Yoga schools are as diverse as the meanings of the bracket term yoga. Within the major branches of yoga such as haṭha, lāya, rāja, jñāna, and bhakti there are many different schools and lineages, both extant and defunct. Since the late 19th century, a great number of distinct new styles of "Yoga" have been introduced by individual teachers. Some schools and traditions are occasionally referred to as yoga or yogic for their similar practices, despite having no foundation in the Indian tradition; these include Shin Shin Tōitsu-dō, and Daoyin.
The term "Yoga" has been used for various philosophies and concepts in the context of Hindu revivalism and Neo-Hindu religious and philosophical movements.
Further information: Yoga as exercise
India and other Asian countries are home to thousands of yoga schools founded over the last century to teach yoga as exercise, which unlike all earlier forms consists in large part of asanas. Below are some and their style of yoga.
Several eclectic styles, some with Western audiences, are partially based on Hatha yoga:
With the widespread reception of the concept of "Yoga" in the west, the term has also been transferred to similar systems of meditation and exercise which are not of Indian origin, mostly without global reach:
The original Power Yoga was developed and founded by Beryl Bender Birch, but is now a term used to describe many vigorous vinyasa styles.