Fig. 2From: Relationship between mitochondrial haplogroup and physiological responses to hypobaric hypoxiaChanges in SpO2 (means ± standard error) in haplogroups D (black squares; n = 18) and M7+G (white circle; n = 10). * p < 0.05 comparing D and M7+G. SpO2 at 60–75 min after the beginning of the experiment was significantly higher in haplogroup D than in haplogroup M7+G subjectsBack to article page