Suna Yoga
SeatedBeginner

Head-to-Knee Pose

Janu Sirsasana

Head-to-Knee Pose (Janu Sirsasana, meaning "head to knee" in Sanskrit) is a one-legged seated forward fold that offers subtle advantages over the two-legged version, allowing each side of the body to be addressed individually and often enabling a deeper fold for people with tight hamstrings. The bent leg creates a mild outer hip opening as the knee falls to the side, adding a hip component to what is primarily a hamstring and spine stretch. The slight rotation of the torso toward the extended leg engages the spinal muscles differently from a straight fold, adding a gentle twisting dimension to the pose. It is a calming, inward-turning posture that suits the end of a practice as well as its middle.

Benefits

  • Stretches the hamstrings, groin, and lower back
  • Opens the outer hip of the bent leg
  • Calms the mind and relieves mild depression
  • Stimulates the liver and kidneys
  • Soothes headache and fatigue

Step-by-Step Instructions

  1. 1

    Sit with both legs extended.

  2. 2

    Bend the right knee and place the sole of the right foot against the inner left thigh.

  3. 3

    Inhale and lengthen the spine.

  4. 4

    Exhale and hinge forward over the left leg.

  5. 5

    Hold the shin, ankle, or foot with both hands.

  6. 6

    Hold for 5–10 breaths, then switch sides.

Common Mistakes to Avoid

  • Rounding from the waist: hinge from the hips

  • Pulling the foot toward you with force: let the fold deepen gradually

Modifications & Variations

  • Use a strap around the extended foot

  • Sit on a blanket to tilt the pelvis forward

Safety Notes

Knee injury in the bent leg

Herniated disc

Frequently Asked Questions

Why does one side feel so different from the other in Head-to-Knee Pose?
The asymmetry you feel reflects real differences in the outer hip rotation and hamstring flexibility between your two sides. This is almost universal. The side with the bent knee has the outer hip and glute of that leg in a stretch, while the extended leg side determines the depth of the forward fold. If you sit at a desk, cross your legs habitually, or carry a bag on one shoulder, the two sides of the hips will develop very differently over time. Consistent practice of both sides without forcing either one will gradually reduce the asymmetry.
My back rounds a lot when I fold forward. Is that harmful?
A rounded lower back in seated forward folds over time can stress the lumbar discs, particularly if you are pulling yourself into the fold with significant tension. The fix is always to prioritise a long spine over depth: sit on a folded blanket to tilt the pelvis, bend the extended knee slightly, and use a strap around the foot so you can hold a long back without having to strain. A fold from a long spine to a moderate depth is far safer and more effective than a deep fold from a rounded back.
What is the bent knee doing in Head-to-Knee Pose?
The bent knee position, with the sole of the foot against the inner thigh, does more than just get one leg out of the way. It creates a gentle opening in the outer hip and groin of the bent-leg side, rotates the pelvis slightly, and often makes the forward fold slightly easier than the symmetrical Seated Forward Fold. It also introduces a mild twist into the pose when combined with the fold, adding a gentle wringing action through the spine. The pose is more complex than it looks, which is why it appears in so many yoga traditions as a foundational seated posture.

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