Let’s make scientific analyses of select asanas-
Suptapawanamuktasana- start with the right leg to press against the ascending colon and release the trapped gases; it activates the digestive fire.
Naukasana- is greatly rejuvenating as it stimulates and tones the digestive, muscular, circulatory, nervous and hormonal systems.
Naukasanchalana- there is constant expansion and elongation of pelvis muscle; the pressure is created on the internal organs like the ovaries and the uterus; the gentle massage, exclusive awareness along with synchronized breath frees up the pranic blockages allowing greater blood flow to the pelvic area; the metabolism is activated and leads to drainage of waste materials as the toxins are extracted by this practice; leaving the body revitalized at the cellular level
Udarakarshana- squeezes the uterus and the ovaries and causes relative ischemia as fresh blood irrigates the organs, keeps a check on their hyperfunctioning by regulating the growth and behaviour of a cell, thus preventing abnormal growths, reducing pain and menstrual flow and avoiding surgery of fibroids.
Balancing asanas- the impact of these asanas is mainly on the nerves when body weight is one side and the mind is focussed at one point, the left and right hemispheres of the cerebrum governing opposite sides of the body are well exercised, the nervous coordination between the brain and the skeletal muscles becomes harmonized
Asanas related to backache, slipped disc, sciatica, and lumbago-
Tadasana- involves stretching of the whole body, strengthening the back muscles and the spine; it helps slipped disc conditions of bursts or prolapses where the jelly-like central nucleus is squeezed out through a split in the outer annulus owing to the constant downward pressure of the brain and the skull including the two arms, the effect of reverse pressure on the vertebral column allows free flow in the spinal nerves and helps regain & retain the original shape; sciatica sufferers get shooting and radiating pain owing to nerves emerging from the sides of the vertebrae squashed hampering the ability to pass messages, by regular practice of tadasana, an adequate gap of nerve canals is maintained by the stretching effect of the vertebral canal; this pressure on the lower abdominal muscles activates the apana vayu and helps to expel & relieve constipation.