introduction:

New York Times (November 3, 2009) A Breathing Technique Offers Help for People With Asthma
References: scholar.google for hyperventilation and buteyko, including:
Bowler SD, Green A, Mitchell CA. Buteyko breathing technique in asthma: a blinded randomised controlled trial. Med J Aust. 1998;169:575-8.
McHugh P, Aitcheson F, Duncan B, Houghton F. Buteyko breathing technique for asthma: an effective intervention. N Z Med J. 2003;116(1187).
Cooper S, Oborne J, Newton S, et al. Effect of two breathing exercises (Buteyko and pranayama) in asthma: a randomised controlled trial. Thorax. 2003;58:674-9.
McHugh P, Aitcheson F, Duncan B, Houghton F. Buteyko breathing technique and asthma in children: a case Series. NZMJ 19 May 2006, Vol 119 No 1234.
Robert L. Cowie, Diane P. Conley, Margot F. Underwood and Patricia G. Reader A randomised controlled trial of the Buteyko technique as an adjunct to conventional management of asthma Respiratory Medicine Volume 102, Issue 5, May 2008, Pages 726-732.

video links:

Buteyko Breathing segment on StarTV Asia
1. Australian Buteyko Seminar
2. Professor Konstantin Buteyko
3. Breathing
4. Australia Selected
5. Brisbane Clinical Trial
6. UK Clinical Trial
7. Paul O'Connell Personal Experience
8. Changing your Breathing
9. Observed Results
10. Breathing through the Nose (the exercise to clear up a stuffy nose)
11. Possible Causes
12. Preventers & Relievers
13. Posture & Sleeping
14. Sleep Apnoea
15. Sports Performance
16. Closing Seminar
17. After Seminar Questions


Also see Hyperventilation Nasal breathing Buteyko method normalbreathing.com Close Your Mouth, summary.