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. 2017 Jan 12;5:e2883. doi: 10.7717/peerj.2883

Table 1. Demographic characteristics of the participants.

Variable Exercise group (n = 24; M [SD]) Control group (n = 25; M [SD]) Total (n = 49; M [SD])
Gender (male: female) 19:5 19:6 38:11
Age (years) 10.71 [1.00] 10.30 [1.07] 10.50 [1.05]
Height (cm) 143.71 [9.42] 143.08 [9.43] 143.39 [9.33]
Weight (kg) 39.88 [7.48] 40.00 [6.96] 39.94 [7.14]
BMI (kg/m2) 19.15 [1.97] 19.50 [2.81] 19.33 [2.41]
IQ (score) 100.79 [6.96] 102.32 [9.98] 101.57 [8.58]
Physical fitness (T score) 49.70 [.50] 50.48 [3.67] 50.10 [3.57]
Cardiovascular fitness (second) 282.90 [28.09] 289.70 [30.64] 286.37 [29.31]
Muscular strength (cm) 128.79 [8.58] 126.96 [9.91] 128.35 [9.29]
Muscular endurance (times) 22.79 [3.41] 23.12 [3.44] 22.96 [3.39]
Flexibility (cm) 25.45 [3.87] 25.76 [3.89] 25.61[3.84]
Grade (n )
Third 1 4 5
Fourth 11 10 21
Fifth 7 7 14
Sixth 5 4 9
ADHD type (n)
ADHD-I 12 8 20
ADHD-HI 7 13 20
ADHD-C 5 4 9
Medication (n) 10 12 22

Notes.

BMI
body mass index. The IQ (intelligence quotient) score was assessed by the Wechsler Intelligence Scale for Children-IV
ADHD-I
predominantly inattentive subtype
ADHD-HI
predominantly hyperactive-impulsive subtype
ADHD-C
combined hyperactive-impulsive and inattentive subtype