Kettlebell Windmill: How to Do It and Muscles Worked

Load card

Equipment: Kettlebell
Muscle group: Core
Main muscles: obliques, gluteus medius
Also working: deltoids, hamstrings
Mechanics: Compound
Pattern: Lateral hinge with arm overhead
Level: Advanced

The kettlebell windmill is an advanced compound exercise built around a lateral hinge with your arm held overhead. It requires significant shoulder stability and hip mobility to execute properly, making it a challenging addition to your routine.

This movement heavily targets your core, specifically hitting the obliques and gluteus medius as the main drivers. Your deltoids and hamstrings also work hard as supporting muscles to stabilize the overhead weight and control your descent to the floor.

How to do it

Clean and press a kettlebell overhead with your right arm, then step your feet slightly wider than shoulder-width apart. Turn both feet about 45 degrees to the left, pointing away from the loaded arm.

Keep your right arm fully extended overhead and your eyes fixed on the kettlebell.
Push your right hip back and out to the side while keeping your right leg straight.
Slide your left hand down the inside of your left leg as you hinge laterally at the hips.
Lower your torso until your left hand reaches your foot or the floor, depending on your mobility.
Squeeze your gluteus medius and push your hips forward to return to the starting upright position.

Sets, reps and load

Start with 3 sets of 5 reps per side to focus on control and stability. Rest for 60 to 90 seconds between sets.

Choose a very light kettlebell to master the mechanics before gradually increasing the weight.

Common mistakes

Bending the loaded arm. Keep your elbow fully extended to maintain stability. If you cannot keep it straight, use a lighter weight.
Bending the back leg. Your loaded leg must remain straight to properly engage the gluteus medius and hamstrings. Keep a soft bend only in the unloaded front leg.
Looking straight ahead. Always keep your eyes fixed on the kettlebell. Looking away compromises your balance and shoulder alignment.
Moving straight down. This is a lateral hinge, not a side bend. Push your hip back and out as you lower your torso.

Make it easier or harder

Easier

Bodyweight windmill without any equipment
Half-kneeling kettlebell windmill

Before you load it up

Pressing or reaching overhead can irritate a painful shoulder. If raising your arm overhead hurts, use a partial range or a different angle and get it checked.
This exercise loads the lower back in a hinged position. If you have a current back injury or back pain that spreads into the leg, get it assessed first and start very light.
Twisting under load is something people with osteoporosis or a recent back injury are often advised to limit.
This is an advanced variation. Build strength with the easier versions first.

Swaps and related core exercises

Same muscle group with different equipment:

Hanging Leg Raise Bodyweight
L-Sit Bodyweight
Resistance Band Woodchop Resistance band
Bicycle Crunch Bodyweight

More kettlebell options:

Kettlebell Around the World Passing around the body
Kettlebell Figure 8 Hinge with hand-to-hand pass
Kettlebell Russian Twist Seated rotation
Suitcase Carry Single-side carry

Browse all kettlebell exercises or every core exercise.

When to see a doctor or physio

Sharp pain in your shoulder joint during the overhead hold.
Pinching sensations in your lower back while hinging.
Numbness or tingling traveling down your arm or leg.

This page is general training information, not medical advice. If you are new to strength training, managing a health condition, pregnant or coming back from an injury, check with a doctor or physio first.

How this page was made. Exercise data (equipment, muscles, mechanics, level) compiled by the Unite Journal Crew as a general anatomy guide, cross-checked against the public-domain free-exercise-db list. Text drafted with AI assistance and edited by the crew; see our house rules. Last checked October 2026.