Bulgarian split squats for balance and stability
The Bulgarian split squat (BSS) is widely recognized for building lower-limb strength, but its impact on balance is equally impressive. Recent research confirms that unilateral exercises like the BSS effectively develop postural control and neuromuscular coordination [1]. This is especially relevant for athletes in sports requiring dynamic stability, such as basketball, where players must maintain balance during explosive movements [2]. Studies show that unilateral training, including contrast training protocols, significantly improves both agility and balance in college basketball athletes [3]. The use of unstable surfaces during unilateral exercises can further enhance core and lower-limb muscle activation, potentially boosting balance adaptations [4]. For those seeking to improve balance and reduce injury risk, the Bulgarian split squat offers a research-backed solution that combines strength with stability.
Practical Playbook
Set your split stance narrow and high
Place the rear foot on a bench or box, but keep the stance shorter than you think. Most lifters step too far forward, which shifts the load onto the front quad and makes balance a survival game. A narrower split keeps your center of mass over the middle of the foot. Try the rear toes at hip height or lower.
How do you prevent falling forward?
Lean back. Seriously. The instinct is to pitch forward toward the front knee. Instead drive your front heel into the floor and feel the glute engage. If you're still tipping, grab a light dumbbell in each hand and hold them at your sides as counterweights. That external mass buys your nervous system a second to figure out the motor pattern.
Control the descent like it owes you money
Count to three on the way down. Fast eccentrics wreck balance because your brain doesn't have time to adjust. Slow it down, hit the bottom, and pause for a beat. You'll instantly feel more stable and your glutes and hamstrings will actually do their job instead of the quad doing everything. Speed comes later.
Ditch the back leg support when you're ready
Once you can hold a steady split squat with no wobble, try a floor slide version. Place the rear foot on a towel or slider and let it drift back as you descend. That instability forces the stabilizers to fire harder. Do sets of 8 slow reps each side before adding weight again. Balance is a skill, not a gift.
Common Mistakes
- Mistake
- Placing your front foot too far forward, which shifts your weight onto your heel and makes balancing harder.
- Why
- This shifts load to the heel and reduces quad involvement, but also makes the back leg work less. It destabilizes the movement.
- Fix
- Adjust your front foot so that when you lower, your shin stays vertical, usually 1-2 foot lengths from the bench. Play with position until you feel stable without leaning.
- Mistake
- Looking down at your feet during the rep.
- Why
- Dropping your head shifts your center of gravity forward and makes you more likely to wobble. Your head is heavy, moving it changes your balance.
- Fix
- Pick a spot on the wall at eye level and stare at it through the set. Keep your chest tall.
- Mistake
- Not keeping the back leg's foot flexed (dorsiflexed) on the bench.
- Why
- A relaxed back foot creates instability because the ankle can collapse. You lose tension in the back leg.
- Fix
- Actively push the top of your back foot into the bench like you're trying to show someone the sole of your shoe. That tension locks in your stability.
- Mistake
- Using a bench or box that's too high or too low.
- Why
- If the surface is too high, you'll lean forward; too low, you'll sit back. Both mess with your balance and reduce the effectiveness.
- Fix
- Choose a surface so that when you stand, your back shin is roughly vertical. For most people, a 12-16 inch bench works.
- Mistake
- Rushing the eccentric (lowering) phase.
- Why
- Dropping fast means you can't adjust on the fly. Your stabilizers need time to fire to maintain balance.
- Fix
- Take a full 3 seconds to lower, pause briefly at the bottom, then drive up. Slow it down and you'll feel more rooted.
Sources we drew from
- 1
Topçu H et al. · 2025 · Scientific reports
Unilateral resistance exercises such as the Bulgarian Split Squat (BSS) are commonly used to develop lower-limb strength, postural control, and neuromuscular coordination, depending on training variables (e.g., load and intensity).
- 2Instability resistance training in collegiate basketball: a multitheoretical experimental study.Peer-reviewed
Li H et al. · 2026 · Frontiers in sports and active living
<h4>Background</h4>Basketball requires players to perform complex technical actions under conditions of dynamic instability.
- 3Effects of unilateral and bilateral contrast training on the lower limb sports ability of college basketball players.Peer-reviewed
Duan T et al. · 2024 · Frontiers in physiology
<b>Objective:</b> The purpose of this study was to compare the impact of unilateral (U) and bilateral (B) contrast training on lower limb explosiveness, agility, and balance in college basketball athletes.
- 4Effects of unstable loads and surfaces on core and lower limb muscle activation during Bulgarian squats.Peer-reviewed
Moon S et al. · 2026 · Journal of back and musculoskeletal rehabilitation
<b>Background:</b> Unstable training surfaces and loads are often used to enhance neuromuscular activation, but their comparative effects on core and lower limb muscle activity during unilateral exercises remain unclear.
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