Pattabhi Jois claimed to have learned the system of ashtanga from
Tirumalai Krishnamacharya, who in turn claimed to have learned it from a supposed text called
Yoga Kurunta by the otherwise unknown author Vamama Rishi. This text was imparted to Krishnamacharya in the early 1900s by his Guru, Yogeshwara Ramamohana Brahmachari. Jois insists that the text described all of the asanas and vinyasas of the sequences of the ashtanga system. However, the text is said to have been eaten by
ants so it is impossible to verify his assertions. Additionally, it is unusual that the text is not mentioned as a source in either of the books by Krishnamacharya,
Yoga Makaranda (1934) and
Yogāsanagalu (c. 1941). According to Manju Jois, the sequences of ashtanga yoga were created by Krishnamcharya. There is some evidence to support this in
Yoga Makaranda, which lists nearly all the postures of the Pattabhi Jois primary series and several postures from the intermediate and advanced series, described with reference to vinyasa. There is evidence that the ashtanga yoga series incorporates exercises used by Indian wrestlers and British gymnasts. Research by the scholar-practitioner
Mark Singleton details documentary evidence that physical journals in the early 20th century were full of the postural shapes that were very similar to Krishnamacharya's asana system. It was Jois's belief that asana, the third limb, must be practiced first, and only after that could one master the other seven limbs. However, the name ashtanga in Jois's usage may, as yoga scholar
Mark Singleton suggests, derive from the old name of surya namaskar in the system of
dand gymnastic exercises, which was named
ashtang dand after one of the original postures in the sequence,
ashtanga namaskara (now replaced by
chaturanga dandasana), in which eight body parts all touch the ground, rather than Patanjali's yoga. Some of the differences include the addition or subtraction of postures in the sequences, and specific practice prescriptions to specific people. Several changes to the practice have been made since its inception. Nancy Gilgoff, an early student, describes many differences in the way she was taught ashtanga to the way it is taught now. According to her experiences, some of the differences include: Pattabhi Jois originally left out seven postures in the standing sequence, but later assigned utthita hasta padangusthasana and ardha baddha padmottanasana before the intermediate series was given;
utkatasana,
virabhadrasana A and B,
parivritta trikonasana, and
parivritta parsvakonasana were not in the series at this point; and Jois did not give a vinyasa between the same poses on the different sides of the body or between variations on a pose (e.g.,
janu sirsasana A, B, and C were done together, followed by a vinyasa. Likewise
baddha konasana,
upavishta konasana and supta konasana were also grouped together without a vinyasa between them, as were ubhaya padangusthasana and urdhva mukha paschimottanasana. According to Gilgoff, Pattabhi Jois prescribed practising twice a day, primary and intermediate series, with no vinyasa between sides in
krounchasana,
bharadvajasana,
ardha matsyendrasana, eka pada sirsasana,
parighasana, and
gomukhasana in the intermediate series.
Shalabhasana to parsva dhanurasana were done in a group, with a vinyasa only performed at the end.
Ushtrasana through
kapotasana also were done altogether. The same went for eka pada sirsasana through
yoganidrasana. The closing sequence included only mudrasana,
padmasana, and
tolasana, until the completion of the intermediate series when the remainder of the closing sequence was assigned. Urdhva dhanurasana and "drop-backs" were taught after the intermediate series. Gilgoff states that the original intermediate series included
vrishchikasana after karandavasana and ended with
gomukhasana. She also notes that Pattabhi Jois added supta urdhva pada vajrasana as well as the seven headstands when another yogi asked for more; these eight postures were not part of the intermediate series prior to this. ==Power yoga spinoffs==