Flexibility is one of the Wellness Attributes which is easy to score and improve. But, in my personal opinion one of the easiest ways to re-injure a healing spine or extremity joint by stretching to aggressive or doing to much to fast. But, one of the keys to youth fullness is great flexibility so be careful starting out but keep doing it. Most joints are a hinge joint so to many experts a stretch is a stretch but if you need more motivation or get bored easily keep trying different techniques and classes. If you are like me who was hit by a City Bus at early age and has lot of scar tissue and disc issues then keep it simple and talk to the doctor or trainer to modify your stretching routine for your personal problems.
Another great thing about flexibility and Range of Motion, ROM, is that you can test any joint and there are AMA normals for each joint so there is no guessing involved. Just add the score into your Back to Life Master Score Sheet.
Individual Score Sheet for Flexibility:
Companion Forms:
Here are the short version and long version stretches we start out with along with Seconds app download that is a counter that goes with each stretch.
http://www.intervaltimer.com/timers/9958376