No joke. Even as a dude, you must have a reasonable fitness level to do this. A 51yo lady, it will be tough.
Running at 8 MPH for 645 yards is the requirement. Roughly 1 1/2 laps around a standard 440 yard track in 165 seconds.
i’m an old fat guy, and i can do that.
...that’s about a 9 min. mile pace?
not much faster than a fast walk.
if she can’t do that for 1 lap,
i sure wouldn’t want my life to depend on her,
in an emergency!!!