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. 2004 Aug 19;560(Pt 2):577–586. doi: 10.1113/jphysiol.2004.072033

Figure 1. Changes of PO2 levels in the chamber induced by the hypoxic challenge.

Figure 1

The hypoxic pattern consisted of 90 s of 100% N2 (▪) followed by 270 s of room air (□), repeated 10 times h−1 8 h day−1 for 4 days. PO2 reached a minimum of about 75 Torr during hypoxia. The level of PO2 in the chamber was monitored with an oxygen analyser.