Exercise guide
Bulgarian Split Squat With Pillow And StepBox
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
This unilateral lower-body powerhouse targets the glutes and quads while improving hip mobility and balance. Using a pillow on the StepBox provides cushioning for the rear foot, allowing for a more comfortable and focused range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Place a StepBox behind you and position a pillow on top of it for cushioning.
- Stand approximately two feet in front of the box, facing away from it.
- Reach one foot back and place the top of your foot (laces down) onto the pillow.
- Position your front foot so that when you lunge, your knee stays aligned over your ankle.
How to do it
- Inhale and lower your hips vertically by bending both knees, keeping your chest up and core braced.
- Descend until your front thigh is roughly parallel to the floor, ensuring your back knee tracks toward the ground.
- Exhale and drive through the mid-foot of your front leg to return to the starting position.
- Maintain a controlled tempo, taking 2-3 seconds to lower and 1 second to rise.
Form checklist
- Keep your front heel firmly planted on the ground at all times.
- Ensure your front knee does not cave inward; keep it tracking over your toes.
- Maintain a slight forward lean in the torso to better engage the glutes.
- Avoid putting excessive weight or 'pushing off' with the rear foot.
Pro tips
- To maximize glute activation, take a slightly wider stance and lean your torso further forward.
- Focus on 'pushing the floor away' with your front leg rather than just standing up.
- Keep your gaze fixed on a point 5-10 feet in front of you to help maintain balance.
Make it harder
- Add a 2-second pause at the bottom of each rep to increase time under tension.
- Incorporate a '1.5 rep' style by going all the way down, halfway up, back down, and then all the way up.
Frequently asked
- What muscles does the bulgarian split squat with pillow and stepbox work?
- The bulgarian split squat with pillow and stepbox primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the abs, hip flexors, and obliques as secondary muscles.
- What equipment do you need for the bulgarian split squat with pillow and stepbox?
- The bulgarian split squat with pillow and stepbox requires no equipment — just your body weight.
- Is the bulgarian split squat with pillow and stepbox good for beginners?
- The bulgarian split squat with pillow and stepbox is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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