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Table 1 Descriptive characteristics of included studies

From: The impact of exercise interventions concerning executive functions of children and adolescents with attention-deficit/hyperactive disorder: a systematic review and meta-analysis

Study Name (Year, Country/ Region)

Research Design

Participant Characteristics

Intervention Components

Outcome Measures

Main Findings

Participants (Age Range; Gender-M%; Diagnostic Methods)

Age (Control)

Sample Size (IG/CG)

Exercise Sessions

Setting

Program (Control)

Type

Intensity

Frequency

Length (mins)

Kang et al.a (2011, Korea) [77]

RCT

7–12; M-100%;

K-ARS-PT

8.4 ± 0.9

(8.6 ± 1.2)

28 (15/13)

Chronic

NR

Sports Therapy (Education)

CEE

NR

90-min/session, twice/wk

6 wk. (1080)

• WM: Digit Symbol Test

• CF: TMT

• WM+(p = 0.02)

• CF+(p = 0.04)

Chang et al.a (2012, Taiwan) [28]

RCT

8–13; M-93%;

DSM-4

10.45 ± 0.95

(10.42 ± 0.87)

40 (20/20)

Acute

Clinical

Running (Watching video)

AE

Moderate

30-min/session/

1 session (30)

• IC: Stroop

• CF: WCST

• IC+(p < 0.01)

• CF+(p < 0.05)

Verret et al.a (2012, Canada) [69]

nRCT

7–12; M-90%;

DSM-4

9.1 ± 1.1

21 (10/11)

Chronic

School

PA programs

CEE

MVPA (77% HRmax)

45-min/session, 3 times/wk

10 wk. (1350)

• IC: TEAC

• IC+(p = 0.05)

Gawrilow et al.a (2013, Germany) [75]

RCT

8–13; M-100%;

ICD-10

10.47 ± 1.49

47 (23/24)

Acute

Clinical

Trampoline (Coloring in pictures)

AE

Vigorous

5-min/session

1 session (5)

• IC: GNG

• IC+(p < 0.05)

Pontifex et al. (2013, USA) [67]

Crossover

8–10; M-70%,

DSM-4

9.46 ± 0.4

(9.8 ± 0.1)

40(20/20TD)

Acute

Clinical

Running (Reading)

AE

Moderate (65–75% HRmax)

20-min/session

1 session (20)

• IC: Flanker task

• IC+(d = 0.09)

Chang et al.a (2014, Taiwan) [72]

nRCT

5–10; M-85%;

DSM-4

8.78 ± 8.33

(8.19 ± 7.65)

27 (14/13)

Chronic

Community

Aquatic exercise

AE

Moderate

90-min/session, twice/wk

8 wk. (1440)

• IC: GNG

• IC+(p = 0.004)

Choi et al.a (2015, Korea) [73]

RCT

13–18; M-100%; DSM-4

15.8 ± 1.7

(16.0 ± 1.2)

30 (13/17)

Chronic

NR

Sports Therapy (Education)

CEE

Light (60% HRmax)

90-min/session, 3 times/wk

6 wk. (1620)

• CF: WCST

• CF+(p = 0.03)

Chuang et al. (2015, Taiwan) [74]

RCO

8–12; M-84%;

Psychiatric physician

9.42 ± 1.38

19

Acute

Clinical

Running (Watching video)

AE

MVPA (60% HRR)

30-min/session

1 session (30)

• IC: GNG

• IC+(p = 0.0039)

• shorter RT in Go

• stimuli

Piepmeier et al. (2015, USA) [66]

RCO

8–13; M-63%;

Single question

10.14 ± 1.96

(11.22 ± 2.43)

32 (14/18TD)

Acute

Clinical

Cycling (Watching video)

AE

Moderate

30-min/session

1 session (30)

• IC: Stroop

• CF: TMT

• WM: TOL

• IC+(p = 0.004)

• CF00(p > 0.05)

• WM00(p > 0.05)

Ziereis & Jansena (2015, Germany) [71]

RCT

7–12; M-74%;

ICD-10

IG1 9.2 ± 1.3

IG2 9.6 ± 1.6

(9.5 ± 1.4)

39 (IG112, IG211/16)

Chronic

Gym

G1: aerobic & motor skills; IG2: aerobic

AE & CEE

NR

60-min/session/wk

12 wk. (720)

• WM: DSFBT; LNST

• WM+(p < 0.0

• measured by LNST

Bustamante et al.a (2016, USA) [70]

RCT

6–12; M-69%:

DSM-4

9.4 ± 2.2

(8.7 ± 2.0)

34 (18/16)

Chronic

School

Cooperative games & sports (art project)

CEE

Moderate (75% HRmax)

90-min/session, 5 times/wk

10 wk. (4500)

• IC: STOPIT

• WM: AWMA

• IC+(d = 0.67)

• WM+(d = 0.29)

Hung et al. (2016, Taiwan) [76]

Crossover

8–12; M-97%;

ADHD test

10.24 ± 1.78

(10.20 ± 1.09)

34

Acute

Clinical

Running (Watching video)

AE

MVPA (50–70% HRR)

30-min/session

1 session (30)

• CF: Task Switching Paradigm

• CF+(p < 0.05)

• shorter RT in global

• switch costs

Memarmoghaddam et al.a (2016, Iran) [64]

RCT

7–11; NR

SNAP-4

8.31 ± 1.29

(8.29 ± 1.31)

36 (19/17)

Chronic

Gym

AE & goal-directed exercise

CEE

MVPA (65–80% HRR)

90-min/session, 3 times/wk

8 wk. (2160)

• CF: Stroop

• IC: GNG

• CF+(p = 0.00)

• IC+(p = 0.00)

Pan et al.a (2016, Taiwan) [34]

RCT

6–12; M-100%;

DSM-4

8.93 ± 1.49

(8.87 ± 1.56)

32 (16/16)

Chronic

Gym

Table tennis

CEE

NR

70-min/session, twice/wk

12 wk. (1680)

• IC: Stroop

• IC+(p < 0.01)

Lee et al.a (2017, Korea) [61]

RCT

6–10; M-100%

DSM-4

8.83 ± 0.98

(8.83 ± 0.98)

12 (6/6)

Chronic

NR

Jump rope & ball skills

CEE

MVPA (45–75% HRR)

60-min/session, 3 times/wk

12 wk. (2160)

• IC: Stroop

• IC+(p < 0.01)

Ludyga et al. (2017, Switzerland) [62]

Crossover

11–16; M-62%;

DSM-4

12.8 ± 1.8

(13.5 ± 1.3)

34 (16/18TD)

Acute

Clinical

Cycling & Coordinative exercise (Watching video)

AE & CEE

Moderate (65–70% HRmax)

20-min/session

1 session (15)

• IC: Flanker task

• IC+(p < 0.001)

• decrease of RT

• following exercise

Benzing et al.a (2018, Switzerland) [50]

RCT

8–12; M-83%;

ICD-10

10.46 ± 1.35

(10.50 ± 1.41)

46 (24/22)

Acute

Home

Exergaming (Watching video)

CEE

MVPA

15-min/session

1 session (30)

• WM: CSB

• IC: Flanker task

• CF: Flanker task

• WM00(p = 0.995)

• IC+(p < 0.05)

• CF+(p < 0.05)

Benzing & Schmidta (2019, Switzerland) [60]

RCT

8–12; 84%;

ICD-10

10.46 ± 1.30

(10.39 ± 1.44)

51 (28/23)

Chronic

Home

Exergaming (Watching video)

CEE

MVPA

30-min/session, 3 times/wk

8 wk. (720)

• WM: CSB

• IC: Simon task

• CF: Flanker task

• WM00(p = 0.482)

• IC+(p < 0.049)

• CF+(p < 0.029)

Pan et al.a (2019, Taiwan) [65]

nRCT

7–12; M-100%;

DSM-4

9.08 ± 1.43

(8.90 ± 1.66)

TD 9.14 ± 1.54

60 (15IG/15CG/30TD-CG)

Chronic

Gym

Table tennis

CEE

NR

70-min/session, twice/wk

12 wk. (1680)

• IC: Stroop

• CF: WCST

• IC+(p = 0.41)

• CF+(p < 0.05)

Silva et al.a (2019, Brazil) [68]

RCT

11–14, M-70%,

DSM-4

12.0 ± 2.0

(12.0 ± 1.0)

20 (10/10)

Chronic

Community

Swimming

AE

NR

45-min/session, twice/wk

8 wk. (720)

• CF: The Test of Trails

• CF+(p = 0.042)

Ludyga et al. (2020, Switzerland) [63]

Crossover

11–16; M-65%;

DSM-5

12.8 ± 1.8

(13.5 ± 1.3)

34 (16/18TD)

Acute

Clinical

Cycling (Watching video)

AE

Moderate (65–70% HRmax)

20-min/session

1 session (20)

• CF: The Alternate Uses Task

• CF+(p = 0.43)

• higher task performance scores following exercise

  1. ACT Assisted Cycling Therapy, AE aerobic exercise, AWMA Automated Working Memory Assessment System, CBTT Corsi block-tapping task, CEE cognitively engaging exercise, CF cognitive flexibility, CG control group, CTT Color Trails Test, CSB color span backwards, DSFBT Digit span forward and backward test, DSM-4 and-5 Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition and Fifth Edition, GARS-2 the Gilliam Autism Rating Scale, 2nd edition, GNG Go-No-Go task, IC inhibitory control, ICD-10 International Classification of Diseases, Tenth Revision, IG intervention group, K-ARS-PT Korean version of the parent and teacher version of DuPaul’s ADHD Rating Scale, LNST Letter–number-sequencing task, NR no report, NYG Nei Yang Gong, PPT pre-post-test, RCO Randomized crossover, RCT Randomized Control Trial, SNAP-4 Swanson, Nolan and Pelham Rating Scale, Fourth Edition, STOPIT Stop-Signal Inhibition Task, TD typical developing children, TEAC Test of Everyday Attention for Children, TMT Trail Making Test, TOL Tower of London, VC Voluntary Cycling, WCST Wisconsin Card Sorting Test, WM working memory, %HRmax Percentage of maximal heart rate, %HRR Percentage of heart-rate reserve (i.e., the training intensity zone is based on the ACSM Guideline 2018)
  2. a Studies included in the meta-analysis; +: significant statistical improvement; 00: no statistically significant change