Squat technique guide: depth, bar position and common mistakes

The squat is the foundational lower-body strength movement and appears in almost every performance program. However, the “correct squat” isn't a single template; it varies with body proportions, mobility and goals. In this guide, we cover technique principles, variations and correction methods.

Basic setup

Foot stance

Feet shoulder-width apart or slightly wider, toes turned out 15–30 degrees. Because hip structure differs from person to person, the “right” width is individual: try a few options to find the deepest and most comfortable position. Weight is distributed across three points of the foot (big toe, little toe, heel).

Bar position

• High bar: Bar on the traps, more upright torso, quad dominant. The most common choice for athletes.
• Low bar: Bar on the rear delts, torso leaning further forward, hip and posterior chain dominant. Allows heavier loads; common in powerlifting.
• Front squat: Bar on the front of the shoulders, most upright torso, high demand on trunk stability. Knee dominant and transfers to Olympic lifting.
• Safety bar: Ideal for athletes with limited shoulder mobility; reduces forward lean of the torso.

Breathing and trunk pressure

Before descending, take a deep breath and expand it around the abdomen (Valsalva maneuver). This creates the internal pressure that stabilizes the spine. Exhale after passing the hardest point of the movement. Those with high blood pressure or cardiovascular issues should consult a physician about this technique.

Executing the movement

1. Initiate from the hips and knees simultaneously; only pushing the hips back (the good morning mistake) or only pushing the knees forward is not preferred.
2. The knees track in line with the toes; caving inward (valgus) is controlled.
3. The torso angle stays constant throughout the descent.
4. The heels stay on the floor; the heels should not rise first on the way up.
5. On the way up, the hips and shoulders rise at the same speed.

The depth debate

The general reference is for the hip crease to drop below the top of the knee (parallel or below). However, depth is increased only as long as a neutral spine can be maintained. The point where the lower back starts to round (“butt wink”) is the limit of safe depth for that day.

Choosing depth for athletes:

Common mistakes and how to fix them

1. Knees caving in

Cause: Weak hip abductors and external rotators, lack of motor control.
Fix: Banded squats (mini band above the knees), lateral band walks, single-leg work, reducing load to groove the technique.

2. Heels lifting

Cause: Limited ankle dorsiflexion.
Fix: Ankle mobility work, temporarily using weightlifting shoes or heel elevation, heels-elevated goblet squat.

3. Excessive forward lean

Cause: Weak back extensors, insufficient quad strength or a mismatched bar position.
Fix: Teaching an upright torso with front squats and goblet squats, back strength work, tempo squats.

4. Lower-back rounding (butt wink)

Cause: Hip mobility or forcing depth.
Fix: Bring depth back into a safe range; work on hip mobility and trunk stability.

5. Asymmetric ascent

Cause: Strength asymmetry or past injury.
Fix: Single-leg work, video monitoring, and a physiotherapist assessment if needed.

Which variation for which athlete?

• Long-femured / tall athlete: Safety bar squat or trap bar deadlift; reduces excessive forward lean.
• Limited shoulder mobility: Safety bar or goblet squat.
• History of lower-back pain: Front squat or split squat variations, low axial load.
• Knee issues: Depth control with box squats, hip-dominant variations.
• Young athlete: Start with goblet squats, then move to the bar once technique is solid.

How necessary is the squat?

The squat is a powerful tool, but it isn't mandatory. For some athletes, the barbell squat isn't suitable due to anatomy or injury history. In that case, similar strength gains can be achieved with alternatives like the trap bar deadlift, Bulgarian split squat and belt squat. What matters isn't the name of the movement but stimulating the muscle groups with the right load. Single-leg work is a valuable complement in this regard.

Frequently asked questions