After a weekend of stretching and and hamstring rehab exercises, I felt good enough to return to Plycore class. I made up my mind that I would be cautious before I even started the class. I arrived forty-five minutes early so that I could warm up and stretch my legs. I felt really good throughout the class. We began with a 2.3 mile run through the city streets. I was able to finish the run, but I didn't try to push it. Also, my conditioning had clearly dropped off from where it was prior to my achilles issues. I did not take part in any leap frogs or stairs. Instead, I did dips, walking lunges, and leg lifts as alternatives. After the class I did a lot of stretching and used the foam roller. I felt good for most of the day, but I did start to stiffen up towards the end of the day, but my wife help me to stretch and massaged my legs. Overall, I was pleased with my effort and the class, but I still need to be cautious. My legs are still being effected by my injuries, but I am optimistic that I can take classes again. We'll see how it goes.