Table 3.

Heart rate variability in male and female offspring mice from lean and obese parents

Measure	NN Male	NH Male	HN Male	HH Male	NN Female	NH Female	HN Female	HH Female
RR, ms	119.0 ± 1.4	129.4 ± 8.4	119.0 ± 1.4	119.2 ± 5.6	109.5 ± 3.4	106.8 ± 4.7	115.2 ± 3.0	109.2 ± 5.2
SDNN, ms	17.7 ± 1.0	16.3 ± 1.6	14.0 ± 1.5	13.1 ± 1.0	10.9 ± 2.3	119.0 ± 1.4	10.5 ± 1.6	13.2 ± 2.7
RMSSD, ms	9.8 ± 1.4	11.0 ± 1.9	5.8 ± 1.0*#	5.9 ± 1.0*#	4.9 ± 1.0	3.3 ± 1.0	5.5 ± 2.0	5.3 ± 1.0
CV%	14.9 ± 0.6	14.5 ± 2.4	11.9 ± 1.3	11.8 ± 0.9	9.7 ± 1.7	11.0 ± 2.1	14.1 ± 1.7	11.7 ± 1.9

Data are means ± SE. *P < 0.05 compared with NN; #P < 0.05 compared with NH. CV%, coefficient of variance (100 × (SDNN/mean RR)); HRV, heart rate variability; N, normal; NH, offspring from lean (N) parents that were fed high-fat (H) diet after weaning; NN, offspring from lean normal (N) diet-fed parents that were also fed an N diet after weaning; RMSSD, root mean square of successive difference; RR, the intervals from systolic peak; SDNN, standard deviation of all R-R intervals.