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Training to prepare for oxygen deficiency in the high mountains

My girlfriend and I are looking to do a portion of the Annapurna pass (Jomsom trek). She has climbed Kilimanjaro (not without difficulty) 3 years ago and I am a beginner with basic hiking experience in Himalayas. My question is what are some good gym exercises to prepare for a 8 day trek in Himalayas? We go a max height of 5000m at thorung la pass. Are there exercises specifically to train you for lack of oxygen? Or does any aerobic exercise(running,biking,swimming) count?

marked as duplicate by Russell Steen May 24 '12 at 14:05

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