Unbelievably Thick Viscous Slow Stable Roller Skates For Video Camera Operators

Roller Skates worn by the video camera operator, but they hardly roll at all at first, and when they do, you can't go fast, and when you're at the maximum pace (which is about as fast as a presenter can walk forwards while playing an invisible accordion - or is it?) it wants to keep going at that speed. It has overriding stability, it won't easily speed up or slow down. Actually stopping would have to be a special case or exception, instigated separately and probably not by simply making the roller wheels stop moving suddenly because they won't. These skates feel highly gyroscopic, would be very difficult to fall over in, and are smooth and predictable. Once you've started them in motion, it's like gliding backwards through porridge.