Exercise guide
Squat With Ball Behind Back
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
This beginner-friendly squat variation uses a stability ball against a wall to provide lumbar support and guide proper squat mechanics, emphasizing quadriceps and glute development.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Place a stability ball between your lower back (lumbar spine) and a flat wall.
- Stand with your feet shoulder-width apart, positioned about 12 to 18 inches in front of your hips.
- Lean back slightly so your weight is supported by the ball, keeping your chest up and shoulders relaxed.
How to do it
- Inhale and slowly lower your hips toward the floor by bending at the knees and hips, allowing the ball to roll up your back.
- Continue the descent until your thighs are at least parallel to the floor, ensuring your knees stay aligned with your toes.
- Exhale and drive through your heels to push yourself back to the starting position.
- Maintain a controlled 3-second eccentric (lowering) phase and a 1-second concentric (rising) phase.
Form checklist
- Keep your torso upright throughout the movement; do not lean forward away from the ball.
- Ensure your knees do not track past your toes at the bottom of the squat.
- Keep your feet flat on the ground, focusing weight distribution on the mid-foot and heels.
- Maintain constant pressure against the ball to ensure it stays in place.
Pro tips
- To increase glute activation, focus on 'sitting back' into the ball rather than just dropping straight down.
- At the top of the movement, squeeze your glutes hard without locking out your knees to maintain tension.
Make it harder
- Hold a pair of dumbbells at your sides or a single kettlebell in a goblet position to add resistance.
- Incorporate a 3-second pause at the bottom of each rep to increase time under tension.
Frequently asked
- What muscles does the squat with ball behind back work?
- The squat with ball behind back primarily targets the glutes and quadriceps, and also works the abs, erector spinae, and obliques as secondary muscles.
- What equipment do you need for the squat with ball behind back?
- The squat with ball behind back uses stability ball.
- Is the squat with ball behind back good for beginners?
- The squat with ball behind back is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.