Nauli is one of the kriyas or shatkarmas, preliminary purifications, used in yoga. The exercise is claimed to serve the cleaning of the abdominal region (digestive organs, small intestine) and is based on a massage of the internal belly organs by a circular movement of the abdominal muscles. It is performed standing with the feet apart and the knees bent.
- the abdominal lock, uddiyana bandha: the lungs are emptied, and the abdomen is pulled inwards and upwards under the lower edge of the ribcage
- madhyana nauli: only the central muscles of the abdomen are contracted
- vama nauli: only the left muscles of the abdomen are contracted
- daksina nauli: only the right muscles of the abdomen are contracted.
- Mallinson & Singleton 2017, pp. 49–50, 71–79.
- "How to Perform Nauli". www.jaisiyaram.com. Shree Bindu Sewa Sansthan, India. 10 March 2017. Retrieved 10 March 2017.
- Walford, Lisa (12 April 2017) . "Benefits of Nauli". Yoga Journal. Retrieved 19 August 2019.
- Beisecker, Ling. "It's Not "Alien Yoga"—It's Nauli Kriya, and Here's How to Do It". Do You Yoga. Retrieved 19 August 2019.
- "What is Nauli?". Nauli.org (non-profit). Retrieved 19 August 2019.
- Mallinson, James; Singleton, Mark (2017). Roots of Yoga. Penguin Books. ISBN 978-0-241-25304-5. OCLC 928480104.