I've not been biking since October. I kind of switch over to more running in the cold weather. These days I do a lot of walking, and less running -- I could do a 5K without a walk break right now, but I'd need to make a training effort to do more. However, I can walk all. day. long. I walk hills a LOT too. When we were on vacation in Mexico, I took very hilly walk/runs for an hour and a half everyday and felt good doing it.
My upper body is another story. I'm looking forward to giving my arms and upper back more of a workout, at least one that isn't from shoveling snow -- it's really hard to keep good form doing that.
I've done three days of this workout now, and I feel a bit of soreness in my abs and in my quads, but not debilitating. Oddly enough, I think my photography activity keeps my quads working a lot too -- I squat and get down and up a LOT when I'm out taking pictures. So maybe those thick thighs of mine are a strength blessing in disguise!
I bought little hand weights while I was out yesterday -- I sprung for the two-pound and the three-pound, considering they were all of $7 per pair at TJMaxx. I figure I can work my way up as I gain strength. Still, I'm a bit surprised this workout has been manageable for me. I guess I'm in better shape than I thought, even though my weight and size are not where I would like to be.