Sarva means 'complete' and anga means 'body'; hence All limbs (Sarvangasana) Posture is the name sometimes used for this asdha (half) posture. The Ardha-Sarvangasana is for beginners who may find the Sarvangasana difficult.
(1) Lie on the back. Keep your arms straight and near the hips as in Shavasana.
(2) Slowly raise both your legs together so as to make an angle of 60 degrees first and then of 90 degrees.
(3) Lift your hips with a small jerk and support them with the elbows and back of the upper arms. The body should rest on the shoulders. Come down slowly. Now return to shavasana.