Yin 

Targets the connective tissues of the hips, pelvis and lower spine.  The postures, which are all seated, are held for 3 to five to 8 minutes at a time.  By holding the postures for such extended periods we allow the connective tissues time to respond helping to promote healthy, fluid filled joints. It increases flexibility and is a great aid for learning to sit in meditation. Yin Yoga is a perfect compliment to the dynamic and muscular styles of yoga such as Vinyasa Flow. 

Please note Yin Yoga is NOT a restorative yoga.  Like all yoga practices, if the tissues you are targeting are damaged in some way, please give yourself time to heal before resuming your regular practice.