PA-0139
At a glance
A side-lying thoracic rotation, the top knee staying anchored on the floor or a support while the top arm opens across the body, reaching toward the opposite side. The image of the hand "chasing across the sky" captures the intended quality: a slow, following movement rather than a forced reach.
“Keep the top knee glued down before you chase the hand any further.”
Essence
The top knee staying glued down is the anchor this whole movement depends on. Without that anchor, the rotation can borrow from the hips and low back rather than really mobilizing the thoracic spine, which is where this movement's actual value lives.
Intention
To rotate the thoracic spine from a side-lying position, the top knee anchored, the top arm opening across the body and following the gaze.
What this pose develops
Physical
- •Thoracic spine rotation
- •Chest and shoulder opening
- •Isolated rotation, distinct from a whole-body twist
Mental
- •A slow, following quality of movement
- •Patience with an anchored, isolated rotation
Teaching concepts
- •Cueing the top knee to stay glued down as the movement's actual anchor
- •Reading hip or low back movement as a sign the anchor has been lost
How to practise
- 1Lie on one side, knees bent toward the chest, arms extended together in front.
- 2Keep the top knee anchored on the floor or a support (a block or bolster works well).
- 3On an inhale, begin opening the top arm, reaching it across the body toward the opposite side.
- 4Let the gaze follow the moving hand, the head turning with it.
- 5Allow the upper back to rotate open, the top shoulder moving toward the floor behind if that's available.
- 6Hold, breathing steadily, then return to the starting position and repeat on the other side.
Alignment exploration
Instead of searching for the “correct” position, notice:
- •Top knee stays anchored throughout, whether on the floor or a support.
- •The rotation happens through the upper back, the hips staying relatively stacked.
- •Gaze follows the moving hand, the neck rotating naturally with the movement.
Breath
The inhale often supports the opening reach here, with each breath offering a small additional degree of rotation rather than forcing depth all at once.
Teacher’s eye
The top knee deserves a close look. If it lifts or drifts as the arm opens, the anchor has been lost, and the rotation is likely being generated from the hips rather than the thoracic spine, which changes what the movement is actually mobilizing.
Student practice
Reflect after practising:
- •The top knee staying down is the whole mechanism here. If it lifts, the rotation has moved away from your upper back.
- •Let your gaze follow your hand naturally, rather than forcing your head to turn further than feels easy.
Common movement strategies
Rather than mistakes, you may notice:
- •Support the top knee with a block or bolster if it doesn't rest comfortably on the floor, which helps maintain the anchor without strain.
Modifications
- •A block or bolster under the top knee.
- •A smaller range of arm opening, not reaching all the way to the floor behind.
Props
Completion check
- ✓Return the arm slowly to the starting position, pausing before repeating on the other side.
Related poses
Prerequisites
Prepares for
Complements
Alternatives
Progressions
Regressions
Related movement concepts
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