Half Squat
A partial-range squat that lets you overload the top half of the lift, building lockout strength, tendon stiffness and confidence under supramaximal loads.

What is the half squat?
The half squat is a back squat stopped roughly at the point where the thighs are 45 degrees above parallel. Because the lever is shorter, you can handle 110 to 130 percent of your full-squat max. It's used to train the quad lockout, reinforce bracing under heavy bars, and build tendon resilience for sprinters and jumpers. It is an accessory, never a replacement for full-range work.
How to do the half squat
Common mistakes
- Loading 200 percent of your full squat. The shorter lever tempts ego loading. Spinal compression scales linearly with load, your tolerance does not.
- Bouncing out of the bottom. A stretch-reflex bounce skips the working range. Pause one count to keep it a strength exercise.
- Using it as your only squat. Partial range builds partial strength. Always pair half squats with full-range work in the same block.
- Sloppy depth Each rep drifting deeper or shallower changes the stimulus. Use pins or a box to lock the depth.
Variations & progressions
Box half squat
Place a tall box behind you and tap it lightly to standardise depth and teach control.
Anderson half squat
Start from pins at half depth, dead-stop reps with no eccentric assist. Brutally honest.
Belt squat partial
Use a belt squat or trap bar to overload the top half without spinal compression.
How to program it
Three protocols by goal. Pick one per cycle and aim for progression on load or distance.
| Goal | Sets × Distance | Load | Rest |
|---|---|---|---|
| Lockout strength | 5 × 3 | 110-120% of full-squat 1RM | 3 min |
| Overload tolerance | 3 × 2 | 125-130% of full-squat 1RM | 4 min |
| Hypertrophy at the top | 4 × 8 | 90% of full-squat 1RM | 2 min |
Add the half squat to your ZON program
Track load, distance and progression in one timeline.




