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.
Or, bear with me here, I'm just spitballing ideas, you could put a barbell on your back and learn to squat. More effective at building leg strength (which is what the article emphasises) and certainly safer than walking up stairs sideways while crossing one leg over the other or with a band around your ankles (!).
Neck Springs. I named it a beautiful son of a bitch of a hike after finishing it. It isnt the toughest or the most beautiful. It has at the bottom of the hike springs and existing cowboy facilities built before the park became a park. Just the springs alone make it beautiful given the shortage of water in the area. After traversing the bottom you must "hike" up an almost shear cliff, perhaps 70-75 degrees steep all the way to the top. Then you are no where near where you left your car yet. But at the top is the water troughs and old tackle where the cowboys hoisted buckets of water up from the bottom where it would be available for the cattle grazing at the top. It is beautiful, you can feel the history, but it is a sin of a bitch for a 79 YO .