Table 1. Characteristics of 31 women in early (P1) and advanced (P2) pregnancy and at 2 (P3) and 6 (P4) months postpartum.^* .

	Gestation (weeks)	BMI (kg/m2)	Body mass (kg)	Stance width (mm)	Sleep length (h)
P1	13.1±2.5	21.9±2.5	60.3±8.9	277±5.8	8.6±1.7
P2	36.2±1.2	26.5±2.9	72.8±10.3	299±29.7	7.5±1.2
	Postpartum (weeks)
P3	7.8±1.4	23.0±2.7	63.2±9.6	276±28.9	6.6±1.5
P4	26.1±0.7	22.2±2.6	61.0±9.4	280±27.2	6.8±1.8

* Data are shown as means ± SD. BMI–body mass index