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Figure 1 | Journal of Physiological Anthropology

Figure 1

From: Relationship between mitochondrial haplogroup and seasonal changes of physiological responses to cold

Figure 1

Changes in VO 2 (ΔVO 2 ). White circles connected by the solid line indicate summer data associated with haplogroup D (n = 8) and white triangles connected by the dotted line indicate summer data associated with haplogroup non-D (n = 9). Black circles connected by the solid line indicate winter data associated with haplogroup D (n = 8) and black triangles connected by the dotted line indicate winter data associated with haplogroup non-D (n = 9). ΔVO2 of haplogroup D was significantly higher than that of haplogroup non-D during the period ranging from 90 to 100 minutes in winter. ΔVO2 of haplogroup D was significantly higher during the period ranging from 40 to100 minutes in winter than it was during that same period in summer. ΔVO2 of haplogroup non-D was significantly higher at both 70 minutes and 100 minutes in winter than it was at those same intervals in summer. *P < 0.05, comparisons between haplogroups D and non-D in winter. #P < 0.05, comparisons between haplogroup D values taken in summer and winter. §P < 0.05, comparisons between haplogroup non-D values taken in summer and winter.

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