Kettlebell Single-Leg Deadlift

Unilateral strength and stability for hip and hamstring integration.

StrongFirst (Pavel Tsatsouline) · The Kettlebell Single-Leg Deadlift (SLDL) is a fundamental unilateral hinge pattern, widely adopted within the strength and conditioning community, notably championed by Pavel Tsatsouline and the StrongFirst methodology for its emphasis on foundational strength and structural balance. · This movement addresses deficits in unilateral hip strength, hamstring flexibility, and lumbopelvic stability. It meets the felt state of asymmetry or instability during gait or single-leg tasks, providing a robust pathway to symmetrical loading and coordinated movement. · Perform 3-5 sets of 5-8 repetitions per leg. Focus on controlled movement and maintaining form over lifting heavy. Rest 60-90 seconds between sets.

Why it works

The Kettlebell Single-Leg Deadlift activates the entirety of the posterior chain on the stance leg—gluteus maximus, hamstrings, and erector spinae—while simultaneously engaging intrinsic core stabilizers to resist rotation and maintain neutral spine. The contralateral loading (kettlebell in the hand opposite the stance leg) further challenges trunk stability and proprioception. Neurologically, it refines motor control pathways for balance and intermuscular coordination. Tissue-wise, it promotes eccentric strength in the hamstrings and dynamic stability in the hip and ankle complex, mitigating compensatory patterns that can arise from bilateral dominance.

How to practice

Stance: Stand tall, feet hip-width apart. Hold one kettlebell in the hand opposite the leg you will be standing on. For example, if you are working the left leg, hold the kettlebell in your right hand. Allow the kettlebell to hang naturally at arm's length.
Initiate Hinge: Soften the knee of your stance leg. Begin to hinge at your hips, extending the non-standing leg straight back behind you, maintaining a straight line from the crown of your head to the heel of the extended leg.
Lowering Phase: Allow the kettlebell to descend towards the ground, tracing a path along the inside of your stance leg. Keep your spine neutral—avoid rounding your back. The descent should be controlled, feeling a stretch in the hamstring of the stance leg.
Bottom Position: Continue hinging until your torso is roughly parallel to the floor, or until you feel a significant stretch in the hamstring. Ensure your hips remain level; avoid rotating or tilting.
Ascending Phase: Drive through the heel of your stance leg, squeezing the glute to return to the starting upright position. As you stand, bring the extended leg back to meet the stance leg. Maintain tension throughout the movement.
Repetition: Complete all repetitions on one side before switching to the other.
Stance: Stand tall, feet hip-width apart. Hold one kettlebell in the hand opposite the leg you will be standing on. For example, if you are working the left leg, hold the kettlebell in your right hand. Allow the kettlebell to hang naturally at arm's length.
Initiate Hinge: Soften the knee of your stance leg. Begin to hinge at your hips, extending the non-standing leg straight back behind you, maintaining a straight line from the crown of your head to the heel of the extended leg.
Lowering Phase: Allow the kettlebell to descend towards the ground, tracing a path along the inside of your stance leg. Keep your spine neutral—avoid rounding your back. The descent should be controlled, feeling a stretch in the hamstring of the stance leg.
Bottom Position: Continue hinging until your torso is roughly parallel to the floor, or until you feel a significant stretch in the hamstring. Ensure your hips remain level; avoid rotating or tilting.
Ascending Phase: Drive through the heel of your stance leg, squeezing the glute to return to the starting upright position. As you stand, bring the extended leg back to meet the stance leg. Maintain tension throughout the movement.
Repetition: Complete all repetitions on one side before switching to the other.