How is the single-arm front squat different from the two-kettlebell front squat?

With one bell the load sits on one side, so your trunk has to stop you from leaning or twisting toward it, and each side is trained on its own. The Kettlebell Front Squat with two bells loads both sides evenly and lets you move more total weight.

Should I learn the goblet squat first?

Yes, for most people. The Kettlebell Goblet Squat keeps the bell centered and held with both hands, so it is easier to learn depth and posture before adding a one-sided load and the rack position.

Do I switch hands every rep?

Most people finish all the reps on one side, then switch hands and do the same number on the other side. Starting with your weaker side lets it set the rep count.

What should I do with my free hand?

Resting it on your hip keeps it out of the way and makes it easier to notice if your hips or shoulders tilt. Holding it out to the side or in front of you for balance is also fine, especially while you are learning the movement.

How do I stop the kettlebell from hurting my forearm?

Hold the handle deep in the palm with the wrist straight and the elbow tucked in, so the bell rests on the outside of the forearm and against the chest. If it still digs in, the bell may be too heavy for now, and a lighter one or a goblet hold is the better choice until the rack feels settled.

Kettlebell Single-Arm Front Squat

What Is the Kettlebell Single-Arm Front Squat?

Kettlebell Single-Arm Front Squat is a compound exercise that primarily targets the quads and also engages the glutes, adductors and trunk muscles. It is an intermediate-level movement in which you hold one kettlebell in the rack position against the front of one shoulder, rest your free hand on your hip and squat to full depth.

The legs do the same job as in any front-loaded squat, but the load sits on one side of the body. That means the trunk has to keep you from bending or twisting toward the bell on every rep, so the exercise trains the legs and the ability to stay upright under an uneven load at the same time. It is a practical choice when only one kettlebell is available, and because each side is trained on its own, a difference in strength or control between the left and right sides tends to show up quickly.

The quads drive most of the work, and the glutes and adductors take on more as you sink below parallel. Holding the bell in front keeps the torso more upright than a back squat, which shifts the emphasis toward the knees. The Kettlebell Goblet Squat holds one bell in the center with both hands, so it is easier to balance and to learn, while the Kettlebell Front Squat uses two racked bells and allows more total load with an even pull on both sides.

This variation suits lifters who can already goblet squat to depth with a neutral back and who are comfortable holding a kettlebell in the rack. If the squat itself is the limit, build it with the goblet squat or the Kettlebell Goblet Box Squat first. Learning the Kettlebell Single-Arm Clean helps too, since it is the usual way to get the bell into the rack.

Muscles Worked

MuscleActivation

Vastus Lateralis: Primary
Vastus Medialis: Primary
Gluteus Maximus: High
Rectus Femoris: High
Adductor Magnus: Medium
Erector Spinae: Medium
External Oblique: Medium
Adductor Longus: Low
Deltoid: Low
Gluteus Medius: Low

Instructions

Stand with your feet about shoulder-width apart and your toes turned slightly out.
Clean or lift one kettlebell into the rack position: handle deep in the palm, bell resting on the outside of the forearm, wrist straight and elbow tucked in front of the ribs.
Place your free hand on your hip, brace your trunk, lift your chest and keep your shoulders level.
Push your hips back slightly and bend your knees to squat straight down, keeping your heels down and your knees tracking over your toes.
Lower until your hips are below your knees, or as deep as you can with a neutral lower back, keeping your torso upright and the bell still in the rack.
Drive through your whole foot to stand back up, without leaning toward or away from the bell.
Finish standing tall with your hips and knees straight, then start the next rep.
Complete all reps on one side, then switch the bell to the other hand and repeat.

Common Mistakes

Leaning sideways
Tipping toward the bell, or leaning away to counter it, shifts the load unevenly between the legs and puts the lower back in a poor position.
Bent wrist in the rack
Letting the bell pull the wrist back strains the wrist and lets the bell press hard into the forearm.
Elbow flaring out
An elbow that drifts away from the ribs moves the bell off the body and pulls the torso forward and to the side.
Chest dropping forward
Letting the chest fall toward the thighs turns the squat into a hip hinge and makes the bell harder to hold in place.
Knees caving in
Knees that collapse inward on the way up put extra stress on the knees instead of keeping them in line with the toes.
Losing position at the bottom
Squatting deeper than your mobility allows makes the heels lift or the lower back round before you drive up.

Injuries

Kettlebell Single-Arm Front Squat is a low risk exercise when performed with proper technique. The most common complaints come from the rack, where a wrist bent back under the bell or a bell that sits too far out on the forearm can strain the wrist and bruise the forearm. The lower back can also be irritated by rounding at the bottom of a squat that goes deeper than your hip mobility allows, or by leaning sideways to balance the load, and the knees take more stress when they cave inward on the way up.

Keep the wrist straight and the elbow tucked in front of the ribs so the bell rests against the forearm and chest instead of hanging off the hand. Squat only as deep as you can with your heels down and your lower back neutral, keep your knees tracking over your toes, and keep your shoulders level instead of tipping toward or away from the bell. Choose a bell you can hold comfortably in the rack for the whole set, and do the same number of reps on each side.

To regress, use the Kettlebell Goblet Squat or squat to a box with the Kettlebell Goblet Box Squat. To progress, use a heavier bell, move to the Kettlebell Front Squat with two bells, or take the bell overhead with the Kettlebell Single-Arm Overhead Squat. Stop the set if you feel sharp pain in the knee, lower back or wrist, or numbness or tingling in the hand holding the bell.

Overview

Primary Focus: Quads
Equipment: Kettlebell
Modality: Strength
Difficulty: Intermediate

Alternative Exercises

Frequently Asked Questions

Q: How is the single-arm front squat different from the two-kettlebell front squat?: With one bell the load sits on one side, so your trunk has to stop you from leaning or twisting toward it, and each side is trained on its own. The Kettlebell Front Squat with two bells loads both sides evenly and lets you move more total weight.
Q: Should I learn the goblet squat first?: Yes, for most people. The Kettlebell Goblet Squat keeps the bell centered and held with both hands, so it is easier to learn depth and posture before adding a one-sided load and the rack position.
Q: Do I switch hands every rep?: Most people finish all the reps on one side, then switch hands and do the same number on the other side. Starting with your weaker side lets it set the rep count.
Q: What should I do with my free hand?: Resting it on your hip keeps it out of the way and makes it easier to notice if your hips or shoulders tilt. Holding it out to the side or in front of you for balance is also fine, especially while you are learning the movement.
Q: How do I stop the kettlebell from hurting my forearm?: Hold the handle deep in the palm with the wrist straight and the elbow tucked in, so the bell rests on the outside of the forearm and against the chest. If it still digs in, the bell may be too heavy for now, and a lighter one or a goblet hold is the better choice until the rack feels settled.