Yesterday I did another workout, my fourth and last of my four free passes at the gym. I did the bike ten minutes at level 3, handled it well. I upped the rows to 50 pounds from 35. The rest stayed the same. As I was reaching to grab the lat pulldown handle with my left hand (I had already pulled it partway with my right) I wrenched that arm and it hurt like blazes. But it eased off and I was able to finish the reps. All good.
After showering I headed for the membership desk and paid for a membership for a year ahead. I felt good about the decision, about doing this for myself, and good about my prospects.
And now that I am a member I got to thinking what else I might want to do. Today I took an aqua class. I had done a few of these in a former gym a few years back and felt unsteady on my feet, not all that comfortable with it. But I thought I'd give it another try. This class was a full hour long and was run much as a typical aerobics class is, with cardio, then weights, then stretches, with the difference that we were mostly underwater and using foam "weights" and noodles. There are some times when I felt twinges in my left knee in particular, and near the end I couldn't raise my left arm, of course, for a stretch, but I did what I could, which was a lot. I will need to bring sunscreen next time because it's outdoors.
Overall I am finding that I am stiffer. Stiffer when I get up in the morning, stiffer after exercise, before exercise, generally stiffer. I suspect that this stiffness will ease off and I will start to loosen a little over time.