Seated Spinal Twist
The seated spinal twist, or Ardha Matsyendrasana, wrings out the mid-back and lengthens the obliques while giving the outer hip of the crossed leg a gentle stretch. Rooting the sit bones and lifting tall before you turn keeps the rotation healthy and even along the spine. It is a calming way to restore rotational mobility after a session or a long day seated.
- Equipment
- Body Weight
- Type
- Stretching, Yoga
- Browse by muscle
- Abdominal External Oblique, Erector Spinae
- Target
- Abdominal External Oblique, Erector Spinae
- Secondary
- Gluteus Maximus, Gluteus Medius
- Tertiary
- Trapezius Middle
How to do it
- 1
Sit tall with both legs extended, then bend one knee and cross that foot outside the opposite thigh.
- 2
Keep the bottom leg straight, or tuck its heel toward the opposite hip.
- 3
Sit up out of the hips and lengthen the spine before turning.
- 4
Hook the opposite elbow outside the raised knee and rest the other hand behind you.
- 5
Exhale and rotate the torso toward the back hand, turning the head last.
- 6
Hold with a tall spine and easy breath, then unwind and switch sides.
Tips
- Grow taller on each inhale and rotate a little further on each exhale.
- Twist from the mid-back rather than yanking with the arm against the knee.
- Sit on a folded blanket to tilt the pelvis forward and keep the low back long.
Variations
Common mistakes
- The sitting hip on the side of the bent leg lifts off the floor as the knee crosses over, tilting the pelvis instead of keeping it level under the spine.
- Once the spine rounds forward at the start, the rotation that follows twists a curved back instead of a tall one, which does far less for the mid-spine.
- Pressing hard against the raised knee with the elbow to crank extra rotation strains the knee joint for a few more degrees of twist that are not worth it.
- The back hand grips the floor and pulls the torso around, doing the rotation's work instead of resting there for balance alone.
Frequently asked
- How long should a beginner hold seated spinal twist?
- Hold 5 to 8 breaths per side for one or two rounds, growing taller on the inhale and turning a bit more on the exhale each time. Add rounds only after your hips are loose enough to sit level through the whole hold, not before.
- How do you make seated spinal twist easier or harder?
- Make it easier by keeping the bottom leg straight instead of tucking the heel toward the hip, or by sitting on a folded blanket to tilt the pelvis forward. Make it deeper by tucking the bottom heel in tight and eventually wrapping the arm around the shin instead of only hooking the elbow outside the knee.
- What is seated spinal twist good for?
- It restores rotational mobility to a stiff mid-back and gives the outer hip of the crossed leg a real stretch, making it a good reset after a day of sitting or a heavy training session. It is a poor choice with a disc-related back injury and no clinician's clearance, since deep spinal rotation is often restricted after that kind of injury.
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