Table 2.

Circadian locomotor activity profile and bout analysis (mean ± SEM) for all diet and lighting conditions for each genotype. Within the title of each column, the ‡ symbol refers to a diet difference, σ refers to a strain difference, and the X refers to an interaction. Different letters within each column indicate significant differences among each other at p < .05 (^ indicates at p = .061). For Bout Length and Counts per Bout, B6J > B6N and RC > HFD, also at p < .05.

Genotype	Photoperiod	Diet	Average Daily Activity (X)	Bout Length (min) (σ, ‡)	Counts per Bout (σ, ‡)	No. Bouts per Day (X)	Circadian Period (h) (X)	Alpha (h) (X)	Rhythm Power (X)
B6J	T = 24	RC	25.65 ± 2.91a	52.72 ± 3.49	334.67 ± 53.75	10.40 ± 0.40a	24 ± 0a	10.57 ± 0.44a	2331.38 ± 252.03a
B6J	T = 24	HF	21.89 ± 1.75b^	47.18 ± 5.49	294.49 ± 49.31	10.37 ± 0.79a	24 ± 0a	10.21 ± 0.41a	2449.09 ± 314.25a
B6J	T = 21	RC	26.38 ± 3.13a	41.52 ± 3.60	311.01 ± 49.91	11.31 ± 0.41a	21 ± 0b	2.92 ± 0.35b	872.08 ± 146.41b
B6J	T = 21	HF	20.96 ± 2.90b^	40.58 ± 2.21	264.76 ± 37.32	10.48 ± 0.30a	23.57 ± 0.52a	4.92 ± 0.83 c	678.48 ± 61.17b
B6N	T = 24	RC	19.59 ± 1.89 c	42.57 ± 2.51	221.79 ± 24.21	11.42 ± 0.42a	24 ± 0a	9.58 ± 1.48d	1298.86 ± 74.52 c
B6N	T = 24	HF	9.75 ± 0.53d	36.80 ± 1.36	114.76 ± 6.69	10.95 ± 0.65a	24 ± 0a	7.28 ± 0.48d	965.86 ± 76.76 c
B6N	T = 21	RC	16.74 ± 2.58 c	43.52 ± 4.25	196.39 ± 31.34	8.12 ± 0.49b	21.36 ± 0.39b	2.71 ± 0.72b	454.05 ± 100.78d
B6N	T = 21	HF	9.12 ± 1.22d	35.09 ± 3.21	136.09 ± 21.61	6.27 ± 0.32b	23.28 ± 0.60a	5.64 ± 1.03 c	498.89 ± 111.06d