Skip to content
Crucible Fit
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Pricing
Get Crucible
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing
  • FAQ
  • Training Guides
Get Crucible
Crucible Fit

A daily functional fitness test for iPhone, Apple Watch and Android. Stations, reps and the Crux, sized to your readiness and your kit.

Download on the App StoreGet it on Google Play

Crucible Fit

  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing

Explore

  • Training Guides
  • Exercise Library
  • FAQ
  • Press
  • Support

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

CRUCIBLE FIT™ and Crux by Crucible Fit are trademarks of Crucible Fit, LLC.

© 2026 Crucible Fit, LLC. All rights reserved. Apple, the Apple logo, iPhone and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.

  1. Home
  2. /
  3. Exercises
  4. /
  5. Legs
  6. /
  7. Smith Sumo Squat

Exercise guide

Smith Sumo Squat

  • Intermediate
  • Compound
  • Rep-based
  • Lower legs
  • Upper legs

The Smith Sumo Squat utilizes a wide stance and external hip rotation to heavily target the glutes and adductors while the fixed bar path provides stability for deep hip flexion. This variation is highly effective for building lower body power and inner thigh strength with reduced stability requirements compared to free weights.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Smith Sumo Squat demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Glutes
  • Hamstrings
  • Quadriceps

Secondary

  • Abs
  • Obliques

Equipment

  • Smith machine

Setup

  1. Position the Smith machine bar at shoulder height and step under it, resting the bar across your upper traps.
  2. Place your feet significantly wider than shoulder-width apart with your toes pointed outward at a 45-degree angle.
  3. Unrack the bar and position your feet slightly in front of the bar path to allow for a more upright torso during the descent.
  4. Engage your core and maintain a neutral spine with your gaze fixed forward.

How to do it

  1. Inhale and lower your hips by bending at the knees and hips, ensuring your knees track directly in line with your toes.
  2. Descend until your thighs are at least parallel to the floor, or as deep as your mobility allows without rounding your lower back.
  3. Exhale and drive through your heels to return to the starting position, focusing on pushing the floor away.
  4. Maintain a controlled 3-second lowering phase and a powerful 1-second ascent, squeezing the glutes at the top.

Form checklist

  • Keep your knees pushed out; do not let them cave inward toward the midline.
  • Maintain an upright chest and avoid leaning too far forward.
  • Keep your heels glued to the floor throughout the entire range of motion.
  • Ensure your pelvis stays neutral to avoid 'butt wink' at the bottom of the squat.

Pro tips

  • Focus on 'spreading the floor' with your feet as you descend to maximize adductor and glute medius engagement.
  • Pause for one second at the bottom of the rep to eliminate momentum and force the muscles to work harder from a dead stop.

Make it harder

  • Add a 1.5-rep style: go all the way down, come halfway up, go back to the bottom, and then stand all the way up.
  • Incorporate a 4-5 second slow eccentric (lowering) phase to increase time under tension and metabolic stress.

Frequently asked

What muscles does the smith sumo squat work?
The smith sumo squat primarily targets the glutes, hamstrings, and quadriceps, and also works the abs and obliques as secondary muscles.
What equipment do you need for the smith sumo squat?
The smith sumo squat uses smith machine.
Is the smith sumo squat good for beginners?
The smith sumo squat is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • 3 Point Standing HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Cone Single Foot Lateral HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
  • Air Pillow Balance Counterbalanced Skater SquatAdvanced · glutes, hamstrings, and quadriceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

Download on the App StoreGet it on Google Play

See how a Crucible works