Weighted Kettlebell Dead Bug

How to do the Weighted Kettlebell Dead Bug

1. 1Lie flat on your back with your knees bent and feet flat on the floor. Press your lower back firmly into the floor and brace your core before you pick up the kettlebell.
2. 2Hold the kettlebell in one hand and press it straight toward the ceiling, arm fully extended, wrist stacked over your elbow over your shoulder.
3. 3Raise both legs so your hips and knees are at 90°, shins parallel to the floor. This is your starting position.
4. 4Inhale to prepare, then exhale and slowly lower the leg opposite your kettlebell arm, extending it toward the floor while keeping your lower back pressed flat.
5. 5Lower the leg until it hovers a few inches above the floor — or as low as you can without your back arching off the ground.
6. 6Pause for one beat at the bottom, maintaining a rigid torso and keeping the kettlebell locked directly overhead.
7. 7Exhale and draw the leg back up to the 90° starting position with control, completing one rep.
8. 8Complete all reps on one side, then switch the kettlebell to the other hand and repeat with the opposite leg.

Form tips

• Think of pressing your lower back into the floor throughout every rep — the moment your back lifts, you have lost core tension and the exercise loses its protective value.
• Move slowly and deliberately; a 3–4 second lowering phase amplifies the anti-rotation challenge and keeps momentum from doing the work for you.
• Keep your non-working arm relaxed at your side rather than bracing against the floor — letting the floor take that load bypasses the core stabilization you are training.
• If the kettlebell wobbles or your shoulder shrugs, reduce the weight; the overhead arm must stay locked and stable for the exercise to work as intended.
• Breathe out on the way down — forceful exhalation increases intra-abdominal pressure and reinforces spinal stiffness at the hardest part of the movement.

Common mistakes

• Letting the lower back arch off the floor as the leg descends, which shifts load from the core to the lumbar spine and defeats the purpose of the exercise.
• Using a kettlebell that is too heavy, causing the shoulder to shrug or the elbow to bend and reducing the anti-rotation stability challenge to a simple arm curl.
• Rushing through reps with momentum rather than controlling the movement, which removes time under tension and makes the exercise far less effective for core development.
• Extending the same-side arm and leg instead of opposite limbs, which eliminates the rotational demand and turns the exercise into a much easier movement.
• Holding your breath instead of breathing rhythmically, which spikes blood pressure and prevents you from using intra-abdominal pressure effectively to stabilize the spine.

Frequently asked questions