New Knee @ Work

Well it had to happen sooner or later: I started back to work this week. As I am a software engineer at a large aerospace company I spend my time at work in front of a computer. I generally get plenty of mousing exercise but not much in the way of other exercise at work. Theron lies a problem. My knee has behaved wonderfully while I stay active but it really does not like prolonged sitting! I got back from work feeling stiff and achy. I'm trying to figure out ways to fight that!