Exercise guide
Kettlebell Single Leg Split Squat With Low Box
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
This unilateral movement builds exceptional lower body strength and stability by emphasizing the glutes and quads while correcting muscle imbalances. The low box setup provides a stable range of motion that challenges balance and hip mechanics without overextending the rear hip flexors.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Place a low box or step 2-3 feet behind you and hold a kettlebell in a goblet position at chest height.
- Reach one foot back and rest the top of the foot (laces down) on the center of the box.
- Position your front foot far enough forward so that your front shin remains nearly vertical or slightly forward at the bottom of the movement.
- Stand tall with your shoulders back and your core braced to establish a stable starting base.
How to do it
- Inhale and slowly lower your hips toward the floor by bending your front knee, maintaining a slight forward lean in your torso for glute engagement.
- Descend until your front thigh is parallel to the floor, ensuring your weight remains centered over the front mid-foot.
- Exhale and drive through the front heel and mid-foot to return to the starting position with control.
- Maintain a tempo of 2 seconds down and 1 second up, completing all repetitions on one leg before switching sides.
Form checklist
- Keep the front knee tracking in line with your second toe, preventing it from caving inward.
- Maintain a neutral spine and avoid excessive arching in the lower back.
- Ensure the rear leg is used only for balance; do not push off the box with your back foot.
- Keep your chest up and shoulders retracted to prevent the kettlebell from pulling your torso forward.
Pro tips
- To maximize glute recruitment, focus on 'sitting back' into the hip of the front leg during the descent.
- Drive your front big toe into the floor throughout the set to create a more stable arch and improve balance.
- Maintain a slight forward torso lean (about 20 degrees) to keep the tension on the hips rather than just the lower back.
Make it harder
- Hold the kettlebell in the hand opposite to the working leg (contralateral) to increase the stability demand on the core and hip abductors.
- Add a 2-second pause at the bottom of each rep to eliminate momentum and increase time under tension.
Frequently asked
- What muscles does the kettlebell single leg split squat with low box work?
- The kettlebell single leg split squat with low box primarily targets the glutes, hamstrings, and quadriceps, and also works the abs, adductors, and obliques as secondary muscles.
- What equipment do you need for the kettlebell single leg split squat with low box?
- The kettlebell single leg split squat with low box uses kettlebell.
- Is the kettlebell single leg split squat with low box good for beginners?
- The kettlebell single leg split squat with low box is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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