Scientific Keys Volume I: The Key Muscles of Hatha Yoga

This is the third edition of "The Key Muscles of Hatha Yoga". There is a new cover, over 50 new pages with an expanded chapter on the breath and more biomechanics in yoga. Scientific Keys Volume I: The Key Muscles of Hatha Yoga is a 244 page book with over 650 full color illustrations covering over thirty key muscles as applied to Hatha Yoga including biomechanics and information on the chakras.