My big mate who lifted heavy for years has been advised by his doc and a physio that he should lift lighter and more reps as he is older - 57 years. Not sure if this advice is good or not but heβs doing it. Saying that, light for him is heavy enough for me π
As an old guy (66) I urge lower weight and higher reps/sets.
Recovery after a heavy session takes longer as I get older. Doing less weight more frequently works better for me.
Re getting older: Weightlifting is very beneficial for women and seems to help a bit as well against the post menopausal fat gain.
I am getting creakier for so far strength is not as much as 10 years ago, but ok.
My rowing speed on the machine definitely isn't what it was 20 years ago π