If you are in say a point to point marathon and there is a tailwind, can you attach a vest that is tied to a good sized helium balloon that would make you lighter. If you have to run to propel you forward - you are not just taking a hot air balloon type of ride - would that really improve your time?
what if it is a Revel 5000 elevation decline marathon? would the being held up actually slow you down some?
Would that likely improve performance?
what if there was no wind and a loop course. would the drag of the ballon slow you down even though you would be lighter and have less pounding?
Or would it vary depending on a person’s weight and running form with even the best designed helium ballon so it would created the least drag.