Leg day is one of the most important parts of a balanced fitness routine. Strong legs support everything from athletic performance to everyday movement, helping you walk, climb stairs, lift objects, and maintain stability throughout the day. Yet many gym-goers rely heavily on traditional squats alone when training their lower body.

While classic front and back squats are excellent for building strength in the quads and glutes, they don’t always place as much emphasis on the inner thigh muscles. That’s where the sumo squat shines. With its wider stance and turned-out feet, this squat variation specifically targets the adductors, commonly known as the inner thigh muscles, while still strengthening the entire lower body.

In this guide, we’ll break down everything you need to know about sumo squats, including what they are, how to perform them correctly, the muscles they work, their benefits, and tips for getting the most out of this powerful exercise at AFAC gym in Thornton, Colorado.

What Is a Sumo Squat at the Gym?

A sumo squat is a lower-body exercise that uses a wide stance with the toes turned outward. The name comes from the stance resembling that of a sumo wrestler preparing to grapple.

Like traditional squats, sumo squats are a compound exercise, meaning they activate multiple muscle groups at once. However, the wider stance shifts more of the workload toward the inner thighs while still engaging the rest of the lower body.

When performed correctly, a sumo squat strengthens several major muscle groups, including:

• Quadriceps
• Hamstrings
• Glutes
• Inner thigh muscles (adductors)
• Calves
• Hip stabilizers
• Core muscles
• Pelvic floor

Because of this broad muscle activation, sumo squats are an efficient way to build strength, stability, and mobility in the lower body. They are also highly versatile and can be performed with bodyweight or additional resistance depending on your fitness level.

How to Do Sumo Squats

If you already know how to perform a traditional squat, learning the sumo squat will feel familiar. The key differences involve the width of your stance and the outward angle of your feet.

Before starting, it’s a good idea to practice the movement in front of a mirror so you can monitor your posture and alignment.

Equipment needed: None (bodyweight), or optional dumbbell, kettlebell, or barbell for added resistance.

Muscles worked: Quadriceps, glutes, hamstrings, calves, hips, and inner thighs.

Step-by-Step Instructions

1. Begin standing with your feet roughly shoulder-width apart and your toes facing forward. Bring your hands together in front of your chest.
2. Step your right foot out to the side until your stance becomes wide, generally around three to four feet apart or wider than hip width.
3. Rotate your toes outward about 30–45 degrees. Your knees should remain aligned with your toes throughout the movement.
4. Push your hips slightly back and bend your knees as you lower into a squat. Keep your chest lifted, spine neutral, and core engaged.
5. Lower until your thighs reach roughly parallel with the floor, or as low as your mobility allows while maintaining good form.
6. Pause briefly at the bottom, then press through your heels and squeeze your glutes to return to standing.
7. Start with 3 sets of 8–12 repetitions, adjusting the range based on your strength and experience level.

How to Add Resistance to Sumo Squats

Once you’ve mastered bodyweight sumo squats, adding resistance can help increase strength and muscle development.

Dumbbell Sumo Squat

You can perform this variation in two ways:

• Hold a dumbbell in each hand at your shoulders or resting at your hips.
• Hold one heavier dumbbell with both hands extended downward so it hangs between your legs.

As you squat, allow the weight to remain centered while keeping your chest lifted and your back neutral.

Kettlebell Sumo Squat

To perform a kettlebell sumo squat:

1. Hold the kettlebell with both hands at chest height.
2. Maintain an upright torso while lowering into the squat.
3. Drive through your heels to stand.

Barbell Sumo Squat

To perform a barbell sumo squat:

1. Begin by positioning a barbell across your upper back and shoulders as you would for a traditional back squat.
2. Stand with your feet wider than shoulder-width apart and turn your toes outward at about a 30–45 degree angle.
3. Keeping your chest lifted and core engaged, push your hips back and bend your knees to lower into a squat. Your knees should track in the same direction as your toes as you descend.
4. Lower until your thighs are roughly parallel to the floor, then drive through your heels and squeeze your glutes to return to a standing position.
5. Maintain a neutral spine throughout the movement to protect your back and ensure proper form.

Be careful not to let the weight pull your upper body forward. If this happens, switch to a lighter weight until your form improves.

How Do Sumo Squats Compare to Regular Squats?

At first glance, sumo squats and traditional squats may appear similar. Both exercises strengthen the lower body and use the same general movement pattern of lowering the hips and bending the knees. However, the stance and muscle emphasis are noticeably different.

A traditional squat typically uses a stance around shoulder width with the feet pointing forward or slightly outward. This position places strong emphasis on the quads and glutes.

A sumo squat, on the other hand, uses a much wider stance with externally rotated feet. This changes the way the hips move during the exercise and increases activation of the inner thigh muscles.

Because the feet are positioned farther apart, the hips open more during the squat. This wider base of support can also reduce strain on the lower back and ankles for some individuals.

While both squat variations strengthen the lower body, the sumo squat offers an advantage for anyone who wants to:

• Target the inner thighs more effectively
• Improve hip mobility
• Reduce stress on the lower back
• Train lower-body muscles from a different angle

In many well-rounded strength programs, both squat variations are used together to maximize muscle development.

What’s the Difference Between Sumo Squats and Goblet Squats?

Although sumo squats and goblet squats are sometimes confused, they are actually defined by different aspects of the exercise.

A sumo squat refers primarily to the stance. The feet are placed wide apart and turned outward, emphasizing the inner thighs and hip muscles.

A goblet squat, on the other hand, refers to how the weight is held. In this variation, a dumbbell or kettlebell is held close to the chest with both hands.

You can technically perform a goblet squat with either a traditional stance or a sumo stance. When someone performs a wide-stance squat while holding a weight at the chest, it is often called a sumo goblet squat.

Goblet-style squats are especially helpful for beginners because holding the weight in front of the body encourages better posture and an upright torso.

What Muscles Do Sumo Squats Work?

One of the reasons sumo squats are so effective is because they activate a large number of muscles at the same time. When performed with proper technique, the exercise strengthens the entire lower body and contributes to core stability.

Here are the primary muscle groups involved.

Glutes

The gluteus maximus, medius, and minimus work together to extend the hips and stabilize the pelvis. These muscles play a major role in powering the upward portion of the squat.

Quadriceps

Located on the front of the thighs, the quadriceps are responsible for straightening the knees and controlling the descent during the squat.

Hamstrings

The hamstrings run along the back of the thighs and assist with bending the knees and stabilizing the hips during the movement.

Adductors (Inner Thighs)

The adductor muscles help bring the legs toward the midline of the body and play an important role in hip stability. Because of the wide stance, these muscles are heavily recruited in sumo squats.

Calves

The calf muscles help stabilize the ankles and contribute to overall lower-body balance during the exercise.

Core Muscles

Your core, including the transverse abdominis, obliques, and lower back muscles, works to keep your torso stable and upright.

Pelvic Floor

These muscles support the pelvis and assist with stabilization during compound lower-body movements.

Because so many muscles are involved, sumo squats are a highly efficient exercise for building strength and improving functional movement patterns.

What Are the Benefits of Sumo Squats?

Adding sumo squats to your workouts can provide several advantages beyond standard lower-body exercises.

Greater Inner Thigh Activation

The wider stance increases the involvement of the adductor muscles, helping strengthen the inner thighs more effectively than many other squat variations.

Strengthens the Entire Lower Body

Sumo squats engage the glutes, quads, hamstrings, calves, and hips simultaneously. This makes them an excellent exercise for overall leg development.

Improved Balance and Stability

Because the movement requires core engagement and hip control, sumo squats help improve balance and posture over time.

Supports Hip Mobility

The wide stance allows the hips to move through a larger range of motion. This can help improve flexibility and counteract stiffness from long periods of sitting.

Reduced Stress on the Lower Back

For some individuals, the upright posture required during sumo squats places less strain on the lower back compared to narrower squat variations.

Versatile and Accessible

Sumo squats can be performed:

• With bodyweight
• With dumbbells or kettlebells
• With resistance bands
• With barbells for advanced lifters

This versatility makes them suitable for beginners and experienced athletes alike.

Tips for Performing Sumo Squats at the Gym

To get the best results from sumo squats while minimizing injury risk, keep the following technique tips in mind.

Find the right stance width

Most people perform well with feet positioned about three to four feet apart. Adjust based on your mobility and comfort level.

Start with a narrower stance if needed

If the wide stance feels uncomfortable at first, gradually increase the width as your flexibility improves.

Master the bodyweight version first

Before adding weight, practice the movement pattern to ensure your form is correct.

Keep your heels planted

Your heels should stay firmly on the floor throughout the movement to maintain stability and proper muscle activation.

Prevent your knees from collapsing inward

Your knees should track in the same direction as your toes.

Maintain an upright torso

Keep your chest lifted and spine neutral to protect your lower back.

Watch for common form mistakes

Perform sumo squats in front of a mirror to prevent these mistakes from happening:

• Knees caving inward
• Rounding the back
• Leaning too far forward
• Using too much weight too soon

Practicing proper form will ensure you get the most benefit from this powerful lower-body exercise.

Try Sumo Squats During Your Next Leg Day at AFAC Gym

If you’re looking to strengthen your legs, improve hip mobility, and target your inner thighs more effectively, sumo squats are a fantastic addition to your workout routine. This powerful squat variation challenges your lower body in a new way while building balance, stability, and functional strength.

At AFAC gym, our experienced trainers can help you perfect your squat technique, design a personalized strength program, and guide you through exercises that maximize your results safely and efficiently.

Ready to level up your leg day?

We hope you’ll visit AFAC gym today to speak to our team about our affordable memberships and personal trainers. AFAC gym is committed to supporting your health and wellness efforts, so you’ll see the results you’re working so hard for. That’s why we were voted the best gym in Thornton, Colorado, and have hundreds of 5-star reviews.

To learn more about our top-rated gym and our incredible array of strength training and cardio equipment — as well as our unique offerings and amenities like daily group classes, cryotherapy, InBody 770 assessments, hydro massage, personal trainers, and our rock climbing wall and cave — please contact us or visit for a personalized tour. Our team will be happy to help you. For more information and assistance, you can also contact our gym owner, Susan, at 720-849-0245 or susan@adventurefitness.club.