Table 3.

Select functional mobility tests and gait variables based on BMI stratum and gender. Values are means ± SD

	Overweight		Moderately Obese		Severely Obese
	Men	Women	Men	Women	Men	Women	Sig
Walking endurance (min)	14.3 ± 3.3	14.2 ± 4.9	12.6 ± 4.2	11.6 ± 4.3	13.3 ± 4.9	9.9 ± 2.7
Chair rise time (sec)	0.8 ± 0.1	1.3 ± 0.5	0.8 ± 0.3	1.2 ± 0.5	1.0 ± 0.4	1.0 ± 0.3	b
Stair climb time (sec)	4.7 ± 0.7	5.8 ± 1.4	4.7 ± 1.1	6.3 ± 1.9	4.5 ± 0.7	7.3 ± 3.7	b
Walking velocity (cm/sec)	123 ± 11	116 ± 16	127 ± 30	109 ± 21	113 ± 17	97 ± 14	b
Stride length (cm)	140 ± 16	127 ± 18	125 ± 45	119 ± 15	132 ± 16	109 ± 17	b
Base of support (cm)	8.2 ± 3.5	8.5 ± 3.1	8.6 ± 3.7	11.1 ± 3.8	15.3 ± 4.8	11.0 ± 4.3	a, c
Double support time	28.4 ± 2.2	28.9 ± 3.2	30.2 ± 3.3	32.2 ± 4.3	33.5 ± 1.9	36.8 ± 4.7	a, b
(% of cycle)

Significance values: a = BMI effect; b = gender effect; c = interaction of BMI*gender at p<0.0