Lunges vs Bulgarian Split Squats: Which Single-Leg Exercise Wins?

The Short Answer

Bulgarian split squats are the exercise everyone hates but nobody can argue with. They’re brutal, they’re humbling, and they build serious legs. Lunges are the more athletic option — dynamic, functional, and they’ll get your heart rate up in a way BSS won’t. If you want bigger quads and glutes, Bulgarians win. If you want to move better and build conditioning alongside your legs, lunges have the edge.

Muscles Worked

Muscle Group	Lunges	Bulgarian Split Squats
Quadriceps	Primary	Primary
Glutes	Primary	Primary (greater stretch)
Hamstrings	Secondary	Secondary
Adductors	Moderate	Moderate
Core / Balance	High	Very High
Calves	Low to Moderate	Low

Both exercises train the quads and glutes through a single-leg pattern. The Bulgarian split squat places the rear foot on a bench, which deepens the hip flexor stretch, increases the range of motion at the hip, and puts more demand on the front leg. Lunges distribute the load more evenly and add a dynamic stepping component.

Technique

Walking / Forward Lunges

1. Stand tall with dumbbells at your sides or a barbell on your back
2. Step forward with one leg, landing heel first
3. Lower your back knee towards the floor until both knees are at roughly 90 degrees
4. Your front knee should track over your toes but not excessively past them
5. Drive through your front foot to step forward into the next rep (walking) or return to standing (stationary)
6. Keep your torso upright throughout — don’t lean forward
7. Alternate legs each rep for walking lunges, or complete one side then switch for stationary

Bulgarian Split Squats

1. Stand about two feet in front of a bench, facing away from it
2. Place the top of your rear foot on the bench behind you (laces down)
3. Hold dumbbells at your sides or a barbell on your back
4. Lower your back knee towards the floor, keeping your front shin relatively vertical
5. Descend until your rear knee nearly touches the ground and you feel a deep stretch in the hip flexor
6. Drive through your front heel to return to the top
7. Complete all reps on one side before switching — this is not an alternating exercise

Pros and Cons

Lunges

Pros:

• Dynamic movement that builds coordination and athletic ability
• Walking lunges double as cardio — your heart rate will climb
• Multiple variations: forward, reverse, walking, lateral, curtsy
• Lower balance demand than BSS, making them more beginner-friendly

Cons:

• The stepping motion limits how heavy you can go
• Less time under tension per leg compared to BSS
• Walking lunges require space
• Knee stress from the deceleration on each step (reverse lunges are kinder)

Bulgarian Split Squats

Pros:

• Greater range of motion, especially for the glutes and hip flexors
• Constant tension on the working leg — no rest between reps
• Superior for building muscle due to deeper stretch and longer time under tension
• Stationary — you only need a bench and a small amount of floor space

Cons:

• Extremely challenging for balance, especially with heavier loads
• Setting up can be awkward — finding the right foot position takes practice
• The rear foot position can cause discomfort on the ankle or top of the foot
• Mentally brutal for high-rep sets (and that’s not an exaggeration)

When to Use Each

Use lunges when:

• You’re training for a sport that involves running, cutting, or change of direction
• You want a single-leg exercise that also challenges your cardiovascular system
• You’re a beginner and need to build single-leg confidence before progressing
• You want variety — reverse, lateral, and curtsy lunges each hit different muscles

Use Bulgarian split squats when:

• Quad and glute hypertrophy is your primary goal
• You want maximum progressive overload on a single-leg exercise
• You’re training in a small space with limited equipment
• You want to address left/right strength imbalances with precision

Programme both:

• Bulgarian split squats as your main single-leg exercise on leg day (3-4 sets of 8-12)
• Walking lunges as a finisher or on a separate conditioning day
• Track your BSS weight over time with your 1RM calculator to monitor progress

The Verdict

If your goal is building bigger, stronger legs, Bulgarian split squats are the better choice. The deeper range of motion, constant tension, and ability to load progressively make them a hypertrophy powerhouse. If your goal is athleticism, conditioning, or functional movement, lunges have the edge with their dynamic stepping pattern. For a complete single-leg programme, use BSS as your heavy hitter and lunges as your dynamic supplement.

Track both exercises and swap between them in PT Tracker.