Sonia O'Sullivan believes Irish athletes' prospects at the Olympics may have been hurt by them travelling to Japan so early in advance of the Games.
Apart from the 4x400m mixed relay team reaching their final, it has mostly been disappointment for Ireland on the track.
"I think it might have been a mistake for a lot of the athletes to go out to Japan so early for a training camp," O'Sullivan told RTÉ.
"A lot of them were out there way too long. Particularly, someone like Sarah Healy. She said she was nervous when she got to the stadium. She's been out there for nearly two weeks.
"You're in a very artificial environment. There's nothing to distract you. You're going training, you're eating, you're sleeping. There's nothing else going on."
When suggested that acclimatisation was part of the reason for athletes travelling early, the Olympic silver medallist responded: "A maximum of five days is all you need for that. I'm sure there's a load of science and physiology out there that would disagree with me.
"If you were to speak to someone like myself, or Derval (O'Rourke), we've been there before, and done this. We know what it takes, and you don't have to prepare that long in advance if you're fit, and ready to go."
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