It is so peculiar to chess that it serves as a shibboleth by which one may determine whether a board game is, or is not, a descendant of chaturanga.» (si.com)
Students should be able to hold chaturanga dandasana for at least 30 seconds (for ladies with support of knees on the floor). (vikasayogatraining.com)
If you find that you can't keep your shoulders from rounding forward in chaturanga or your knee from rolling inward during warrior 2, you may be going to fast or doing too much. (health.com)