Pilates is also excellent for flexibility and core strength! More focused on core strength though.

Sarah, I can´t tell you how good yoga is for the body, let alone triathlon. If you can, keep it up! You will see in about two months there will be a huge difference on how you feel on your runs! Plus you will strengthen your body to minimize injury. I practiced yoga for a year and I regreat having quit. Good for you! Keep me posted on how it feels! Nice colage by the way! Nadine