Table 2. Main effects of exercise on circadian behavioral phenotypes.

	Exercise		main-effects
Characteristic	Wheel Open	Wheel Locked	d.f.	t or Z	p
IR Behavioral - LD
Onset (ZT)	11.82±0.05	11.75±0.08	38	1.338	0.189
OnsetError (h)	0.201±0.019	0.243±0.021	38	−2.605	0.013
Offset (ZT)	0.936±0.171	0.844±0.143	38	0.943	0.352
OffsetError (h)	0.283±0.020	0.355±0.021	38	−2.5	0.017
Duration (h)	13.07±0.213	13.06±0.207	37	0.047	0.963
Power (AU)	1611.6±72.90	1336.1±48.59	38	2.847	0.004
% Light Activity	50.12±1.18	48.32±2.08	38	1.341	0.188
Average Activity (counts/min)	1.238±0.113	1.196±0.081	38	0.626	0.535
Total Activity (counts/day)	1803.5±165.1	1734.1±116.4	38	0.703	0.486
Periodic Component Ratio (AU)	0.310±0.03	0.267±0.03	38	2.349	0.024
IR Behavioral - DD
Period (h)	23.74±0.022	23.71±0.022	38	2.036	0.049
OnsetError (h)	0.420±0.042	0.454±0.042	38	−0.579	0.566
OffsetError (h)	0.512±0.026	0.615±0.030	38	−2.662	0.011
Duration (h)	14.64±0.285	14.54±0.309	38	0.535	0.595
Power (AU)	1307.4±74.41	1076.5±41.65	38	−2.805	0.005
Average Activity (counts/min)	1.209±0.071	1.114±0.056	38	1.822	0.076
Total Activity (counts/day)	1736.5±101.8	1596.8±79.3	38	1.849	0.072
Periodic Component Ratio (AU)	0.395±0.03	0.383±0.03	37	0.655	0.516

Activity monitored by infrared motion detector in LD and DD. Significance is ascribed at p ≤0.05.