, fix that. When the heaviest dumbbells are easy, slow the lowering or pause at the bottom before you look for heavier ones.

Does it hold up as a main lift?

Two training trials say yes. In a five-week trial, 18 academy rugby players trained twice a week with either the back squat or the rear-foot-elevated split squat; both groups got stronger on both lifts, with no difference between them.⁹ In a six-week trial, 24 resistance-trained men trained one leg with heavy Bulgarian split squats (four sets of 10 at 80% of their max) and the other with light loads and blood-flow restriction cuffs. Both legs grew similarly in the outer front of the thigh, measured by ultrasound, and got similarly stronger on the lift.¹ Both are small trials in young, trained athletes and lifters, so read them as a direction, not a ranking.

The common faults, and a fix for each

• Feet on one line. You wobble every rep. Set them hip-width apart side to side.
• The front heel lifting. The step is too short. Move the front foot forward.
• Pushing off the back foot. The back leg starts doing the work. Keep the back foot light; the front leg lowers and lifts you.
• Front knee caving in. Push it out over your toes, and go lighter until it stays.
• A bench that's too high. The back hip pulls tight and the rep gets short. Use a lower one.
• Squatting through pain. Sharp pain is not soreness. Stop, and see a doctor or a physical therapist.

Alternatives

• No bench: a split squat with the back foot on the floor, or a reverse lunge.
• A box but no balance yet: step-ups, which train one leg at a time from a box.
• Two legs: the goblet squat at home, or the front squat with a barbell.
• A machine: the leg press, one leg at a time.

Sets, reps and where it fits a leg day

• Two or three sets of 8 to 12 a leg, stopping with a rep or two in reserve. (How to judge reps left.) The American College of Sports Medicine's 2026 position stand advises at least two sets per exercise.¹⁰
• Third on a leg day, after the squat and the hinge, as both of the leg day's tables have it. The dumbbell version gives it a third set, because one leg at a time is how light dumbbells keep up with your legs.
• Count it for the thighs and the glutes. One set a leg is one set for each.
• Add load at the top of the range. (Progressive overload covers how much.)

If you'd rather not plan it alone

The stance takes one session to find; deciding where the split squat goes in your week, and how heavy it should be next to your squat, is the part a page can't do. Coaching is the version where your workouts are built around the days you actually have, and a weekly call looks at the week you just had and rebuilds the next one. Coaching to build muscle explains how that works, and here's how to apply. Otherwise: find your stance with no weight, mark it, and do three sets of 10 a leg at your next leg day.