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🙇 Forward Fold

Ardha Hanumanasana

Half Split

Difficulty★★☆☆☆

TierBeginner

SEGA Tariff3.0

Hold Time30s

SEGA AI Scoring Specification

Reference IDASANA-STD-172

Difficulty Tier2 of 5

SEGA Tariff Score3.0

Required Hold30 seconds

CategoryForward Fold

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Properties

What kind of pose this is

A flexion posture that lengthens the whole posterior chain. Forward folds are calming to the nervous system and are the classic counter-pose to backbending.

Hold: Hold for about 30 seconds. Beginners should build up to this rather than starting there; come out early if the breath becomes ragged.

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Preparation

How to do Half Split

Set the pelvis first — tilt forward from the hip joint, not from the waist.
Keep a soft micro-bend in the knees; straight legs are a result, never a starting instruction.
Lengthen the front of the spine on the inhale.
Fold a little further on the exhale, only as far as the spine stays long.
Let the head and neck hang heavy once you have arrived.
Come up with a rounded spine and bent knees, or bring the hands to the thighs for support.
A developing-level shape. Build the hold time gradually rather than deepening the shape.

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Musculature

Which part of the body works

Primary musclesHamstrings, gastrocnemius and soleus, gluteals (lengthening under load)

Supporting musclesSpinal erectors (eccentric control), hip flexors (concentric)

Joints loadedHip flexion primarily; lumbar spine must stay long, not rounded under load

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Health benefits

What this pose is for

Lengthens hamstrings and calves and relieves posterior-chain tightness
Calms the nervous system — forward folding reliably lowers arousal
Gently decompresses the lumbar spine when done from the hips
Improves hip-hinge mechanics, which protects the back in daily lifting
Siddha / Varma note: Traditional Siddha-Varma associates forward folding with the back-line pathways; traditional context only, not medical guidance.

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Contraindications

Who should not practise this

Do not practise Half Split if:

you have a diagnosed disc herniation or sciatica with pain travelling down the leg
you have osteoporosis or osteopenia with fracture risk — loaded spinal flexion is one of the few genuinely contraindicated movements
you have glaucoma, retinal detachment risk or uncontrolled high blood pressure (for deep head-below-heart folds)
you are in the second or third trimester of pregnancy — modify with wide feet and never compress the belly
you have had abdominal or spinal surgery in the last 3–6 months without surgical clearance

Clinical contraindications

Acute disc herniation or sciatica with leg symptoms
Uncontrolled high blood pressure or glaucoma in deep head-down folds
Late pregnancy (fold with feet wide, never compressing the abdomen)
Acute hamstring tear
Osteoporosis with vertebral fracture risk — spinal flexion is specifically contraindicated

Side effects & what people commonly feel

A pulling sensation behind the knees
Head rush on standing up too quickly
Low-back ache if the fold came from the spine rather than the hips

Applies to every pose on this site. Never practise into sharp, shooting or joint-line pain — muscular stretch is acceptable, joint pain is not. If you are pregnant, recovering from surgery or illness, or managing any diagnosed condition, get clearance from your doctor or physiotherapist before beginning, and tell your teacher. Post-surgical timelines given here are typical guidance only — your own surgeon's instruction always overrides them.

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Functional Biomechanics

The mechanics of the pose

Kneeling straight-front-leg hamstring lengthener with square hips.

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SEGA AI Judge System

How the AI scores this pose

The SEGA AI Judge System uses a movement-responsive scanning engine — the scoring window opens the moment the system detects the athlete entering the posture, not on an arbitrary countdown. For Half Split, the scanning trigger works as follows:

▸ AI Scanning Trigger — Reference ASANA-STD-172

Scoring initialises at maximum controlled flexion; the AI tracks spinal length, pelvic tilt and leg engagement rather than depth alone.

Once the trigger fires, the AI evaluates Execution (form geometry), Stability (centre-of-gravity control across the 30-second hold) and Difficulty (multiplied by the SEGA Tariff of 3.0) to produce the final score. The full tamper-evident record is written to the SEGA World Ranking archive.

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Heritage Medicine · Siddha & Varma

Which vital points this pose activates

Master Segar’s Siddha lineage teaches that every asana affects specific vital points and energy pathways in the body. This is the traditional understanding of Half Split according to Varma Kalai and Siddha medicine.

Vital Point Stimulation

Traditional Siddha-Varma associates forward folding with the back-line pathways; traditional context only, not medical guidance.

This is a wellness description drawn from the Siddha tradition. It is not a medical claim. For clinical guidance please consult a registered healthcare professional or Prof. Master Segar Guru — a registered Siddha practitioner.

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Safety Protocol

Practise safely

Critical Safety Note

Fold from the hips with a long spine; bend the knees freely to protect the low back and hamstrings.

All asanas should be practised with breath awareness, gradual progression, and — where possible — under the guidance of a qualified teacher. If you have any injury, medical condition, are pregnant, or are new to yoga, please consult a qualified instructor before attempting this pose.

Master this asana with expert guidance

Learn Ardha Hanumanasana under Master Segar’s direct instruction at the Sentul studio in Kuala Lumpur, or with our state partners in Perak and Negeri Sembilan.

See class schedules → ← Back to Asana Index

Important note. The SEGA Asana Index is an educational reference for the SEGA AI Judge System scoring criteria and traditional Siddha-Varma understanding. It is not a substitute for in-person instruction. All asana descriptions are educational; consult a qualified yoga teacher and, for medical guidance, a registered healthcare professional or Prof. Master Segar Guru — a registered Siddha practitioner.