Yes!! We have one of these at DS's kindergarten
It really is cool, but admittedly I didn't know it was a "thing." He is in a kindergarten run by our local Sports Association and it falls under what is called over here as a "Bewegungs Kindergarten" meaning "movement kindergarten." So it's sports-based, yes, but really the day-to-day activities are all about movement, balance, body-in-space, motor skills, strength training and so on. It really is cool the stuff they do and the things the kids learn. DS tells us a lot of things that he has done and we don't ever learn the English words for it because he has learned it in German and they are words not in the dictionary or that no one here knows in English. So "slacklining" for instance!
The first activity they did for starting this was a wooden school bench, suspended from the ceiling (the ceilings are all purpose-built with special hooks for different things!) and it basically made a balance beam that would sway as they walked on it, but was wide enough for them as they went across. They have 'obstacles' in the way - no rubber chickens though! - and the kids get around them.. They moved to a wide band and now are on a thick rope, and it looks pretty much like in the picture. They do have the triangle mats underneath in spots as well and both DS and his teacher tried to explain to me why it was a triangle mat and I didn't understand, but now I can see it in the video. Same with the hula hoops. Makes sense now!!
We also have an area in our city with two of these, specifically for kids, just in the public park.
It really is cool, and there is a lot of research framed and hanging on the walls at DS's kindergarten on how all of this kind of stuff is essential for children to master before you sit them down in a desk and teach them to print/write because it is a part of the brain that switches on and helps to train them spatially and develop the right motor skills that they need for more "academic" activities.