In August of 2013 I was 57, not in particularly good shape, decided I was gonna ride a bicycle 2,000 miles to NY State the following summer. Took a bicycle off the garage wall that had been mostly unused for 25 years. When I started 7 miles was a long way.
Did my first 100 mile day in December of that year, been on bicycles ever since. With my knees I can’t hardly run non stop around a city block, but I can put in 40 miles on a bicycle no problem, and on rides I can hang in with twenty or thirty somethings far better than I ever could on foot.
So this is a plug for bicycles, they allow a degree of athleticism I thought was gone forever far into old age.