I betcha just continuing to work out with weights all these years has made her shape evolve into this look. People with physical jobs (strenuous, but not destructively so) get lean like this over the years. We just don't see their pictures much because they are busy working.
That leanness is probably really good protection against some of he nasty "symptoms" of menopause! That's just a guess.
Rhonda does look great! Better every time I see her! She and Cedie seem like old pals to me now! Cedie looks phenomenal too by the way.
-Connie