We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Your internist might give you a Cardiac Stress Test every few years to check your cardiopulmonary function, but other than that never a physical fitness evaluation beyond, maybe, a body fat composition. A very thorough physical exam might include an SF-36. This is not used often enough. (It is used in $5-10,000 "Executive Physicals," but that is often because companies take insurance on the functioning of their essential execs.)
The reason doctors don't do it is because your physical fitness at any age is your problem, not his or hers. OK, they will advise "exercise," but they know you won't do much of it, or "watch your diet" but they know you will do no more watching than looking at what is on your plate.
Serious fitness evaluations are done by the military, police, fire departments, etc. For us civilians, the only people who will give us a serious fitness evaluation are skilled fitness trainers. Trainers tell me that 3/4 of their new clients are in terrible shape. That's why they are there. About 1/4 are in decent condition, but want to get to a higher level of fitness.
Regardless of age or level of condition when you decide to get serious about conditioning, The Maggie's program of HIIT cardio, endurance cardio, calisthenics, and weights (plus proper nutrition for a svelte physique) addresses all of the areas of fitness.
"The reason doctors don't do it is because your physical fitness at any age is your problem, not his or hers"
Ok, then why do they ask me if I have a weapon in the house? Why is it any of their business whether I do or not? AND, where is that information going to go? Into my electronic medical record? A record that probably is being seen by NSA agents?
I’m 71 and about a year ago my local health club shut down. Rather than find another one I decided to work out at home. I remembered the Royal Canadian Air Force 5BX exercises from my teenage years as a possible fitness program. Sure enough, it’s available on the web.
They give you a series of charts with exercises of increasing difficulty starting at level 1 for the young and old (71 wasn’t on their radar in 1962) up to level 6 for Olympic athletes. Each chart comes with a schedule detailing the numbers of reps for each excerise in one minute. There are 12 levels total from a few reps to many. Over a period of six months, I worked up to 20 each of toe touches, curl ups, leg lifts, and push ups, plus 400 high steps/running in place in 6 minutes. I feel much better these days and more alert. Try it.