TRAINAQ

Quads exercise

Box Squat (Bodyweight, to a Bench)How to do it, with form in numbers

Main muscles
Quads, Glutes
Also works
Hamstrings
Equipment
Bench
Level
Beginner
Our own 3D demo

How to do it

How do you do the Box Squat?

  1. Stand in front of a bench, feet shoulder-width apart.
  2. Push your hips back and lift your arms forward as you lower.
  3. Touch the bench lightly with your backside; do not sit down fully.
  4. Push through your whole foot to stand up tall.

Cues

  • Reach forward as you sit back.
  • Touch and go; keep your weight in your feet.
  • Knees follow your toes.

Common mistakes

  • Dropping onto the bench instead of lowering slowly.
  • Rocking back and swinging up to stand.
  • Letting your knees fall inward as you rise.

Form in detail

What does good form look like?

Starting position

A flat bench (or sturdy chair without arms) stands just behind the heels, so the backside meets its front edge when the thighs are about parallel to the floor. Heels about shoulder-width apart, toes turned out a little, whole foot flat. Stand tall, arms relaxed at the sides, eyes forward. This is a sit-to-stand pattern for beginners and older clients.

The movement

Push the hips back and down while the knees bend forward. As the hips go back, the arms rise forward to about shoulder height to balance the body. Lower under control until the backside lightly touches the bench: no dropping onto it, no rocking back and no relaxing on it. Hold the touch for a moment with the weight still in the feet, then lean the chest slightly forward and stand up by pushing through the whole foot. The arms lower to the sides as the body reaches standing. The knees stay in line with the toes and the heels stay down.

End position

Bottom: backside resting lightly on the bench, thighs about parallel. A standard 43–45 cm bench or chair (the CDC test chair is 17 in) stops the thighs a little above parallel, which is the easier starting point for most beginners.

Tempo

1.8 s down, 0.5 s light touch, 1.6 s up, short stand at the top.

Form in numbers

What are the angles and distances?

MeasureTargetGood rangeSources
Stance, heel to heel1.0 × shoulder width0.9–1.2 ×[3][4]
Toe-out, each foot10°0–20°[3][4]
Thigh angle from vertical at the bottom90° (parallel)80–95°[3]
Shin lean from vertical at the bottom33°25–38°
Arm elevation at the bottom88° (shoulder height)70–95°[1]
Weight on the bench during the touchlight touch, feet loadedno visible sag
Trunk rocking back on the bench0°≤ 3°
Heel lift0 cm0 cm[3]

The targets our 3D demo was built to, from the references below. Bodies differ, so treat the ranges as a guide for your own build.

For coaches

Use this demo in your clients’ programs

The Box Squat is in Trainaq’s exercise library. Add it to a workout, and your client sees this demo in the free Trainaq app above the sets they log.

Sources

Sources

  1. ACE, Training Progressions for Obese Clients
  2. CDC STEADI, Assessment: 30-Second Chair Stand
  3. ACE, Bodyweight Squat
  4. Myer et al. 2014, Strength Cond J, "The back squat: a proposed assessment of functional deficits and technical factors that limit performance"

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