Im not sure i want to buy one after reading this article , it appears nasal devices only offer a psychological edge according to the article. Nasal strips work the same as the Rhinomed Turbine so the same outcomes would be assumed.
http://www.pponline.co.uk/encyc/nasal-strips-do-breathing-techniques-improve-performance-111
"While there is no evidence that they offer any physiological benefits to athletes, the fact of allowing them to breathe more easily might offer a psychological edge during competition, especially for those with some kind of respiratory problem"
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