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Jump Squat
Positions & Range of Motion
- Start
- standing with feet shoulder-width apart, arms ready to swing back
- End
- full triple extension of ankles, knees, and hips at the peak of an explosive vertical jump, arms thrown overhead, then a soft landing reabsorbed into the same squat depth
- Range of Motion
- quarter-to-half squat (~0–60° knee flexion) driving into full hip/knee/ankle extension and airborne, then re-flexing to absorb the landing
How to Perform
Stand with feet shoulder-width apart, descend quickly into a quarter-to-half squat with arms swinging back, then explosively extend the hips, knees, and ankles to jump vertically as high as possible. Land softly toes-to-heels into the same squat depth, absorbing force with bent hips and knees, then reset or immediately rebound depending on the training goal.
Opens a YouTube search for “Jump Squat”
Coaching Cues
- 1
Push the floor away and jump toward the ceiling as fast as you can
(external) - 2
Land as quietly as possible — soft like landing on eggshells
(external) - 3
Keep your knees tracking over your toes on takeoff and landing — no caving in
(internal) - 4
Swing your arms back on the dip, then throw them up as you jump
(external)
Evidence-Based Dosing & EMG Data
Consistent with plyometric training guidelines: 2-3 sessions per week on non-consecutive days, 3-5 sets of 3-8 maximal-effort reps, with full recovery (60-180 s) between sets to preserve jump quality; keep total session volume modest (roughly 40-100 ground contacts) for lower-extremity plyometrics. Loaded variations for peak power development are typically performed at 0-30% of squat 1RM.
Surface EMG and biomechanics studies of countermovement and jump squats show high activation of the quadriceps (vastus lateralis and medialis) and gluteus maximus during the propulsion phase, with the gastrocnemius and soleus contributing strongly in the final portion of triple extension. The hamstrings act biarticularly, assisting hip extension while transferring energy across the knee. Landing imposes large eccentric demands on the quadriceps and plantarflexors, and the tibialis anterior pre-activates prior to ground contact. Trunk musculature (erector spinae, abdominals) provides stiffness for force transfer, and gluteus medius activity is important for frontal-plane knee control, a common focus in ACL injury-prevention programs.
Muscles Involved (13)
Primary Movers
Secondary Movers
Stabilizers
Lengthened / Stretched
Easier Variations ↓
Squat to Heel Raise
Perform a bodyweight squat and rise onto the toes at the top without leaving the ground; grooves the triple-extension pattern with no flight or landing impact.
Box Jump
Jump onto an elevated box so the landing occurs near the jump apex, dramatically reducing eccentric landing forces while keeping the explosive takeoff.
Harder Variations ↑
Loaded Jump Squat
Add external load (dumbbells, trap bar, or barbell at roughly 0-30% of squat 1RM) to increase power demands while preserving movement velocity.
Depth Jump
Step off a 20-40 cm box and immediately rebound into a maximal vertical jump on ground contact, increasing stretch-shortening-cycle intensity and reactive strength demand.
Target Movements (6)
Why This Exercise Matters
Everyday activities this exercise helps you do — essential means it directly trains the capacity the task needs:
Goals This Helps With
Rehab, performance, prevention, and mobility goals this exercise supports — essential means it's a cornerstone:
Research Notes
claude-researched 2026-07; muscle/movement links validated against the roster. Adversarial clinical verification pending — do not promote past needs_review without human review.