The Bulgarian split squat is one of the best single-leg exercises for building the quads and glutes — it challenges each leg on its own with far less load than a barbell squat. Here's how to do it with good form, the muscles it works, the mistakes to avoid, and how to program it.
The Bulgarian split squat is a single-leg compound exercise that primarily works the quads and glutes of the front leg, with the hamstrings and adductors assisting and stabilizing. You elevate your rear foot on a bench and squat down on the front leg, then drive back up through the front foot. It builds strength and size one leg at a time, exposes side-to-side imbalances, and needs much less weight than a bilateral squat to be effective.
The Bulgarian split squat is a single-leg compound movement, so the front leg does the work while the rest of the body stabilizes. The quads and glutes drive the lift, with the hamstrings, adductors and core keeping you balanced and upright.
| Role | Muscles | What they do in the lift |
|---|---|---|
| Primary mover | Quadriceps | Extend the front knee to drive you up out of the bottom |
| Primary mover | Gluteus maximus | Extend the hip, especially with a forward torso lean |
| Assisting | Hamstrings, adductors | Support the hip and knee and control the descent |
| Stabilizers | Core, calves | Keep the torso upright and the front foot steady |
Step-by-step form for the Bulgarian split squat. If you're new, start bodyweight and hold a rack or wall until your balance is steady.
If you want to train the same single-leg pattern with a different emphasis or equipment, these are the common swaps:
Want more single-leg or bilateral options? Compare it with the squat and the deep, quad-focused ATG split squat.
The Bulgarian split squat fits leg day, lower-body accessory work or as a main single-leg movement. General starting points:
| Goal | Sets × reps | Notes |
|---|---|---|
| Strength | 3–4 × 6–8 / leg | Moderate load, longer rest, keep the front shin controlled and knee tracking |
| Muscle size | 3–4 × 8–12 / leg | Controlled tempo, full range, train close to failure on the last set per leg |
| Frequency | 1–2× / week | Progress by adding a rep or a little load when you hit the top of the range |
Want a full structured plan that includes single-leg work? See Push Pull Legs, and read up on RPE to gauge how hard each set should feel.
Log every Bulgarian split squat set — weight, reps per leg, and an RPE value — in LiftHero, and it charts your progressive overload and flags personal records so you can see each leg getting stronger over the weeks. You can add warm-up sets, supersets and rest-timer holds, then drop the movement into a saved routine so it's ready the next time you train. LiftHero records what you log; it doesn't diagnose your form.
It primarily works the quads and glutes of the front leg, with the hamstrings and adductors assisting and stabilizing. The core works to keep the torso upright and balanced.
Neither is strictly better. It trains each leg on its own, exposes imbalances, and needs far less load, while the back squat lets you load the most total weight. Many programs use both.
You can bias either. A more upright torso and a front foot closer to the bench emphasizes the quads; a slight forward lean and a longer stride emphasizes the glutes.
Start bodyweight, set the front foot slightly off the center line rather than directly in front, and hold a rack or wall until you're steady. Balance improves quickly with practice.
About 6–12 reps per leg across 3–4 sets per leg for strength and size. Because it's single-leg, you can use lighter loads than a bilateral squat, once or twice per week.
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This guide is educational and not medical advice. Consult a qualified coach or medical professional before starting or changing a training program.
By Meitar Lazimi, founder of LiftHero · Last updated July 9, 2026.