Bulgarian split squats mainly work your quads and glutes , with strong help from your hamstrings, calves, and core for balance and stability.

Quick Scoop

Bulgarian split squats are a single-leg squat variation where your back foot is elevated on a bench or box. Because most of your weight is on the front leg, they hit the same big lower-body muscles as regular squats but with extra balance and stability demands.

Main muscles worked

  • Quadriceps (front of the thigh): primary driver on the front leg, especially as you push out of the bottom of the squat.
  • Glutes (butt): heavily engaged as your hips move back and then extend to stand up, often where you feel the most soreness.
  • Hamstrings: assist in hip extension and help control the descent.
  • Adductors (inner thighs): help stabilize the leg and support the movement path.
  • Calves: help stabilize the ankle and assist with balance.
  • Core (abs and spinal erectors): work isometrically to keep your torso upright and stable throughout the set.

How stance changes emphasis

  • Longer stride / more forward foot: more glute and hamstring emphasis because you sit back into the hip more.
  • Shorter stride / more upright torso: more quad emphasis, similar to a front squat feeling.
  • Higher rear foot: increases loading on the front leg, often intensifying quads and glutes.

Think of it this way: the more you feel your hips moving back and stretching, the more glute-focused the Bulgarian split squat becomes.

Why lifters love them now

In 2024–2026, Bulgarian split squats have stayed popular in strength and hypertrophy programs because they:

  • Build leg strength and muscle without needing very heavy spinal loading like barbell back squats.
  • Help fix left–right imbalances since each leg works on its own.
  • Challenge balance and coordination, which carries over to sports and everyday movement.

Mini how-to (quick form cues)

  • Keep 70–85% of your weight on the front leg; the rear leg is mainly for support.
  • Lower with control until your back knee is close to the floor, torso tall, front knee tracking over the toes.
  • Push through the middle of your front foot to stand up, squeezing the glute at the top.

TL;DR: Bulgarian split squats target quads and glutes first, with hamstrings, adductors, calves, and core all heavily involved for strength, balance, and control.

Information gathered from public forums or data available on the internet and portrayed here.