Nope, keep her active.
Active is good!
If she starts just hanging around, staying in bed, sitting in front of the telly, she'll start losing it.
That's what I did after the second op and it was much harder to come back.
The wound will stop her from over-doing things at first but she'll need to start stretching exercises if she gets cording - down the arm or down the ribs. (Voice of experience here!)
So, as long as she's coping, let her go ahead.
Lots of good wishes to you both.
Robyn