This is the breaking down of dhanurasana (bow pose).
Dhanurasana is a mix of heart opener, backbend and balance yoga pose.
This pose is great for losing belly fat, strengthen the back muscles and relieving chronic lower back pain.
DISCLAIMER!
If you have back pains, and generally before conducting any exercise please consult with your doctor.
I am a certified yoga teacher, personal trainer and former professional runner but remember EVERYBODY is different.
Listen to your body.