In order to avoid injury and increase flexibility, it is a good idea to stretch before and after exercises. Here are a few exercises to start with, and over time can be built upon and added to. I chose to use a small towel to sit on while stretching, which is optional. Things to focus on are to hold a stretch that can be maintained for 10-15 seconds or longer rather than trying to stretch too far and stretching and releasing repeatedly; it is much easier to find your comfort zone and increase flexibility over time if you start in a comfortable pose, and slowly stretch deeper as you exhale. As always, go slow and stay within your comfort zone!