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Table 2 NIBS parameters in the reviewed studies

From: Safety and effectiveness of non-invasive brain stimulation on mobility and balance function in children with cerebral palsy: a systematic review and meta-analysis

Intervention type

Study name

Group condition

Stimulation parameters

Measurement time

Outcome measures

Stimulation site

Stimulation intensity 、duration

and frequency

Sessions

tDCS

Grecco et al.,2015

IG:n = 10 active tDCS + VR

CG:n = 10 sham tDCS + VR

Anode: the primary motor cortex of the contralateral hemisphere to lower limb with greater motor impairment

Cathode: over the supraorbital region on the contralateral side

1 mA

20 min

5 times per week for 2 weeks

10

1: immediately following intervention

2: post-intervention

3:one mouth follow-up

Gait parameters

GMFM

PEDI

Fajardo et al.,2022

IG:n = 14 active tDCS + NDT

CG:n = 10 only NDT

Anodal: over the leg area of the primary motor cortex which was opposite to the lower limb with greater motor impairment

Cathode: over the supra-orbital region on the opposite side

1 mA

20 min

3 times per week for 5 weeks

15

1: immediately following intervention

2: post-intervention

3:one mouth follow-up

GMFM

MAS

Grecco et al.,2014a

IG:n = 12 active tDCS + treadmill training

CG:n = 12 sham tDCS + treadmill training

Anodal: over the primary motor cortex of the dominant hemisphere

Cathode:over the supra-orbital region on the contralateral side

1 mA

20 min

5 times per week for 2 weeks

10

1:one week before the intervention

2:one week after the intervention

3:one mouth follow-up

6MWT

GMFM

Gait parameters

Elsadany et al.,2019

IG:n = 20 activetDCS + PT + gait training

CG:n = 20 sham tDCS + PT + gait training

Anodal: targeting right and left lower limb motor cortices (Cz)

Cathode: positioned over the inion

1 mA

20 min

5 times per week for 2 weeks

10

1: before intervention

2: two weeks after intervention

3:12 weeks follow-up

Gait parameters

Radwan et al.,2023

IG:n = 20 active tDCS + PT

CG:n = 20 VR + PT

Anodal: corresponds to the motor of lower limb motor cortices (Cz)

Cathode: positioned over the inion

1 mA

20 min

5 times per week for 2 weeks

10

1: before the intervention

2: post-intervention

3: ten weeks after intervention

Spatiotemporal parameters

Kinetic parameters

Grecco et al.,2017

IG:n = 3 active tDCS + treadmill training

CG:n = 3 sham tDCS + treadmill training

Anodal: the cerebellar region

Cathode: over the central supraorbital region

1 mA

20 min

5 times per week for 2 weeks

10

1:one week before intervention

2:one week after intervention

3:one month follow-up

4: three months follow-up

COP

PBS

PEDI

Duarte et al.,2014

IG:n = 12 active tDCS + treadmill training

CG:n = 12 treadmill training + sham tDCS

Anodal: over the primary motor cortex of the non-dominant hemisphere

Cathode: over the supra-orbital region on the contralateral side

1 mA

20 min

5 times per week for 2 weeks

10

1:one week before intervention

2:one week after intervention

3:one mouth follow-up

COP

PBS

PEDI

Lazzari et al.,2017

IG:n = 10 active tDCS + VR

CG:n = 10 sham tDCS + VR

Anodal: over the primary motor cortex

Cathode: over the supra-orbital region on the contralateral side

1 mA

20 min

5 times per week for 2 weeks

10

1: before the intervention

2: immediately following intervention

3:one mouth follow-up

COP

PEDI

TUG

Grecco et al.,2014b

IG:n = 10 active tDCS

CG:n = 10 sham tDCS

Anodal: over the primary motor cortex of the dominant hemisphere

Cathode: over the supra-orbital region on the contralateral side

1 mA

20-min

1

1: before the intervention

2: immediately following intervention

COP

Gait parameters

Lazzari et al.,2015

IG:n = 6 active tDCS + mobility training + VR

CG:n = 6 sham tDCS + mobility training + VR

Anode: over the primary motor cortex

Cathode: over the supra-orbital region on the contralateral side

1 mA

20 min

1

1: before intervention

2:immediately following intervention

COP

Grecco et al.,2023

IG:n = 15 active tDCS + dual task(treadmill gait training and training of intellectual activities)

CG:n = 15 sham tDCS + dual task(treadmill gait training and training of intellectual activities)

Anode: over the primary motor cortex that manages the control of the trunk and lower limbs (Cz)

Cathode: over the left deltoid muscle

1 mA

20 min

10

1: before the intervention

2: immediately following intervention

3: one mouth follow-up

GMFM

TUGT

PEDI

6MWT

rTMS

Valle et al.,2007

IG:n = 6, 1 Hz active rTMS

n = 5, 5 Hz active rTMS

CG:n = 6 sham rTMS

M1(controls the leg on the non-affected hemisphere)

1 Hz:1500 pulses

5 Hz:1500 pulses

an intensity of 90% RMT

5

1: before intervention

2: 20 min after intervention

MAS

PEDI

ROM

Dadashi et al.,2019

IG:n = 2 rTMS

CG:n = 2 sham rTMS

M1 (on the affected hemisphere)

1 Hz frequency

20 min

1200 pulses

4 times per week for 6 weeks

an intensity of 100% RMT

24

1: before intervention

2: post-intervention

COP

Marzbani et al.,2018

IG:n = 2 rTMS + lower limb OT

CG:n = 2 sham rTMS + lower limb OT

M1 (controls the leg on the affected hemisphere)

1 Hz frequency

20 min

1200pulses

4 times per week for 3 weeks

an intensity of 100% RMT

12

1: before intervention

2: post-intervention

10MWT

6MWT

TUGT

Mahgoub et al.,2021

IG:n = 15 rTMS + ST

CG:n = 15 sham rTMS + ST

M1 (controls the leg on the non-affected hemisphere)

10 Hz frequency

15 min

1500 pulses

an intensity of 100% RMT

20

1: before intervention

2: 3 months after intervention

Gait parameters

He Y et al.,2024

IG:n = 15 conventional PT

CG:n = 16 sham rTMS + conventional PT

M1 (on the non-affected hemisphere of the head)

1 Hz frequency

20 min

5 times per week for 4 weeks

an intensity of 90% RMT

20

1: before intervention

2: post-intervention

10MWT

6MWT

GMFM

Gait parameters

MAS

  1. IG Intervention Group; CG Control Group; VR Virtual Reality; NDT Neurodevelopmental Treatment; PT Physical Therapy; ST Standard Therapy; OT Occupational Therapy; M1 Primary motor area; Cz Central zero; ROM Range of Motion; RMT Resting Motor Threshold