Caudwell Xtreme Everest recruited over 200 healthy volunteers to trek to Everest Base Camp. These trekkers all underwent a day of baseline measurements at our laboratory in Archway, North London. The trekkers were organised into groups of 16 people, and the first group arrived in Kathmandu on April 1st, 2007. From then on, a trek group arrived in Kathmandu every Thursday and Sunday until the middle of May, 2007. Each group of trekkers followed an identical ascent profile through the Khumbu valley to Everest Base Camp. They were tested again in laboratories in Kathmandu, Namche Bazaar, Pheriche and finally Everest Base Camp. A copy of their itinerary is available on the right of this page. Jagged Globe, the mountaineering specialists, organised the logistics of the treks for us.

We are extremely grateful to all our volunteers who donated ?500 to the science on top of the cost of the trek. Without their physical and monetary contributions this research would not have been possible.

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