I set up the framework for a section of chain link fence yesterday. The day before, I dragged around some 4x4 lumber for garden perimeters.
I'm no spring chicken, and I have been sedentary for a few years, so my muscles are screaming.
They'll get used to it:)
I've been doing various gardening stuff for about a month now, almost daily, and even though there are aches and pains I'm starting to feel better physically. I know a couple of ladies in my immediate neighborhood that don't garden and actually don't exercise at all. I think for older people and for all people it makes one feel better to get outside and do hard physical work as opposed to sitting in front of a tv or computer all day.