The Eight Limbs of Yoga: Yamas, Niyamas, Asana, Pranayama and Beyond

A traditional framework

The eight limbs (ashtanga, meaning eight-limbed) come from the Yoga Sutras of Patanjali. [1] They are a traditional path of practice aimed at liberation, not a set of exercises and not a biomedical model. Read the Yoga Sutras of Patanjali first if you want the text and its dating. This page describes the limbs as the academic sources explain them and gives no instructions for practices.

The eight limbs

How the limbs relate

The reference describes a progression of internalization through the first five limbs that continues through the last three, and says the sixth, seventh and eighth are a deepening of the same practice. [1] It also notes that the yamas lead the list, which suggests that yogic accomplishment is limited until they are put into practice. [1] Non-violence (ahimsa) is the yama commentators single out as the root of the others. [1]

Where postures and breathing fit

In the Sutras, posture takes up three brief sutras, less than one percent of the text. [1] The same reference says yoga in popular Western representations is typically presented as posture alone. [1] Pranayama, the fourth limb, is a broader tradition than classroom breathing exercises; see pranayama and breathing in yoga for beginners. The Sutras' definition of pranayama mentions external, internal and restrained movements of breath. [1] Breath retention and forceful breathing carry cautions, and NCCIH advises newcomers to avoid forceful breathing. [2] Read breath practices in yoga safety before trying any.

The last four limbs are meditative. For how they relate to modern mindfulness and meditation, see yoga and meditation together and meditation and yoga compared.

Other counts of limbs

Eight is not the only traditional count. A six-limbed yoga is described in the Maitri Upanishad and the Vishnu Purana, and the Mahabharata speaks of eight "qualities". [1] A Jain author, Haribhadra, outlined an eightfold yoga influenced by Patanjali. [3] A modern style called Ashtanga Vinyasa yoga is credited by an encyclopedia article to Pattabhi Jois, a student of Krishnamacharya. [3] See Ashtanga yoga.

What research says

Proper evidence not found for the eight-limb framework as a whole. I searched PubMed on 2026-10-22 for "eight limbs of yoga" combined with randomized controlled trial and found no results. Trials test specific practices instead, such as postures for back pain, where a Cochrane review of 21 trials found small improvements in pain and function that were not clinically important. [4] Trials of non-blinded practices are also limited by expectation effects. [4]