Padotanasana is ideal exercise for large intestine and boosting the metabolism.
Lie on your back on the floor and look upwards. Keep both the arms straight and close to your body and palms touching the floor. Keep both the legs straight, heels and toes touching each other. Stretch your toes away so that your feet are in line with the legs. Stretch your arms and hands towards your head in line with your body.
While inhaling, raise your left arm and right leg upward. Keep the hands and toes stretched. Your toes and hands should be parallel to each other. Make your breath normal and bring your arms and legs to starting position.
Next, while inhaling, raise your right arm and left leg upwards. Keep the hands and toes stretched upwards. Make your breath normal and bring your arms and legs to starting position.
Next, while inhaling raise both your legs and arms in upward direction. Make your breath normal and bring your arms and legs to starting position.
Relax in shavasana pose.
Carry out 2-3 sets. After sufficient practice you can try to comfortably hold this asana for more time.
Tones up the large intestines.
Improves metabolism rate.
Helps to regulate menstrual cycle in ladies.