I've recently started going to the university gym - most of my exercise has come from walking the dog and going back and forth between the centrifuge and the bench in lab - so I'm trying to go running etc. a few times a week.
Today my right bicep was a bit sore and I thought it was from using the rowing machine two days ago. I was surprised that it took that long to "feel the burn" - and then I remembered that I joined the pieces on my Aidez pullover last night. Wrangling the back, fronts, and sleeves in bulky yarn on one circular needle apparently is a better workout for me than going to the gym!
Aidez by Cirilia Rose, free on the Berroco website