Watch Sun Salute A Tutorial Jump Back Up Dog Down Dog
You don't ever have to jump back or forward during your sun salutes, but if you do decide to jump back, please do so with your abdominals engaged and land in chatturanga with your elbows bent at 90 degrees.
A tutorial for the proper practice of down dog with rolling over the toes from up dog.
This is a common down dog mistake and how to correct it.
How to practice upward facing dog.