Vajra Ardha Paschimottanasan

Left leg is in vajrasana, heel outside the buttock, right leg stretched to the front.
With exhalation hold the right toe with the left hand.
Encircle the waist with the right hand and bend forwards to touch the forehead to the right knee like in ardha paschimottonasana.

Practice from both sides.   

As per ardha paschimottonasana and also vajrasana.
Improves functioning of the lungs, digestive system, intestines and other enzyme producing glands.
Strengthens the knees and ankles.
Cure trouble on the lumber part of the spinal cord.   

As per ardha paschimottonasana & vajrasana.