Table 1.

Effect of voluntary exercise for 2 weeks on the weight of the parametrial fat pads and the thickness of the dermal fat layer in SKH-1 mice

Group	Body weight, g		Weight of parametrial fat pads, g per mouse		Thickness of dermal fat layer, μm
	Exp. 1	Exp. 2	Exp. 1	Exp. 2	Exp. 1	Exp. 2
No running wheel	26.2 ± 0.61	25.1 ± 0.54	0.81 ± 0.10	0.52 ± 0.07	65 ± 5	57 ± 4
Running wheel	26.4 ± 0.45	24.1 ± 0.63	0.35 ± 0.02*	0.17 ± 0.02*	34 ± 5*	37 ± 3*
% decrease	0	4	57	67	48	35

Female SKH-1 mice (7–8 weeks old, 10 mice per group) were housed in a cage with or without a running wheel for 2 weeks. The two parametrial fat pads were weighed, and the thickness of the dermal fat layer was measured by using an ocular micrometer with an Olympus BHTU light microscope under ×100 magnification at 5–10 representative areas per slide and averaged. Each value represents the mean ± SE. ∗, P < 0.01.