“Obese Equals Lazy?” Analysis of the Association between Weight Status and Physical Activity in Children
Table 2
Characteristics of the study population.
(a)
N = 92
“Nonoverweight”
“Overweight”
P values
n = 37
n = 55
Anthropometry
Age (y)
P = 0.04
Height-SDS
P = 0.26
Weight-SDS
P ≤ 0.001
BMI-SDS
P ≤ 0.001
BMI
P ≤ 0.001
Sex (boys/girls)
♂37.84%, ♀62.16%
♂36.36 %, ♀63.64 %
Age in years, height-SDS, weight-SDS, Body-Mass-Index-Standard Deviation Score and BMI expressed as mean ± standard deviation. Sex (boys and girls) was expressed in percentage.
(b)
N = 92
“Nonoverweight”
“Overweight”
n = 37
n = 55
Activitya (min)
WD
WE
WD
WE
Passive time
329.5 (300; 395)**
349.7 (299; 399)
400.5 (362; 441)
390.7 (307; 468)
Active time
510.5 (445; 540)**
490.3 (441; 540)
439.5 (399; 478)
449.2 (372; 533)
Activity levels (min)
“rest”
327 (274; 383)**
341.0 (287; 401)*
417.2 (265; 468)
390.0 (298; 457)
“low”
270.5 (236; 300)*
252.2 (202; 284)
244.6 (210; 275)
243.7 (214; 284)
“moderate”
155.5 (134; 193)**
168.5 (134; 196)
129.3 (99; 150)
144.2 (105; 194)
“high”
67.3 (42; 102)*
69.3 (42; 99)*
44.2 (26; 76)
51.0 (28; 81)
Screen-Time hoursb
WD
WE
WD
WE
TV (>60 min/day)
38.24%*
58.82%*
80%
85.29%
PC (>60 min/day)
2.94%**
2.94%**
37.14%
40%
Games (>60 min/day)
0%**
2.94%**
23.53%
44.12%
Spare-Time activityc
Homework (>60 min/day)
11.76%*
35.48%
Sports club member
70.59%
57.58%
Sports club (>3 days/wk)
28.0%*
0%
Outdoor sports (>6 days/wk)
47.06%*
28.13%
WD: weekday, WE: weekend. Daily activity time in minutes expressed as median (25th percentile; 75th percentile). Differences were significant (U-Test) between weight classes (**P < 0.001, *P < 0.05). Screen-time entertainment (more than 60 min/day) in percent (%) for television (TV), computer (PC), and computer games (Games). Differences were significant (Chi-square test) between weight classes (**P < 0.001, *P < 0.05). Spare time activity. Homework more than 60 min/day, Sports club membership, more than 3 sports club sessions per week. Outdoor: “how often does your child play outside per week?” (more than 6 times/week). Differences were significant (Chi-square test) between weight classes (**P < 0.001, *P< 0.05).