While raising the legs, it is necessary that the legs be kept straight and close together. Keep the toes together and stretched towards sky.Releasing
Inhale and exhaling, bring both the legs down, back on to the floor.
Though this asana appears to be simple, it is difficult to maintain the posture. To start with try to maintain this for 5 to 10 seconds. Do not take unnecessary strain, if you feel uncomfortable then release the posture immediately.
In this asana, thigh muscles and stomach muscles are stretched. The strain reaches inner organs like small intestines, enzyme producing glands and other organs and helps increases their capacity. The vertical position of the legs help improve the blood circulation.
One should avoid movement of legs with jerk or speed. The movements should be controlled otherwise this asana can strain muscles.