Bulgarian Split Squat: How to Do It, Muscles and Benefits

The Bulgarian split squat, also called the rear-foot-elevated split squat, is a single-leg squat where your back foot rests on a bench behind you while your front leg does almost all of the work. By loading one leg at a time, it builds serious quad and glute strength, exposes the imbalance between your left and right sides, and challenges your balance in a way that two-legged squats never do. You need very little kit, a bench or sofa and a pair of dumbbells will do, which makes it one of the best lower-body exercises for training at home. Here is how to do it properly, the muscles it hits, and how to get the most from it.

How to do a Bulgarian split squat

You need a knee-height bench, box or sturdy chair behind you, and optionally a dumbbell in each hand. Get the bodyweight version smooth before you add load.

1. Set up the back foot. Stand a stride-length in front of the bench. Reach one foot back and rest it on the bench, either laces down (top of the foot flat) or balls of the foot on the edge, whichever feels steadier. The back leg is a kickstand, not a driver.
2. Find your stride. Hop the front foot forward until, when you lower down, your front shin stays roughly vertical and your knee sits over your mid-foot. Too close and your knee shoots past your toes, too far and you will feel a pull at the front of your back hip.
3. Brace and set your torso. Stand tall, take a breath into your belly and tighten your abs. A slight forward lean from the hips is fine and tends to bias the glutes, but do not round your back.
4. Lower under control. Bend the front knee and sink straight down, letting the back knee drop towards the floor. Keep the front knee tracking out over your toes, not caving in. Go down until your front thigh is about parallel, or your back knee gently kisses the floor.
5. Drive back up. Push through your whole front foot, with the weight in your mid-foot and heel, and stand tall. Keep nearly all your weight over the front leg the whole time. Finish all reps on one side, then swap.

Muscles worked

The Bulgarian split squat is a front-leg exercise with a big balance and core tax on top, because standing on one foot forces every stabiliser around your hip and ankle to work.

• Quadriceps. The muscles on the front of your front thigh control the descent and drive you back up. A more upright torso pushes more work onto the quads.
• Glutes. Your gluteus maximus extends the hip out of the bottom and is heavily involved, especially if you lean forward slightly. A biomechanics study found the movement recruits the glutes more than a back squat does, making it a more hip-dominant lift (Biomechanical Differences Between the Bulgarian Split-Squat and Back Squat).
• Hamstrings and adductors. The hamstrings assist hip extension and help stabilise the knee, while the adductors (inner thigh) work hard to keep the front knee tracking and to steady the whole movement.
• Calves, core and hip stabilisers. Your calf and the small muscles around the front ankle fight to keep you balanced, while your abs and lower back brace against the offset load to stop you toppling.

That single-leg demand is why a pair of adjustable dumbbells or a couple of kettlebells goes a long way here, you rarely need much weight to make the movement brutal.

Benefits

• It exposes and fixes side-to-side imbalances. Because each leg trains on its own, your stronger side cannot bail out the weaker one. A meta-analysis of unilateral versus bilateral training found single-leg work is particularly good for building unilateral strength and reducing the imbalance between limbs (Effect of unilateral training and bilateral training on physical performance).
• It builds strength with light loads. One leg carries most of your bodyweight, so you reach a hard training effect without the spinal load of a heavy barbell. That makes it kind to your lower back.
• It is easier on the knee than a back squat. The same biomechanics study found smaller peak knee displacement in the split squat than the back squat, which is one reason coaches use it to load the legs while keeping knee demands modest.
• It trains balance and stability. Standing on one foot recruits the hip and ankle stabilisers that ordinary squats skip, which carries over to running, sport and everyday life.
• It needs barely any kit. A bench and your bodyweight is enough to start, and a couple of dumbbells covers you for months. The NHS recommends muscle-strengthening work for all the major muscle groups, including legs and hips, on at least two days a week, and this single move ticks several of those boxes at once.

Common mistakes

Pushing off the back foot. The back leg is a kickstand, not an engine. If you feel the burn in your back thigh or the front of your back hip, shift your weight forward and drive up through the front heel so the front leg does the work.

A stride that is too short. Setting the front foot too close lets the knee shoot well past the toes and the heel lift. Step the front foot further forward until your shin can stay close to vertical and your whole foot stays planted.

The front knee caving in. Letting the knee drop inward wastes power and nags the joint. Actively spread the floor and push the knee out in line with your toes through every rep.

Going too heavy too soon. Balance fails long before your muscles do at first. Master clean, controlled bodyweight reps, then add small dumbbells before chasing big numbers.

Mismatched legs. It is easy to grind out more reps on your strong side and quietly let the weak side lag, which defeats the point. Train the weaker leg first and let it set the rep and weight target for both sides.

Variations

Once the standard version feels solid, use these to keep progressing or to shift the emphasis.

• Dumbbell Bulgarian split squat. Hold a dumbbell in each hand at your sides, or a single one in the goblet position against your chest. The goblet hold keeps you more upright and a touch more quad-focused, and is great for balance.
• Heels-elevated (more quad). Pop a small plate or wedge under your front heel and stay tall. This shifts more load onto the quad and suits anyone with tight ankles.
• Forward-lean (more glute). Hinge a little further forward from the hips and reach the chest towards the front thigh. The increased trunk lean drives more glute and hamstring involvement.
• Tempo split squat. Take 3 to 4 seconds to lower, pause for a beat at the bottom, then stand. Slowing it down makes a light weight feel heavy and cements your balance.
• Deficit split squat. Once strong, stand the front foot on a low platform so you can drop deeper. Only add this when your mobility and control are good.

If single-leg balance is still a struggle, build the base first with the two-footed goblet squat, then come back. For more lower-body movements, browse our workouts hub.

Sets and reps

A simple plan that works for most people:

• Strength and muscle: 3 to 4 sets of 8 to 12 reps per leg, 1 to 2 times a week. Rest 60 to 90 seconds.
• Balance and learning: 2 to 3 sets of 6 to 8 slow bodyweight reps per leg, focusing only on staying steady and controlling the descent.
• Conditioning: 2 to 3 sets of 15 reps per leg with light dumbbells and shorter rests.

Add weight only once you can hit the top of your rep range on both legs with clean form. Because the working leg shoulders so much of your bodyweight, small jumps go a long way.

Recommended reads

1. The best adjustable dumbbells in the UK
2. The best kettlebells in the UK
3. Goblet squat: how to do it, muscles and benefits
4. More workouts and exercise guides