Keith Power is a BASES (British Association of Sport and Exercises Sciences) accredited sport psychologist and managing director of sports psychology consultants A Different Mindset (www.adifferentmindset.com).A former international athlete and Great Britain bobsleigher, Keith is...

. For every kilogram of weight loss, you'll need to drink approximately one litre of fluid.Food For ThoughtEating for recovery is a long-term strategy, stretching from the first hour after a training session right through your rest days. The first hour

for the hills, while strong core muscles will help you maintain form as the miles tick by. Of course the element that marks out ultra hero from zero is perfect pace. Even the elite rarely "run" all the way in long ultras, so map out a run-walk strategy

your focus on maintaining a steady pace. Dr Fletcher advises, "Once you're in the race, switch to auto-pilot and just do the job. Rhythmic breathing and counting strategies are useful for dissociation from any pain you're feeling.'In The Middle

to be hard work, but warmer water, going easier on the bike and my newly discovered run-walk strategy makes me positive that it’s in reach. I’m feeling much more confident that I was even three weeks ago – bring it on! Rio