This core drill with get your abs and back muscles stronger in no time, plus this week's series will strengthen your arms. Do this exercise every day for seven days as an addition to your regular yoga practice. If you don’t have time to do any practice one day, then at least do these drills and you will see your strength build over time.
Below is a beginner, intermediate, and advanced option. Choose the one that best suits you. See if you can advance throughout the week to some of the other options—challenge yourself!