To boost your aerobic energy, is it better to run farther or faster?
One final postscript: While I was waiting to chat to MacInnis at his poster, a Japanese researcher was asking him lots of questions. Eventually, the researcher pulled out his card, and I saw MacInnis’s eyebrows rise by an inch. I peeked over his shoulder, and mine did the same when I saw the name on the card: Izumi Tabata. Yes, that Tabata, he of the 20-seconds-hard, 10-seconds-easy Tabata Protocol. It was a cool moment, sort of like going to a car show and bumping into Henry Ford, and suddenly remembering that behind the famous name is an actual person.