Table 2.

Gene expression ratios.

	Gene	Tissue	Expression ratio (AU)		P value
			C57L/J (high-active)	C3H/HeJ (low-active)
Wheel exposed	Actn2	sol	1.1 ± 0.32	0.95 ± 0.22	0.55
	Casq1	sol	0.85 ± 0.04	1.17 ± 0.04	0.0003*
	Glut4	sol	0.94 ± 0.07	1.08 ± 0.13	0.2
	Lepr	sol	1.0 ± 0.27	1.05 ± 0.26	0.85
	Mstn	sol	0.59 ± 0.05	1.7 ± 0.14	0.002*
	Actn2	NA	0.14 ± 0.12	0.44 ± 0.53	0.13
	Casq1	NA	0.16 ± 0.14	0.12 ± 0.05	0.64
	Glut4	NA	0.17 ± 0.10	0.2 ± .07	0.58
	Lepr	NA	1.77 ± 2.47	1.33 ± 0.73	0.72
	Mstn	NA	0.12 ± 0.07	0.22 ± 0.22	0.37
Naïve	Actn2	sol	1.27 ± 0.96	1.33 ± 1.1	0.58
	Actn3	sol	1.25 ± 0.94	1.35 ± 1.57	0.58
	Casq1	sol	1.05 ± 0.54	0.79 ± 0.40	0.4
	Glut4	sol	1.22 ± 0.56	0.89 ± 0.19	0.22
	Lepr	sol	0.94 ± 0.66	1.03 ± 0.40	0.82
	Mstn	sol	0.98 ± 0.58	1.38 ± 0.55	0.27
	Drd2	NA	1.69 ± 0.85	0.80 ± 0.47	0.06
	Lepr	NA	0.35 ± 0.09	0.26 ± 0.10	0.18
	Mc4r	NA	0.88 ± 0.19	1.21 ± 0.36	0.08
	Papss2	NA	1.17 ± 0.33	0.97 ± 0.48	0.4

Gene expression ratio was calculated from Pfaffl [36]. Values are described as mean ± SD; “sol” indicates soleus; “NA” nucleus accumbens. *Indicates differential expression of gene between strains.