@rodkleiss
Briefly, I am 82 and have always been slim and not particularly active and have no underlying chronic health problems. Ten years ago I retired and joined an active senior class held 3 days a week given by a very fit senior who is one year older than me. About 5 years ago I started daily walks and currently do 2 plus miles a day.
My suggestion is to join a gym where they have senior classes that focus on strength and balance and cardio. You can get some free instructions on machine use when you join. Your health insurance may cover a silver sneakers type of program. You may not find the class particularly challenging depending on the instructor but you will find a community of people your age who use the gym regularly .
I would say to listen yo your body and don’t exercise to the point of soreness or pain. That will do more harm than good and could lead to injury. Get into a comfortable routine. When you get to my age there will be days you are not as spry as the day before. Your muscle mass has decreased and you have to accept that you are not a youngster anymore.
My gym teacher is focused on not falling so his classes are mainly stretching, balance, weights and cardio. He is always reading and learning. I incorporate stretching and certain yoga type exercises into my day.
I am up at 6 to walk. I still go to the senior classes even though they are not as challenging as they once were. I want to maintain what I have but I did start to jog in spurts recently out on my walks. I found I could do this fairly well but know I can’t run with my daughter.
Ask around at some of the gyms near you….most should have a monthly fee with no contract. You can get a sense of what they offer and see the demographics of its customers. Some will let you try a class for free.
I wouldn’t be too concerned about increasing your level of exercise once you have established a routine but rather maintaining that level. You may also decide to take up biking or pickle ball. Diet is important and remember to keep your protein level up. You’re gonna get older for sure and may slow down a bit but you will be far above someone who does nothing.
My two mantras are “You are what you eat” and “Don’t let the old woman in”.
Good luck on your journey and good for you for wanting to stay healthy and active.
FL Mary
Same 2 mantras for me, and the wife's none too happy: she's been locked in the garage for two days.