Barbell Back Squat
The king of lower-body lifts. Nothing else builds quads, glutes and full-body tension like a bar on your back and a deep squat under load.

What is the barbell back squat?
The barbell back squat is a bilateral lower-body lift where you sit a loaded bar across your upper back and squat down until your hip crease drops below your knee, then drive back up. Two variants dominate: high-bar, with the bar on the traps and a more vertical torso, biased toward quads; low-bar, with the bar on the rear delts and a forward torso lean, biased toward hips and posterior chain. For hybrid athletes, high-bar transfers best to running and Hyrox-style movements. Train it heavy, train it deep, and it will rebuild every leg-driven station you face.
How to do the barbell back squat
Common mistakes
- Cutting depth. Half-squats build half-legs. Earn the depth with mobility work and lighter loads before you chase the number.
- Knees caving in. Valgus collapse leaks force and stresses your knees. Cue "spread the floor" and drop the load if you can't fix it under weight.
- Holding your breath wrong. Breathe in at the top, brace, hold all the way through the rep. Exhaling at the bottom kills your bracing and your back pays.
- Bouncing out of the hole. Uncontrolled bounce off the hamstrings looks fast but skips the hardest part of the lift. Control the descent, drive the ascent.
Variations & progressions
Goblet squat or box squat
Hold a kettlebell at the chest, or squat to a box at parallel. Both groove depth and bracing without loading the spine heavily.
Pause back squat
Hold the bottom for 2 to 3 seconds. Kills the bounce, exposes weakness, and builds brutal starting strength out of the hole.
Front squat or Bulgarian split squat
Front-rack a clean for unilateral quad work, or load split squats heavy. Both build the same leg-drive engine with less spinal load.
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 |
|---|---|---|---|
| Technique | 5 × 5 @ 60% 1RM | Light, perfect form | 2 min |
| Strength | 5 × 5 @ 80-85% 1RM | Heavy | 3-4 min |
| Hypertrophy | 4 × 10 @ 65-70% 1RM | Moderate | 90-120 s |
Add the barbell back squat to your ZON program
Track load, distance and progression in one timeline.




