Clinical Study

Independent Benefits of Meeting the 2008 Physical Activity Guidelines to Insulin Resistance in Obese Latino Children

Table 1

Subject characteristics.

Insulin sensitive ( 𝑛 = 5 3 )Insulin resistant* ( 𝑛 = 6 1 )

Age (y) 1 1 ± 2 1 2 ± 2
Sex (% male)5844
BMI (kg/m2) 2 9 . 3 ± 5 . 4 5 3 1 . 0 ± 4 . 9
Fat mass (kg) 3 0 . 0 ± 1 1 . 6 3 2 . 2 ± 1 0 . 0
Body fat (%) 4 2 . 2 ± 5 . 7 4 3 . 3 ± 5 . 5
Waist circ. (Z score) 1 . 4 6 ± 0 . 6 5 1 . 5 8 ± 0 . 6 4
Tanner score22
REE (kcal/kg) 3 5 . 7 ± 1 6 . 4 2 9 . 2 ± 1 1 . 7 a
Fasting RER 0 . 8 6 ± 0 . 0 7 0 . 8 8 ± 0 . 0 7
Acculturation score 3 2 ± 7 3 5 ± 7 b

*Based on a 2 h postchallenge insulin concentration greater than 64 μU/mL (median value); a 𝑃 < 0 . 0 1 ; b 𝑃 < 0 . 0 5 . BMI: body mass index; body fat determined by DXA; A Tanner score of 2: mid prepubertal; REE: resting energy expenditure; RER: respiratory exchange ratio.