Would you take a pill that would monitor your vitals during a race, or even training? Could tell you when your body is starting to overheat, muscles are breaking down, etc.. For race organizers this could be the next thing, making sure you are staying hydrated and not collapsing. Here is how us at TubaDuba see this working.
You take the pill before the start of the race, step on a pad to make sure that it works. As you compete in a Marathon or Triathlon you would cross over pad/readers along the way, on a monitor your stats could show up, if the system saw that you needed to be hydrated a water station would follow the readings. In case a runner showed a potentially dangerous reading, nearby medical teams were given access to the data so they could reach the runner, stop him, and treat him immediately. Simple safe and completely harmless.
Cheers
