I am 75. After a holiday in lovely Edinburgh in early September, with my super fit daughter and her partner I realised that I was not as fit as I thought I was.
I already walked regularly, but less so in winter weather. So, I bought a step machine and after a couple of weeks I already had more stamina in my legs. And then, at the end of Sept, I overdid it and tore my Achilles tendon. For weeks I couldn’t walk without pain. My GP was rudely dismissive. I consulted Dr Google which warned of long, patchy, recuperation. And that is exactly how it has been. My ankle feels almost ok around the house but walk for more than a couple of hundred yards and it is agony. The plus side is that it now recovers-ish by the following day.
The effect of all this is that my fitness is worse than it has ever been and, having no car, I am almost housebound. It is very frustrating but hopefully I will be fully recovered by Spring.
So, be careful, exercise is wonderful, but don’t be stupid like me and overdo it.