Table 2.

Organ weights and run time to exhaustion

		Thymus		Adrenals		Spleen		Time to exhaustion
	N	g	g/g bw	g	g/g bw	g	g/g bw	min	n
Sedentary	6	0.317 ± 0.04	0.97 ± 0.05	0.053 ± 0.004	0.16 ± 0.01	0.69 ± 0.04	2.08 ± 0.10	36.17 ± 0.31	6
TT	3	0.244 ± 0.01a	0.93 ± 0.07	0.06 ± 0.005	0.22 ± 0.01a	0.66 ± 0.04	2.54 ± 0.23a	69.40 ± 5.34a	5
FW	3	0.226 ± 0.04a	1.04 ± 0.17	0.055 ± 0.003	0.25 ± 0.02a,b	0.68 ± 0.02	3.13 ± 0.19a,c	56.50 ± 11.54	6
VW	4	0.277 ± 0.02	1.10 ± 0.07	0.05 ± 0.003	0.20 ± 0.01a	0.62 ± 0.02	2.43 ± 0.11	82.0 ± 16.62a	4
VW-m	2	0.259 ± 0.01	1.04 ± 0.09	0.054 ± 0.009	0.22 ± 0.03a	0.70 ± 0.01	2.78 ± 0.12a	90.0 ± 29.16a	3

Mean values are ±SEM; bw, body weight.

^aP < 0.05 relative to sedentary;

^bP < 0.05 relative to voluntary wheel run;

^cP < 0.05 relative to treadmill trained and voluntary wheel run.