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. Author manuscript; available in PMC: 2006 Sep 1.
Published in final edited form as: J Gerontol A Biol Sci Med Sci. 2006 Jun;61(6):534–540. doi: 10.1093/gerona/61.6.534

Figure 1. Effects of exercise on skeletal muscle mitochondria DNA content.

Figure 1

mtDNA copy number in total mitochondria fraction relative to diploid nuclear genome before (gray bars) and after (black bars) exercise training; * denotes significant (P<0.01) change determined by paired t-test; n=7; data are presented as means ± standard error of the mean.