As we age past 40, our bodies lose muscle mass and bone density. So it is certainly wise to exercise in order to maintain as much muscle mass and bone density as possible.
That being said it’s important to listen to your body. In our 20’s and 30’s, the mantra for exercise is “no pain, no gain.”
I would suggest that after 40 you should listen to your body. If a certain exercise hurts, you may want to modify, decrease reps or even discontinue it altogether.
Safe low impact exercises include biking, ellipticals, rowing machines, yoga, Pilates and pretty much anything in a pool.
So try to implement some of these into your regular routine!
-Kenneth Grinspun, M.D