Exercise guide · evidence-graded

Bulgarian Split Squat

The Bulgarian split squat is a single-leg squat with the back foot raised on a bench behind you and a dumbbell in each hand. It works the front leg's quadriceps and glutes through a long range, with the hip muscles working hard to keep you balanced, and it is one of the most widely used loaded single-leg exercises.

Also called: BSS, Rear Foot Elevated Split Squat, Bulgarian Split Squats, Dumbbell Bulgarian Split Squat · Equipment: dumbbell · Pattern: squat

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How to do it

Step by step

  1. Stand about a stride in front of a flat bench, holding a dumbbell in each hand at your sides with palms facing in.
  2. Reach one foot back and rest the top of that foot, or the ball of the foot, on the bench. Keep the front foot flat and hip-width to the side of the back foot.
  3. Set the front foot far enough forward that the front knee is at about 90° when the back knee nears the floor. Brace your trunk and keep the hips square.
  4. Bend the front knee and sink straight down until the back knee is just above the floor. Let the front knee travel forward over the middle toes while the front heel stays down.
  5. Drive through the whole front foot to stand back up, keeping the dumbbells hanging straight at your sides.
  6. Finish each rep with the front leg nearly straight, then re-brace before the next rep.
  7. Complete all reps on one leg, step the back foot down off the bench, then switch legs.
Coaching cues
  • Sink straight down, back knee towards the floor
  • Drive through the whole front foot
  • Front knee over the middle toes
  • Back foot rests, front leg works
  • Dumbbells hang straight, chest tall
  • Hips square to the front

In VALDA, these cues are one tap away on the exercise while you train.

Muscles worked

What it trains

MuscleRoleEvidence
Quadriceps: vastus lateralisPrime moverC
Quadriceps: vastus medialisPrime moverC
Gluteus maximusPrime moverC
Quadriceps: rectus femorisSecondaryC
Adductor magnusSecondaryC
Hamstrings: biceps femoris (long head)SecondaryD
Gluteus medius/minimusStabiliserC
Forearm flexorsStabiliserD
Trapezius: upperStabiliserD
Hip flexorsDynamic stabiliserD

Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.

Common faults

What goes wrong, and the fix

Front foot too close to the bench

Fix: Set the front foot out so the front knee is at about 90° at the bottom, heel down.

Front foot too far from the bench

Fix: Bring the front foot in until the back knee can drop straight down under your hip.

Pushing off the back foot

Fix: Keep the back foot relaxed on the bench and drive only through the front foot.

Front knee caving inward

Fix: Keep the front knee tracking over the middle toes for the whole rep.

Leaning towards the working leg

Fix: Brace, stay tall and let the dumbbells hang straight down at your sides.

Cutting depth short

Fix: Sink until the back knee is just above the floor on every rep.

Programming

What the research says

Muscle growth · first choiceGeneral fitness · first choicePowerStrengthRehab & prehabSport performanceEnduranceFat loss & conditioning

  • Single-leg transfer — A meta-analysis of 14 training studies found single-leg training carried over more to single-leg jumping, and two-leg training more to two-leg strength. Neither showed a clear edge for sprinting or change of direction.
  • Load by goal — Research comparing loads finds maximal strength favours heavier loads, while muscle growth is similar across a wide range of loads when sets are taken close to failure. Many lifters find grip limits heavy dumbbell sets before the legs do, and some use lifting straps.
  • Effort — Studies show sets that finish a few reps short of failure capture most of the growth benefit, and true failure adds only a small extra return.
  • Depth — In a 10-week squat study, full-depth training grew the glutes and inner thighs more than half-depth training, while front-thigh growth was similar. No study has compared Bulgarian split squat depths directly.
  • Volume and frequency — Research links more weekly sets for a muscle to more growth, with diminishing returns. Around 10 or more hard sets a week has been associated with more growth than fewer than 5, and training a muscle about twice a week is a common way to spread that volume.
  • Rest and sides — In trained lifters, rests of about 3 minutes have produced greater strength and size gains than 1-minute rests. A common approach is to finish all reps on one leg, switch, then rest after both sides.
Alternatives · VALDA FLEX

Swap it mid-workout

With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.

Log the bulgarian split squat in VALDA, with these cues one tap away while you train and your history for it in one place.

General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.