Table 1 Descriptive characteristic of the sample

Age (years)

10.47 (10.27; 10.67)

13.14 (12.97; 13.33) *

7.00

Weight (kg)

39.78 (38.51; 41.04)

52.45 (51.05; 53,90) *

1.99

Height (m)

1.43 (1.42; 1.44)

1.57 (1.56; 1.58) *

10.82

BMI (kg/m²)

19.98 (18.60; 19.35)

21.02 (20.58; 21.43) *

1.00

Screen time (min/day)

223.99 (208.47; 240.36)

232.87 (214.33; 251.22)

0.04

VO_2peak

(mL.min^− 1.kg^− 1)

44.16 (43.71; 44.59)

45.10 (44.47; 45.80) *

0.24

WC (cm)

64.00 (63.06; 65.00)

69.65 (68.59; 70.76) *

1.04

PHV (years)

-1.82 (-2.00; -1.64)

0.38 (0.20; 0.57) *

5.13

n (%)

BMI

Underweight

5 (1.2)

4 (1.0)

Normal Weight

239 (59.6)

243 (60.6)

Overweight

76 (19.0)

74 (18.5)

Obesity

81 (20.2)

80 (19.1)

WC Classification

Low risk

297 (74.1)

307 (76.6)

High risk

104 (25.9)

94 (23.4)

Screen time

≤ 2 h/day

150 (37.4)

148 (36.9)

>2 h/day

251 (62.6)

253 (63.1)

Sex

Male

177 (44.1)

Female

224 (55.9)

Ethnicity

White

316 (78.8)

Non-white

85 (21.2)