Iyengar yoga was created by B.K.S. Iyengar and focuses on the use of props when performing Asanas (or poses). It is designed to create an integration of the mind, body and spirit and is firmly based on the traditional eight limbs of yoga. These limbs were outlined in an ancient text by Patanjali in The Yoga Sutras.
This is great for / symptom indicators:
Reduce Overall Physical Pain