TRAINAQ

Adductors exercise

Smith Machine Sumo SquatHow to do it, with form in numbers

Main muscles
Adductors, Glutes
Also works
Quads
Equipment
Smith
Level
Beginner
Our own 3D demo

How to do it

How do you do the Smith Machine Sumo Squat?

  1. Set the Smith bar on your upper back and grip it just outside your shoulders.
  2. Step your feet wide, well outside your shoulders, toes turned out, a little in front of the bar.
  3. Unlock the bar and sit your hips straight down, pushing your knees out over your toes.
  4. Squat until your thighs are level with the floor.
  5. Drive up through your whole foot, keeping your knees out, and stand tall.

Cues

  • Knees out over the toes.
  • Sit straight down between your heels.
  • Chest up, bar on your upper back.

Common mistakes

  • Letting the knees cave in as you stand.
  • Turning the toes out further than the knees can follow.
  • Feet too far forward, so the hips shoot back.

Form in detail

What does good form look like?

The version in our demo

A back squat on the Smith machine's fixed vertical track with a sumo stance (feet very wide, toes turned well out), so the knees travel out over the toes and the inner thighs and glutes do more of the work. The track keeps the bar path vertical; the feet sit a few cm in front of the bar line.

Starting position

Bar high on the upper back (on the traps, not the neck), grip just outside the shoulders. Heels about 1.9 × shoulder width apart, toes turned out about 40°, feet a few cm ahead of the bar line. Stand tall, brace.

The movement

Sit the hips straight down between the heels while pushing the knees out in line with the toes, chest up. Squat until the hip crease is level with or just below the top of the knee, then drive up through the whole foot, knees still out, to stand tall.

Breathing

Big breath and brace at the top, hold it down and through the bottom, breathe out near the top.

Tempo

About 1.8 s down, a brief touch at the bottom, about 1.2 s up, a short pause standing.

Form in numbers

What are the angles and distances?

MeasureTargetGood rangeSources
Stance, heel to heel1.9 × shoulder width1.7–2.1 ×
Toe-out40°30–45°
Knee direction vs toe direction at the bottom (seen from above)0°within 8°; never inside the toes
Depth: hip crease vs top of the knee3 cm below0–5 cm below
Knee flexion at the bottom108–109°95–120°
Shin forward of vertical at the bottom (side view)11°5–20° (the knees go out, not forward)
Trunk from vertical at the bottom28–29°15–35°
Feet ahead of the bar line4–5 cm0–10 cm
Heel lift0 cm0 cm

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 Smith Machine Sumo 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. ExRx.net, "Smith Squat" and "Barbell Squat" (knees point the same way as the feet; wide stance with toes outward; thighs just past parallel)
  2. ACE Exercise Library, "Sumo Squat" (wide stance, toes turned out, knees in line with the toes, chest up)
  3. Escamilla et al. (2001), "A three-dimensional biomechanical analysis of the squat during varying stance widths", Med Sci Sports Exerc 33(6): 984–998 (wider stances: more hip flexion and abduction, thighs more horizontal)

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