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* Subjects exposed hypoxia in a hypobaric chamber showed elevated EPO levels after 114 mins at 9,000 feet and or after 84 minutes at 12,000 feet. EPO levels continued to rise with longer exposure. <ref name="acu"/>
* Research using the AltoLab system showed a significant improvement in sprint speed. The study used 6 mins hypoxia (10,000 to 18,000 ft) with 4 min recovery for an hour a day for 15 days. The study shown a tiny improvement in blood parameters (hemoglobin/hematocrit) normally associated with altitude training.<ref name="alto"/>
* IHT increased lung force in asthmatic and non-asthmatic athletes. There was no deterioration in asthma status from the trial, and half of the asthmatics reported a reduction in the need for medication. The trial used 15 sessions over three weeks, with each session being 5 mins hypoxia followed by 5 mins normal air, repeated for 60 minutes. The hypoxia was equivalent to 22,500 ft.<ref name="asthmatic"/> Other studies have reported a similar improvement in asthma, with reduced attacks, reduced severity of attacks and reduced need for medicatin.
==See Also==
* [[Altitude Training]]
<ref name="jack">http://jap.physiology.org/cgi/content/full/96/5/1800 Intermittent normobaric hypoxia does not alter performance or erythropoietic markers in highly trained distance runners</ref>
<ref name="USSR">http://www.ncbi.nlm.nih.gov/pubmed/12162864 Intermittent hypoxia research in the former soviet union and the commonwealth of independent States: history and review of the concept and selected applications.</ref>
<ref name="asthmatic">http://www.hypoxico.com/images/pdfs/Does_IHT_effect_the_lung_function_of_asthmatic_athletes.pdf Does IHT effect the lung function of asthmatic athletes</ref>
</references>
