Heel-elevated deep squat (slant board squat)
With the heels raised on a slant board or small plates, the squat goes deep with the knees travelling forward: the raised heels ask less bend of the ankles.
Deep squat family
Heel-elevated deep squat (slant board squat)
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Source-researched guide. Clinical review is pending.
How to move
- Stand with the heels on a slant board or small plates, the feet about hip-width apart.
- Squat as deep as the knees comfortably allow, letting them travel forward past the toes while the chest stays fairly upright.
- Stand back up under control.
Form cues
- Keep the whole foot pressing down.
- Go only as deep as stays comfortable for the knees.
Practice and cautions
No universal dose is assigned. Choose a manageable amount for your current capacity, leave room for controlled repetitions, and allow recovery. A clinician’s individual plan takes priority.
Kneecap pain that lingers into the next day means you went too deep or too heavy too soon. With a prolapse, get advice from a pelvic health physiotherapist before heavy lifts or deep squats, and ease off if you feel heaviness, dragging or a bulge. This is movement education, not an assessment or treatment prescription. Stop for sharp or increasing pain, dizziness, numbness or tingling; seek individual guidance for symptoms, injury or restrictions.
Sources and review status
Sources support the educational description; they do not establish that this exercise is suitable for you.
- Applied Sciences 2025 · Heel heights and squatting stability (systematic review: raised heels cut trunk lean and centre-of-pressure shift) ↗
- Kasuyama 2009 · Ankle dorsiflexion was most strongly linked to squatting deep with the heels down (71 men, J Phys Ther Sci) ↗
No variation is labeled clinically validated.
What it works
Muscles
Main: Quads. Also: Glutes, Adductors.
Anatomy: Sartorius, Quadriceps, Rectus femoris, Vastus medialis, Vastus lateralis.
Equipment
A step
Level
Intermediate. See the easier and harder options above.
Workouts that use it
- Knee strengthening workout: from first steps to full range · 25 min
- Squat technique workout · 25 min
- Field hockey warm-up: the Warming-up Hockey sample session · 12 min
- Strength workout for dancers: feet, hips, hamstrings, trunk and landings · 55 min
- Sissy squat progression: from the reverse Nordic to the weighted sissy squat · 25 min
- Overhead squat progression: ankle, hip and shoulder mobility, then the dowel and the bar · 25 min
Pain guides that use it
Part of a staged plan, with when to get help first.
- Quadriceps tendinopathy (quad tendonitis): pain above the kneecap, and a tendon loading plan
- Anterior ankle impingement (footballer's ankle): pain at the front of the ankle when you squat, lunge or climb
- Knee pain when squatting: what's likely, what to change today and how to build back to depth
- Ankle pain when squatting: the front of the ankle, an old sprain, the Achilles and what helps
Guides that use it
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Questions people ask
What muscles does the Heel-elevated deep squat (slant board squat) work?
Mainly the quads, with help from the glutes and adductors.
What equipment do I need for the Heel-elevated deep squat (slant board squat)?
A step.
Is the Heel-elevated deep squat (slant board squat) good for beginners?
It is graded intermediate. If it is too hard right now, start with the Bodyweight squat.
What is an easier alternative to the Heel-elevated deep squat (slant board squat)?
Try the Bodyweight squat or the Resistance band squat. It works similar muscles at a lower grade.
How do I make the Heel-elevated deep squat (slant board squat) harder?
Progress to the Deep squat hold or the Pistol squat. Follow that guide’s technique and any stated timing.