Supta Pādāṅguṣṭhāsana (Reclining Big Toe Pose) is a supine hamstring and hip opener with the highest vinyāsa count in the entire Primary Series — 28 vinyāsas. It is practiced in multiple stages: leg straight up, leg out to the side, leg across the body, and chin to shin. The supine position eliminates gravity's effect on the spine, allowing a pure focus on hamstring and hip flexibility. It is the only pose in the seated sequence performed entirely on the back.

From supta (reclining, sleeping), pāda (foot), aṅguṣṭha (big toe), and āsana (seat). The name describes the fundamental action: reclining while holding the big toe. The pose appears in various classical texts as one of the primary supine stretches for the legs.

Supta Pādāṅguṣṭhāsana has 28 vinyāsas — the highest count of any pose in Primary Series. Right side: vinyāsa 7 — lie down; vinyāsa 8 — catch the right big toe; vinyāsa 9 (Nava) — leg straight up, hold five breaths; vinyāsa 10 — head to shin (chin to knee); vinyāsa 11 (Ekādaśa) — leg out to right side, hold five breaths. Left side mirrors with states at vinyāsas 17 and 19. Each position is held for five breaths with transitions on the intermediate counts.

From Adho Mukha Śvānāsana, inhale jump through and lie down flat on the back. Raise the right leg straight up and catch the right big toe with the first two fingers and thumb of the right hand (padāṅguṣṭha grip). The left hand presses flat on the left thigh to anchor the left leg on the floor. Straighten both legs fully.

In the first position, the right leg extends straight toward the ceiling while the left leg presses firmly into the floor. Hold the big toe and work to draw the leg closer to the torso over five breaths. Then curl up and bring the chin toward the shin (head-to-knee position), hold briefly. Next, open the right leg out to the right side, lowering it toward the floor beside the body while keeping the left hip grounded and the left leg pressing down. Hold five breaths. Return the leg to center. After completing the right side, perform the full vinyāsa and repeat on the left.

After completing the left side, release the toe, lower the leg. Cross the ankles, press up through Cakrāsana (backward roll over the head to Caturaṅga) or sit up, lift, and jump back. Complete the standard vinyāsa.

Pādayoragra dṛṣṭi (toes of the raised foot) when the leg is up. Pārśva dṛṣṭi (far to the opposite side) when the leg is extended to the side — the head turns away from the leg, looking in the opposite direction.

Uḍḍīyāna bandha stabilizes the pelvis and prevents the lower back from arching off the floor. Mūla bandha anchors the base and helps maintain the grounded-leg position. When the leg opens to the side, bandha engagement prevents the opposite hip from lifting. The supine position makes it easier to isolate bandha engagement without the postural demands of upright sitting.

Both legs remain straight throughout all positions. The grounded leg presses firmly into the floor with the kneecap pointing straight up — this is as important as the raised leg position. The hip of the grounded leg must not lift when the other leg opens to the side. The shoulders remain on the floor. The raised leg's hip does not lift — the stretch comes from the hamstring, not from tilting the pelvis.

Allowing the grounded leg to lift off the floor or externally rotate. Bending the knee of the raised leg to bring it closer to the body. Lifting the opposite hip when the leg opens to the side. Losing the toe grip and switching to holding the calf or thigh. Not pressing the grounded-leg thigh firmly with the opposite hand. Arching the lower back off the floor.

Supta Pādāṅguṣṭhāsana isolates the hamstrings (semimembranosus, semitendinosus, biceps femoris) of the raised leg with exceptional specificity because the supine position neutralizes gravity's pull on the spine. The adductors are deeply stretched when the leg opens to the side. The IT band and outer hip (tensor fasciae latae, gluteus medius) of the grounded leg work to keep the hip down. The hip flexors of the raised leg engage to hold the leg up. The quadriceps of the grounded leg press the knee down.

This is one of the most therapeutically valuable poses for hamstring and hip flexibility because the supine position allows the spine to remain neutral. It is commonly prescribed in physical therapy contexts (as a hamstring stretch) and is therapeutic for sciatica, lower back pain, and hip impingement. The leg-to-the-side variation addresses IT band tightness and outer hip tension. The multiple positions provide a comprehensive assessment of hip mobility in all planes.

Use a strap around the foot if the big toe is not reachable with a straight leg — maintaining a straight knee is more important than reaching the toe. Bend the grounded knee and place the foot flat on the floor if the lower back arches excessively. For the side variation, the leg does not need to reach the floor — take it only as far as the opposite hip can remain grounded. A teacher can assist by gently pressing the grounded-leg thigh down while the other leg extends to the side.

Pādāṅguṣṭhāsana (standing big toe pose) practices the same toe grip and hamstring stretch in a standing position. Paścimatānāsana develops bilateral hamstring flexibility. Upavīśtha Koṇāsana prepares the adductors for the leg-to-the-side variation. The entire standing sequence builds foundational hamstring and hip flexibility.

Ubhaya Pādāṅguṣṭhāsana follows and returns the practitioner to an upright balance, counteracting the supine position. The vinyāsa between provides upward dog as a back extension. The act of returning to seated after the supine work is itself a counteraction.

The supine position of Supta Pādāṅguṣṭhāsana offers a rare opportunity for deep relaxation within the active practice. Lying on the back removes the postural demands of sitting and standing, allowing the practitioner to explore the limbs of pratyāhāra and dhāraṇā more deeply. The multiple positions within the pose — center, side, across — represent the yogic concept of exploring all dimensions of experience with equal attention and equanimity.