Research in yoga

Hi,
I am tamil doing my Ph.D. in yoga and its effects.
I am looking forward for guidelines from yoga teachers and any suggestions regarding this.
Thank you.

Namaskar,

First of all, a warm welcome to you. I am always glad to see that more of the academic fraternity seem to want to do research into yoga, because it sometimes scientifically confirms what the rishis and seers of old just knew.

Secondly, in order for any one to respond with anything you need to be more specific in what it is that you would like to know. If you share more info with us, I am sure we would be glad to share more with you. Specific questions would warrant specific answers.