EXERCISES

Bulgarian Split Squat: What Makes It Different From Lunges

The Bulgarian split squat is often called a harder version of the lunge - but the elevated rear foot changes more than just the difficulty. Here's how to do it correctly.

10 Reps Editorial

September 25, 20265 MIN READ

Exercise animation Bulgarian split squat - full range of motion

The Bulgarian split squat is often described as a "harder version" of the lunge - you already know both exercises briefly from our overview article "The 8 Best Leg Exercises for Stronger Legs". In reality, though, the elevated rear foot changes more than just the difficulty - it shifts the load almost entirely onto one leg. Here's how to perform the Bulgarian split squat correctly, what sets it apart from the classic lunge - and which mistakes cut into its effect.

STEP-BY-STEP FORM

1Starting position:
Stand a couple of steps in front of a flat bench, resting the top of your rear foot on it. Your front leg carries the main load, torso stays upright.
1Starting position: Stand a couple of steps in front of a flat bench, resting the top of your rear foot on it. Your front leg carries the main load, torso stays upright.
2Downward movement:
Lower until your front thigh is roughly parallel to the floor. Your rear knee sinks toward the floor under control.
2Downward movement: Lower until your front thigh is roughly parallel to the floor. Your rear knee sinks toward the floor under control.
3Bottom position:
Brief control, your front knee stays stable over your foot.
3Bottom position: Brief control, your front knee stays stable over your foot.
4Upward movement:
Press up through your front heel or midfoot until your front leg is extended again.
4Upward movement: Press up through your front heel or midfoot until your front leg is extended again.
5Breathing:
Inhale on the way down, exhale on the way up.
5Breathing: Inhale on the way down, exhale on the way up.

The elevated rear foot is there purely for balance - if it visibly starts carrying load, part of the exercise's unilateral effect gets lost.

Why this exercise is so effective - and how it differs from lunges

Like the classic lunge, the Bulgarian split squat primarily works the quadriceps and glutes of the front leg. The decisive difference lies in how the load is distributed:

Almost entirely one-sided load: Because the rear foot is elevated, practically only the front leg carries the weight - an even more consistent unilateral load than in standing lunges, where the rear leg still shares some of the load at times.

Greater range of motion at the hip: Because the rear foot is elevated, the front leg can work deeper and through a larger angle than in a lunge on flat ground - that demands more from the quadriceps and glutes.

A different kind of balance demand: The fixed rear foot on the bench requires less dynamic balance than a walking lunge, but more static stability in the front leg throughout the movement - not fundamentally easier or harder, just a different challenge.

Common mistakes

Standing too far forward: Your front knee then travels well past your toes and takes over too much of the movement.

Standing too close to the bench: Your torso tips too far forward instead of staying upright.

Rear leg visibly carrying load: Leaning too much on the rear leg reduces the actual training stimulus on the front leg.

Wrong foot position on the bench: Your rear foot should rest on the top of the foot, not the toes - otherwise the ankle takes on uncomfortable strain.

Variations

Holding dumbbells: The most common form of progression once your own bodyweight gets too light.

With a barbell on your back: Allows for higher loading capacity, somewhat more technically demanding to get in and out of position.

Front foot elevated: Placed on a small platform, for an even larger range of motion.

Rear foot on an unstable surface: Such as a stability ball or a TRX strap - for advanced stability demands.

Sets and reps

For the Bulgarian split squat, a range of roughly 3 sets of 8-12 reps per leg has become the established standard in training practice, with 1-3 reps left in reserve at the end of each set (RIR 1-3). This, too, is a general guideline, not a rigid rule.

OUR APPROACH AT 10 REPS

In the 10 Reps app, the Bulgarian split squat is part of several training plans, including lower-body-focused programs. The ProgressionEngine doesn't lock reps or added weight in place - it adjusts them based on your feedback from the last session. Train consistently and cleanly, and the load goes up; need more recovery, and you get it, without the plan grinding to a halt.

Built-in deload weeks also make sure load gets reduced automatically on a regular basis, so you don't have to keep track of that yourself.

Conclusion

The Bulgarian split squat isn't just a harder lunge - it's an exercise with its own character: almost entirely one-sided load, a greater range of motion, and a different kind of stability demand.

Alternate between both exercises and you train your leg muscles unilaterally from two different angles.

Part of our leg-exercises series - discover more essential leg exercises here: The 8 Best Leg Exercises for Stronger Legs.