| This can occur when the training load used in normoxia is maintained during the altitude stage. |
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| SpO2 was maintained under hyperoxia conditions, while it decreased under normoxia conditions. |
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| However, caution is urged when interpreting pulse oximetry to differentiate between hyperoxemia and normoxia. |
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| Weak immunoreactivity for NOS2 in the normoxia plus saline group was present in bronchiolar and vascular smooth muscle, bronchiolar epithelium, and Clara cells. |
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