Seems like something useful in addition to lower intensity activities (like walking, versus running sprints in contrast), both of which seem to have a place in a “fitness regimen”
I wonder how long you’d have to do it for
the standard I saw was like warm up with something light for a few minutes, then 8 sprints with a rest: 30 seconds sprinting all out, about 90 seconds to rest, then a few minutes to cool down. and to skip days doing this, like do it every other day. but I think less is probably ok too
basically, maybe some light warm up and cool down, with as many sprints in between as you feel comfortable with. you sprint and then relax and catch your breath or whatever, then can sprint again
can be done running, biking, swimming, etc.
Sounds doable and not big time commitment either, I should look into this