Konasana II

Kona means an angle. The body takes the form of an angle in this asana. In forming angles, your body is bent and twisted in ways which you do not do so in day-to-day activities. Most of the bending and twisting in Konasana is from the waist which results in streamlining the contours of your waist and abdomen. There is an internal massage of the organs of the stomach through compression.
-Stand with your feet parallel and 2.5 feet to 3 feet apart. Keep your hands at the sides.
-Raise your left hand straight up from the side, palm facing out, so that your arm is close to the ear, the right hand loosely hanging by your side.
-Your face should look ahead.
-While inhaling, bend from the waist laterally to the right as far as you can go without tilting to the front or back.
-Maintain this position while holding your breath for six-seconds.
-While exhaling, return to the standing position and lower your left hand.
-Repeat on the opposite side.
-On completion of bending on both sides, let your hands hang 
loosely at the sides and bring your feet together or leave them apart if you are practising more rounds of this asana or its variations. 

The benefits of this asana is that it stretches, massages and tones the lateral muscles of the waist. Shoulder and hamstring muscles get healthy stretches, intra-abdominal compression gives a good massage to your internal organs. It improves your abdominal muscle tone and increases flexibility of your spine.
The therapeutic benefits include, mild readjustments of the spine, strengthening of a weak spine. It is good for muscular pains of the cervical, shoulder and lumbar regions, while also being good for scoliosis and in managing ankylosing spondylitis.