Split Squat: How to Do It Correctly
Compared to bilateral squats, the split squat independently activates the quadriceps and gluteus maximus of each leg, measurably reducing inter-limb strength asymmetry.
- Level
- Beginner to advanced
- Equipment
- None
- Primary muscles
- Quadriceps, gluteus maximus
- Secondary muscles
- Rear leg, Front leg adductor magnus, Gastrocnemius and soleus
Step-by-step form
Setting up
Stand with feet hip-width apart, then step one foot approximately 60-90 cm forward, keeping the rear heel elevated off the floor with the back foot balanced on its ball. The front foot is fully flat on the ground; both feet remain stationary throughout the entire set. Hands rest on hips or hang at the sides, gaze fixed forward, and shoulder blades drawn down away from the ears. The pelvis is in neutral — neither anteriorly nor posteriorly tilted before the movement begins.
The movement
Inhaling, lower vertically over approximately 3 seconds until the rear knee is 2-3 cm from the floor. Hold the bottom position briefly for 1 second. Then drive through the front heel to simultaneously extend the hip and knee, returning to the start position in 2 seconds. The rear knee travels straight down throughout; the torso neither folds forward nor leans backward during either phase.
What stays in line
The front knee must track directly over the second and third toes and must not collapse inward (valgus) or flare outward. The rear hip should remain directly behind the front hip — no lateral pelvic shift to either side. Natural lumbar lordosis must be preserved along the spine; the ribcage should not flare or collapse. The front ankle stays in slight dorsiflexion, and the front knee should not travel more than 10 cm beyond the toe tip.
Breathing
Take a short 1-second preparatory inhale through the nose before initiating the descent, then continue a controlled inhale across the full 3-second lowering phase. Hold the breath for 1 second at the bottom pause. Exhale fully through the mouth or nose over the 2-second ascent. Every repetition should follow this 3-1-2 breathing cycle.
Common mistakes
1) Forward torso lean: Record yourself from the side and check whether your shoulder passes in front of your knee midway through the descent. 2) Front-knee valgus collapse: If your knee drifts over your big toe or foot arch rather than over the middle toes, the error is present. 3) Sliding the rear foot forward under fatigue: Mark the rear foot position with tape before starting a set and verify it has not shifted after each repetition.
Recommended sets and reps
- Recommended sets and reps
- Beginner: 8 reps × 2 sets per leg; intermediate: 12 reps × 3 sets per leg; advanced: 15 reps × 4 sets per leg with 3-1-2-0 tempo.
- Tempo
- Standard tempo: 3-1-2-0 — 3 seconds down, 1-second pause at the bottom, 2 seconds up, 0 seconds at the top. For quadriceps hypertrophy emphasis: 4-2-1-0. For power development phases: 2-0-1-0 with an explosive concentric.
- How often
- 2-3 sessions per week is appropriate; a minimum of 48 hours of recovery must separate two sessions targeting the same exercise. For high-volume (20+ reps per set) or heavily loaded variations, extend the inter-session recovery to a minimum of 72 hours.
- What it trains
- Compared to bilateral squats, the split squat independently activates the quadriceps and gluteus maximus of each leg, measurably reducing inter-limb strength asymmetry. It improves hip flexor extensibility and enhances single-leg balance proprioception. The movement transfers directly to single-leg support phases in sprinting and acceleration. Research indicates 6-8 weeks of consistent training produces measurable improvements in vertical jump height.
If something hurts
- Knee
- Sharp or compressive pain at the front of the knee during the descent typically indicates excessive patellar tendon load or valgus knee alignment. Immediately shorten your stance and consciously keep the knee behind the toe; if discomfort persists, end the set. Stop if pain is sharp or persistent and consult a qualified professional.
- Lower back
- Pain or compression in the lower back during the exercise most likely results from excessive forward trunk lean or hyperextension of the lumbar spine. Gently lift the sternum and reset the pelvis to neutral; if discomfort does not resolve within the set, stop immediately. Stop if pain is sharp or persistent and consult a qualified professional.
- Shoulder
- Shoulder pain is uncommon in the bodyweight split squat with hands on hips or hanging freely; however, in loaded variations using dumbbells or a barbell, shoulder tension may arise from grip position or bar placement. Drop the load and perform the movement bodyweight-only to determine whether the shoulder pain resolves. Stop if pain is sharp or persistent and consult a qualified professional.
- When to skip it
- Avoid with: acute ACL rupture or incomplete ACL reconstruction rehabilitation protocol; active meniscus tear; acute-phase patellofemoral syndrome; grade-2 or higher ankle sprain (compromises front-foot stability); acute hip labral tear; acute proximal hamstring avulsion fracture.
Where to go next
Moves that train the same thing — and, where this one sits on a ladder, the rungs either side of it.
References
- Distefano LJ, et al. Gluteal muscle activation during common therapeutic exercises. J Orthop Sports Phys Ther. 2009;39(7):532–540.
- Bull FC, et al. World Health Organization 2020 guidelines on physical activity and sedentary behaviour. Br J Sports Med. 2020;54(24):1451–1462.
- American College of Sports Medicine position stand. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009;41(3):687–708.
