How many reps of the adductor rock-back should a beginner do?

Work up to 8 to 10 slow rocks per side, once or twice through, either as part of a warm-up before wide-stance squats or on its own on a rest day. There's no need to chase more reps over time; instead let each rep reach a little farther than the last within a comfortable range.

How can I scale the adductor rock-back up or down?

To make it easier, shorten how far you extend the leg out to the side or rock back only partway until your hips feel more open. To make it harder, extend the leg a bit farther out before you start, or add a light forward reach with the same-side arm as you rock back to lengthen the stretch further.

What is the adductor rock-back good for, and when should I skip it?

It's a mobility drill for opening the inner thighs before wide-stance squats, Cossack squats, or lateral sport movement, and it also works as gentle groin maintenance on its own. Skip it, or keep the range very shallow, if you have current groin pain or a history of adductor strain, since a deep stretch is the wrong tool while that tissue is still healing.

Beginner

Adductor Rock Back

From all fours with one leg out to the side, rocking the hips back drives a deep, controlled stretch through the adductors of the extended leg. It opens the groin and builds active end-range control, making it a smart warm-up before wide-stance squatting or Cossack work. Move slowly and let the tissue lengthen rep by rep.

Equipment: Body Weight
Body part: Thighs
Type: Stretching
Browse by muscle: Adductor Magnus, Adductor Longus

How to do it

1
Start on all fours with your hands under your shoulders and knees under your hips.
2
Extend one leg straight out to the side, keeping the foot flat and toes pointing forward.
3
Keep your spine long and your hands planted.
4
Rock your hips slowly back toward your planted heel until you feel a stretch in the extended inner thigh.
5
Pause at the point of tension, then rock forward to the start.
6
Repeat for smooth reps, then switch legs.

Tips

Move gradually; ease deeper each rep rather than forcing the first one.
Keep the extended leg straight and its inner border of the foot in contact with the floor.
Stop short of any sharp pinch in the groin and stay in a comfortable stretch.

Variations

Common mistakes

The hips rotate open toward the extended leg instead of staying square, letting the pelvis twist do work that the inner thigh should be doing.
Breath gets held through the deepest point of the rock, which tightens the hips right when they need to be soft and long.
The planted-side knee slides wide of the hip as the rock-back deepens, pulling the stretch away from the extended leg's adductor.
Pressing down through straight arms to push the hips back farther turns this into an arm-driven shove instead of a hip-led stretch.
One side gets more rocks and a deeper stretch than the other because it's the more comfortable leg, leaving a real side-to-side imbalance.

Frequently asked

How many reps of the adductor rock-back should a beginner do?: Work up to 8 to 10 slow rocks per side, once or twice through, either as part of a warm-up before wide-stance squats or on its own on a rest day. There's no need to chase more reps over time; instead let each rep reach a little farther than the last within a comfortable range.
How can I scale the adductor rock-back up or down?: To make it easier, shorten how far you extend the leg out to the side or rock back only partway until your hips feel more open. To make it harder, extend the leg a bit farther out before you start, or add a light forward reach with the same-side arm as you rock back to lengthen the stretch further.
What is the adductor rock-back good for, and when should I skip it?: It's a mobility drill for opening the inner thighs before wide-stance squats, Cossack squats, or lateral sport movement, and it also works as gentle groin maintenance on its own. Skip it, or keep the range very shallow, if you have current groin pain or a history of adductor strain, since a deep stretch is the wrong tool while that tissue is still healing.

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