Knee Across The Body
Also works: Abductors · Lower Back
A supine twist: one leg stays straight, the other bends and drops across the body while the opposite hand holds the knee down and your head turns the other way. Rotating the trunk in one direction and the hips in the other loads the outer glute, the abductors and the lower back at once.
Own the movement
Set up first, then execute. Every cue below is something you can check on your next set.
Before the first rep
- Lie on your back with one leg straight along the floor and the arms out in a wide T.
- Bend the other knee and lift that foot off the floor before you rotate anything.
- Reach across with the opposite hand and rest it on the outside of the bent knee.
- Press both shoulder blades down into the floor and keep them there.
- Turn your head away from the bent knee to add a gentle rotation up the whole spine.
Every rep
Breathing & tempo — Long, slow breaths with a longer exhale than inhale. Let the knee sink a fraction on each exhale; nothing should move quickly in this position.
How much, how often
Where to start, and what to change when it stops being hard.
No load beyond the weight of the leg. Two holds of 30 seconds per side, done daily if it helps and never grimly if it does not. Progress by keeping the far shoulder flat while the knee travels further, or by straightening the crossed leg slightly to lengthen the lever.
What goes wrong
The errors that show up most often, and the cue that fixes each one.
Anchor the shoulder first and let the knee stop wherever it stops — put a cushion or foam block under the knee to hold it there. Range you buy by lifting the shoulder is rotation of the rib cage, not the hip.
Use the hand to guide and to hold, not to force. Let the weight of the leg do the work and give it 30 seconds — passive tissue gives to time, not to effort.
Press that heel down into the floor and keep the kneecap pointing at the ceiling for the whole hold. The stretch only exists because one side of the pelvis is held back by that leg.
Use it for short-term relief and put the actual work elsewhere: hip hinges, carries and trunk bracing. Ten minutes of relief is worth having, but a back that stiffens up daily needs strength and load management, not more twisting.
Why bother
Dropping the knee across pulls the pelvis into rotation while the opposite shoulder stays pinned to the floor. Everything spanning that gap gets lengthened: gluteus medius and the tensor fasciae latae on the outside of the hip, the lumbar erectors, and the quadratus lumborum on the raised side.
The detail that makes or breaks it is the shoulder. Once the far shoulder blade peels off the floor, the twist stops happening at the hip and spine and starts happening at the ribs, and the stretch fades. Whether the knee reaches the floor is irrelevant by comparison.
Where it fits
End of a session, or last thing at night, or after a long drive. Two holds of 30 seconds per side. It pairs well with a figure-four stretch, which covers the deep rotators this one mostly misses — do both if the back of the hip is the problem area.
If this one isn't it
No kit, too hard, or too easy — here's where to go instead.
Same job, different kit
Start here instead
When this gets easy
Asked and answered
Does my knee need to touch the floor?
No, and treating it as the goal is the fastest way to do this badly. The measure that matters is the far shoulder staying flat. Someone with the knee halfway down and both shoulders pinned is getting far more out of it than someone with the knee on the floor and their chest rolled 45 degrees.
Why do I get a click or pop in my lower back when I do this?
A painless click is usually just joint surfaces or gas moving as the segment rotates, and it means nothing. It is neither an adjustment nor damage. If the pop comes with pain or a lingering catch, back off the range and stop chasing the noise — some people go looking for it, which is worth resisting.
Should I do this before deadlifting?
No. Static end-range rotation of the lumbar spine before loading it heavily is the wrong order. Warm up with hip hinges and ramp-up sets, and keep this one for after the session or the evening.
Should I feel this down the back of my leg?
No. The stretch belongs in the outside of the hip and the side of the lower back. A line of tension, tingling or shooting pain running down the back of the thigh or past the knee means you are pulling on the sciatic nerve rather than muscle — bend the crossed knee more, take the rotation back a few degrees, and it usually disappears. If it does not, stop doing it and get the leg looked at.