How to do a backbend against a wall<br>Find a good, clear spot. Find a wall space that is clear of any obstructions such as furniture, plants or sharp objects. It should have nothing that could injure you near it.
You should not do a backbend against a wall with a picture hanging on it. 
If a picture is hanging on the wall, it is not a clear spot, and therefore, you should not do a backbend on it. 