Say there was a race in the Olympics that a person could use any aid aside from a motor to help them swim say a 400 meter distance in the pool.
What would the device or equipment look like?
Fins on the feet made special so they still allow a nice push off the wall, snorkel?, suit that allows the swimmer to float nicely but allows the swimmer to get under the wave off the turns? Webbed gloves on their hands, What else? Or maybe the participants jump on a boogie board type thing and then paddle with fins with it?
What about a race on land that allows for any technology except motored devices for a 1500 or 3000 meter race on the track. Would it look like a ten speed bike or a recumbent bike or other vechicle?