Table 1:

Activity counts/1000 average ± standard deviation during each of the last 3 hours of the active period for mice on iron-deficient or iron-sufficient diets treated with saline.

Hours before end of active period	2– 3 hours	1 – 2 hours	0 – 1 hour
Iron-sufficient diet	2.0 ± 0.7	2.1 ± 0.4	0.6 ± 0.4
Iron-deficient (ID) diet	3.8 ± 1.1*	2.5 ± 2.2	1.4 ± 0.2

^*Difference between iron-deficient and iron-sufficient p=0.002, t test, unequal variance

There were no other significant differences between diet groups(p<0.05).

Almost all of the animals on both iron-deficient and iron-sufficient diets had no rest times for the 2–3 and 1–2 hours before end of the active period these and showed no difference in rest minutes or epochs for the last hour before end of the active period.

Activity counts: Sum for each animal of number of gross body movements in each 6-minute period detected by the G2 E-Mitter telemetry. Average and SD total activity determined for 6 animals on iron-sufficient diet and 7 on iron-deficient diet.