Effect of Bilateral TENS With TOT on Upper Limb Function in Patients With Chronic Stroke

Sponsor
The Hong Kong Polytechnic University (Other)
Overall Status
Completed
CT.gov ID
NCT03112473
Collaborator
(none)
120
1
4
47
2.6

Study Details

Study Description

Brief Summary

On the basis that the combined use of Uni-TENS and TRT is an effective intervention in upper limb recovery, and the advantage of Bi-TENS eliciting extra neural pathway in the intact hemisphere to facilitate the motor recovery, There is a research gap in whether the Bi-TENS over both the paretic and non-paretic limbs could probably augment the treatment effects of TOT in upper limb motor control in people with stroke.

Condition or Disease Intervention/Treatment Phase
  • Behavioral: Task-orientated training
  • Device: Transcutaneous electrical nerve stimulation (TENS)
  • Device: Sham electrical nerve stimulation
N/A

Detailed Description

The purpose of this study is to determine whether Bi-TENS+TOT was superior to Uni-TENS+TOT, Placebo-TENS+TOT alone and no active treatment in improving the upper limb motor control and upper limb function and community integration in people with chronic stroke.

The null hypothesis will be that Bi-TENS+TOT is not significantly different from Uni-TENS+TOT,Placebo-TENS+TOT alone and no active treatment in improving the upper limb motor control and upper limb function and community integration in people with chronic stroke.

Study Design

Study Type:
Interventional
Actual Enrollment :
120 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
Parallel AssignmentParallel Assignment
Masking:
Double (Participant, Outcomes Assessor)
Masking Description:
The participant and outcome assessor were blinded to the group allocation
Primary Purpose:
Treatment
Official Title:
A Randomized, Controlled Clinical Trial of Upper Limb Training With Bilateral Cutaneous Electrical Stimulation to Improve Upper Limb Functions in Patients With Chronic Stroke
Actual Study Start Date :
Nov 24, 2016
Actual Primary Completion Date :
Oct 24, 2020
Actual Study Completion Date :
Oct 24, 2020

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: Bilateral TENS (Bi-TENS) group

All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation

Behavioral: Task-orientated training
Task-Oriented Training (TOT) is a goal-directed exercise therapy, which help the people derive optimal control strategies for solving specific motor problems in real environment. In this study, TOT included stretching exercises, mobilizing exercise, strengthening exercises, seated reaching tasks, dexterity training and bimanual practice.

Device: Transcutaneous electrical nerve stimulation (TENS)
The stimulator was 120z Dual-Channel TENS Unit (ITO PHYSITHERAPY&REHABILITION CO., LTD, Tokyo, Japan). The parameter (100 Hz, 0.2 ms square pulses, intensity barely below the motor threshold) of TENS followed our previous study

Placebo Comparator: Unilateral TENS (uni-TENS) group

All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side and sham electrical stimulation on the non-paretic side

Behavioral: Task-orientated training
Task-Oriented Training (TOT) is a goal-directed exercise therapy, which help the people derive optimal control strategies for solving specific motor problems in real environment. In this study, TOT included stretching exercises, mobilizing exercise, strengthening exercises, seated reaching tasks, dexterity training and bimanual practice.

Device: Transcutaneous electrical nerve stimulation (TENS)
The stimulator was 120z Dual-Channel TENS Unit (ITO PHYSITHERAPY&REHABILITION CO., LTD, Tokyo, Japan). The parameter (100 Hz, 0.2 ms square pulses, intensity barely below the motor threshold) of TENS followed our previous study

Device: Sham electrical nerve stimulation
A identical-looking TENS devices that electrical circuit has been disconnected.

Placebo Comparator: Placebo group

All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation

Behavioral: Task-orientated training
Task-Oriented Training (TOT) is a goal-directed exercise therapy, which help the people derive optimal control strategies for solving specific motor problems in real environment. In this study, TOT included stretching exercises, mobilizing exercise, strengthening exercises, seated reaching tasks, dexterity training and bimanual practice.

Device: Sham electrical nerve stimulation
A identical-looking TENS devices that electrical circuit has been disconnected.

No Intervention: Control group

No Active intervention

Outcome Measures

Primary Outcome Measures

  1. Fugl Meyer Assessment on Upper Extremity (FMA-UE) [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    FMA-UE was used for evaluating the upper limb motor control from proximal to distal part of the limb, and voluntary movement from synergistic to isolated in people with stroke. The FMA-UE has shoulder-arm, wrist, hand and coordination and speed subsections. The score of shoulder-arm, wrist, hand and coordination and speed sub-scale are combined to compute the total score. The maximum total score is 66, with 33 items and ordinal scoring from 0 to 2. A higher score of FMA-UE indicated a higher level of upper limb motor control.

Secondary Outcome Measures

  1. Jacket Test (JT) [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    Jacket Test is one of the items in the Physical Performance Test. The subject is required to don a jacket or a cardigan sweater such that it is straight on his or her shoulders, and then remove it completely. The time for completing the task is recorded.(Rueben DB et al, 1990) This Jacket Test (JT) can be used to evaluate the functional mobility of the upper limbs as the test involves abduction of the shoulder joint, flexion and extension of the elbow joint and gripping with the hands.

  2. Maximal Voluntary Contraction (MVC)-Peak Torque [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    The force data would be recorded by the self-made load cell. And the mean value peak torque of the joint would be calculated by the force and the length from the wrist joint to the head of 3rd metacarpal.

  3. Action Research Arm Test (ARAT) [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    ARAT will be used to assess the 4 aspects of upper limb function(grasp, grip, pinch and gross arm movement). This scale is consistent of 19 items. The quality of performance on each item is rated from 0-3, so the score of ARAT is ranged from 0-57. The score of rasp, grip, pinch and gross arm movement sub-scale are combined to compute the total score. The scores for the 15 tasks will be summed and then averaged to yield the mean functional ability score. A higher ARAT score indicated a higher upper limb motor function.

  4. The Range of Motion (ROM) of Upper Limb Joints [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    With 0° shoulder flexion and 90° elbow flexion, the forearm and wrist will be placed in a neutral position in the relaxed phase. When the task begins, the subjects will be asked to perform the full range of motion for wrist flexion/extension. With 90° shoulder flexion and 0° elbow flexion, the forearm will be placed in a neutral position in the relaxed phase. When the task begins, the subjects will be asked to perform the full range of motion for elbow flexion/extension. All the subjects will be requested to perform their joint ROM to the best of their abilities.

  5. Motor Activity Log (MAL) [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    The MAL questionnaire will be used to assess how frequently and how well a person uses the paretic upper limb in 30 activities of daily life in a semi-structured interview. Based on a six-point ordinal scale, subjects will be required to rate (1) the amount of use (AOU), and (2) the quality of movement (QOM) when performing these 30 tasks in real life situations. Each task was rated from 0 to 5. The score of the 30 activities of daily life were combined to compute the total score of MAL-AOU and MAL-QOM, respectively. Hence, the total score of AOU and QOM component were rated from 0 to 150. The higher MAL-AOU score indicated a higher frequency use of the paretic upper limb, and the higher MAL-QOM score indicated a higher movement quality of the paretic upper limb.

  6. Chinese Version of Community Integration Measure (CIM) [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    The Chinese version of CIM was used to assess the level of community integration of the subjects. The CIM-C has been shown to have good internal consistency and good test-retest reliability for people with stroke . CIM has 10 items, each item rate from 1-5, giving a minimum score of 10 to a maximum of 50. A higher score indicated a higher level of community integration.

  7. Maximal Voluntary Contraction (MVC)-Cocontraction Ratio [Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)]

    EMG signal of Radial Carpi Extensor and Ulnar Carpi Flexor for both affected and unaffected side would be recorded by the surface EMG electrodes when asked the subjects to perform the MVC of wrist extension and flexion for 5s in each trial. Each movement would perform 3 times. The data of the 3 trials will be averaged. The co-contraction ratio would be calculated by the iEMG area of antagonist to total (agonist+antagonist), which would be captured for 0.5s from the window began at 0.25s before and ended at 0.25s after the peak value of MVC.

Eligibility Criteria

Criteria

Ages Eligible for Study:
50 Years to 80 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Subjects will be recruited from local self-help groups through poster advertising.

  • Subjects will be included if they are between 50 and 80 years of age

  • Have been diagnosed with ischaemic brain injury or intracerebral hemorrhage by MRI or computed tomography within the previous 1 to 10 years

  • have volitional control of the non-paretic arm and at least minimal antigravity movement in the shoulder of the paretic arm,

  • have at least 5º in wrist extension in the antigravity position,

  • score > 6 out of 10 in the Abbreviated Mental Test, and

  • are able to follow instructions and give informed consent.

Exclusion Criteria:
  • • have any additional medical, cardiovascular or orthopedic condition

  • use a cardiac pacemaker

  • have receptive dysphasia

  • have a significant upper limb peripheral neuropathy

  • are involved in drug studies or other clinical trials, or

  • have severe shoulder, elbow, wrist or finger contractures that would preclude a passive range of motions of the arm, and

  • have a skin allergy that would prevent electrical stimulation.

Contacts and Locations

Locations

Site City State Country Postal Code
1 The Hong Kong Polytechnic University Hong Kong Hong Kong

Sponsors and Collaborators

  • The Hong Kong Polytechnic University

Investigators

None specified.

Study Documents (Full-Text)

More Information

Publications

None provided.
Responsible Party:
Shamay Ng, Associate Professor, The Hong Kong Polytechnic University
ClinicalTrials.gov Identifier:
NCT03112473
Other Study ID Numbers:
  • HMRF_SNg
First Posted:
Apr 13, 2017
Last Update Posted:
May 13, 2021
Last Verified:
Apr 1, 2021
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Shamay Ng, Associate Professor, The Hong Kong Polytechnic University
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation Task-orientated training: Bi/Uni/Placebo TENS and Task-orientated training on upper limb Transcutaneous electrical nerve stimulation (TENS) All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side Task-orientated training: Bi/Uni/Placebo TENS and Task-orientated training on upper limb Transcutaneous electrical nerve stimulation (TENS) All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation Task-orientated training: Bi/Uni/Placebo TENS and Task-orientated training on upper limb Sham electrical nerve stimulation No Active intervention
Period Title: Overall Study
STARTED 30 30 30 30
COMPLETED 30 30 30 30
NOT COMPLETED 0 0 0 0

Baseline Characteristics

Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group Total
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 7 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 7 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 7 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention Total of all reporting groups
Overall Participants 30 30 30 30 120
Age (Count of Participants)
<=18 years
0
0%
0
0%
0
0%
0
0%
0
0%
Between 18 and 65 years
23
76.7%
21
70%
23
76.7%
22
73.3%
89
74.2%
>=65 years
7
23.3%
9
30%
7
23.3%
8
26.7%
31
25.8%
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
60.37
(7.13)
62.30
(7.30)
61.70
(6.70)
61.70
(5.91)
61.52
(6.73)
Sex: Female, Male (Count of Participants)
Female
12
40%
13
43.3%
9
30%
10
33.3%
44
36.7%
Male
18
60%
17
56.7%
21
70%
20
66.7%
76
63.3%
Race (NIH/OMB) (Count of Participants)
American Indian or Alaska Native
0
0%
0
0%
0
0%
0
0%
0
0%
Asian
30
100%
30
100%
30
100%
30
100%
120
100%
Native Hawaiian or Other Pacific Islander
0
0%
0
0%
0
0%
0
0%
0
0%
Black or African American
0
0%
0
0%
0
0%
0
0%
0
0%
White
0
0%
0
0%
0
0%
0
0%
0
0%
More than one race
0
0%
0
0%
0
0%
0
0%
0
0%
Unknown or Not Reported
0
0%
0
0%
0
0%
0
0%
0
0%
Region of Enrollment (participants) [Number]
Hong Kong
30
100%
30
100%
30
100%
30
100%
120
100%
Fugl-Meyer Assessment of Upper Extremity (units on a scale) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [units on a scale]
37.03
(12.02)
41.83
(17.12)
38.77
(15.78)
43.93
(18.74)
40.39
(16.13)

Outcome Measures

1. Primary Outcome
Title Fugl Meyer Assessment on Upper Extremity (FMA-UE)
Description FMA-UE was used for evaluating the upper limb motor control from proximal to distal part of the limb, and voluntary movement from synergistic to isolated in people with stroke. The FMA-UE has shoulder-arm, wrist, hand and coordination and speed subsections. The score of shoulder-arm, wrist, hand and coordination and speed sub-scale are combined to compute the total score. The maximum total score is 66, with 33 items and ordinal scoring from 0 to 2. A higher score of FMA-UE indicated a higher level of upper limb motor control.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 30 30 30
Pre-intervention
37.03
(12.02)
41.83
(17.12)
38.77
(15.78)
43.93
(18.74)
Mid-intervention
41.27
(13.38)
43.60
(17.21)
40.13
(15.41)
44.87
(17.25)
Post-intervention
43.43
(13.73)
44.23
(16.12)
40.23
(14.97)
44.20
(18.16)
1-month followed up
42.60
(13.36)
42.70
(17.35)
40.90
(14.43)
45.03
(17.99)
3-month followed up
43.17
(13.61)
43.17
(18.65)
40.60
(14.67)
45.23
(17.77)
2. Secondary Outcome
Title Jacket Test (JT)
Description Jacket Test is one of the items in the Physical Performance Test. The subject is required to don a jacket or a cardigan sweater such that it is straight on his or her shoulders, and then remove it completely. The time for completing the task is recorded.(Rueben DB et al, 1990) This Jacket Test (JT) can be used to evaluate the functional mobility of the upper limbs as the test involves abduction of the shoulder joint, flexion and extension of the elbow joint and gripping with the hands.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
Nine subjects (Uni-TENS+TOT: 3; Placebo-TENS+TOT: 1; Control: 5) could not complete JT due to difficulty in maintaining the standing position without physical aids.
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 27 29 25
Pre-intervention
36.51
(12.44)
36.98
(22.02)
36.87
(17.53)
33.36
(21.39)
Mid-intervention
33.02
(13.66)
35.78
(20.92)
36.86
(15.53)
32.58
(23.41)
Post-intervention
32.55
(11.70)
30.67
(15.66)
34.71
(16.08)
34.08
(23.55)
1-month followed-up
33.35
(12.46)
32.83
(20.32)
34.24
(18.25)
31.47
(21.79)
3-month followed-up
32.00
(12.51)
32.54
(18.11)
34.24
(17.19)
31.77
(22.19)
3. Secondary Outcome
Title Maximal Voluntary Contraction (MVC)-Peak Torque
Description The force data would be recorded by the self-made load cell. And the mean value peak torque of the joint would be calculated by the force and the length from the wrist joint to the head of 3rd metacarpal.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 30 30 30
Peak Torque-wrist flexion-Pre-intervention
3.69
(1.79)
4.51
(2.63)
4.86
(2.82)
5.13
(2.29)
Peak Torque-wrist flexion-Mid-intervention
4.40
(1.90)
4.77
(2.74)
4.71
(2.74)
5.35
(2.68)
Peak Torque-wrist flexion-Post-intervention
5.10
(2.17)
4.74
(2.43)
4.94
(2.58)
5.39
(2.64)
Peak Torque-wrist flexion- 1-month followed up
4.86
(2.30)
4.85
(2.60)
5.17
(2.84)
5.57
(2.72)
Peak Torque-wrist flexion- 3-month followed up
5.08
(2.12)
4.89
(2.50)
5.28
(2.62)
5.70
(2.78)
Peak Torque-wrist extension-Pre-intervention
3.38
(1.95)
3.12
(2.36)
3.40
(2.17)
3.64
(2.64)
Peak Torque-wrist extension-Mid-intervention
3.62
(1.70)
3.10
(2.46)
3.41
(2.48)
3.55
(2.53)
Peak Torque-wrist extension-Post-intervention
3.77
(1.70)
3.58
(2.74)
3.81
(2.62)
3.71
(2.39)
Peak Torque-wrist extension- 1-month followed up
3.87
(1.89)
3.67
(2.82)
3.61
(2.35)
3.81
(2.34)
Peak Torque-wrist extension- 3-month followed
3.91
(1.98)
3.86
(2.76)
3.66
(2.86)
3.98
(2.67)
4. Secondary Outcome
Title Action Research Arm Test (ARAT)
Description ARAT will be used to assess the 4 aspects of upper limb function(grasp, grip, pinch and gross arm movement). This scale is consistent of 19 items. The quality of performance on each item is rated from 0-3, so the score of ARAT is ranged from 0-57. The score of rasp, grip, pinch and gross arm movement sub-scale are combined to compute the total score. The scores for the 15 tasks will be summed and then averaged to yield the mean functional ability score. A higher ARAT score indicated a higher upper limb motor function.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 30 30 30
Pre-intervention
28.70
(20.09)
31.73
(20.09)
28.30
(21.69)
34.97
(21.97)
Mid-intervention
31.27
(20.86)
33.93
(20.27)
29.40
(20.85)
35.30
(21.61)
Post-intervention
33.40
(19.77)
33.13
(20.80)
30.30
(21.65)
36.07
(22.85)
1-month followed-up
31.33
(19.24)
34.90
(19.74)
31.03
(21.83)
36.77
(21.79)
3-month followed-up
32.20
(20.12)
33.33
(21.17)
30.43
(21.97)
36.27
(22.29)
5. Secondary Outcome
Title The Range of Motion (ROM) of Upper Limb Joints
Description With 0° shoulder flexion and 90° elbow flexion, the forearm and wrist will be placed in a neutral position in the relaxed phase. When the task begins, the subjects will be asked to perform the full range of motion for wrist flexion/extension. With 90° shoulder flexion and 0° elbow flexion, the forearm will be placed in a neutral position in the relaxed phase. When the task begins, the subjects will be asked to perform the full range of motion for elbow flexion/extension. All the subjects will be requested to perform their joint ROM to the best of their abilities.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 30 30 30
Elbow-Pre
76.67
(28.89)
85.73
(27.30)
82.88
(24.01)
90.22
(33.36)
Elbow-Mid
84.70
(22.96)
84.33
(28.58)
86.75
(22.64)
79.28
(29.33)
Elbow-Post
87.70
(23.78)
88.47
(26.07)
83.60
(18.82)
86.75
(23.06)
Elbow-1-month followed-up
84.13
(30.91)
84.05
(29.51)
81.85
(23.81)
89.67
(26.64)
Elbow-3-month followed-up
85.13
(33.79)
89.90
(30.74)
81.95
(20.10)
87.02
(27.53)
Wrist-Pre
72.42
(40.84)
69.97
(49.52)
72.70
(44.04)
87.41
(48.28)
Wrist-Mid
71.43
(36.45)
74.77
(47.35)
62.23
(50.02)
87.72
(40.34)
Wrist-Post
73.83
(35.51)
75.42
(47.96)
69.77
(42.35)
90.07
(42.02)
Wrist-1-month followed-up
72.92
(37.84)
78.30
(48.23)
66.05
(38.46)
87.97
(46.11)
Wrist-3-month followed-up
70.67
(39.57)
78.32
(54.34)
71.18
(44.39)
90.78
(45.25)
6. Secondary Outcome
Title Motor Activity Log (MAL)
Description The MAL questionnaire will be used to assess how frequently and how well a person uses the paretic upper limb in 30 activities of daily life in a semi-structured interview. Based on a six-point ordinal scale, subjects will be required to rate (1) the amount of use (AOU), and (2) the quality of movement (QOM) when performing these 30 tasks in real life situations. Each task was rated from 0 to 5. The score of the 30 activities of daily life were combined to compute the total score of MAL-AOU and MAL-QOM, respectively. Hence, the total score of AOU and QOM component were rated from 0 to 150. The higher MAL-AOU score indicated a higher frequency use of the paretic upper limb, and the higher MAL-QOM score indicated a higher movement quality of the paretic upper limb.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 30 30 30
AOU-Pre
34.03
(30.35)
49.72
(47.73)
39.20
(40.54)
45.28
(34.50)
AOU-Mid
35.57
(35.59)
44.93
(47.92)
53.27
(50.99)
47.73
(43.91)
AOU-Post
38.53
(38.86)
48.87
(49.56)
54.70
(50.15)
45.10
(44.62)
AOU-1-month followed-up
35.95
(31.91)
48.68
(49.49)
48.58
(50.04)
49.25
(50.86)
AOU-3-month followed-up
39.80
(34.42)
58.03
(54.14)
50.53
(48.84)
46.42
(46.33)
QOM-Pre
42.10
(36.15)
56.92
(49.89)
52.42
(45.09)
58.00
(43.44)
QOM-Mid
41.83
(37.57)
53.20
(47.32)
61.10
(53.46)
51.53
(46.79)
QOM-Post
40.93
(35.97)
61.38
(53.73)
51.53
(46.76)
52.77
(44.83)
QOM-1-month followed-up
43.05
(35.85)
54.00
(51.32)
54.88
(53.83)
57.13
(53.52)
QOM-3-month followed-up
43.28
(39.07)
59.08
(54.20)
54.23
(50.13)
57.18
(50.78)
7. Secondary Outcome
Title Chinese Version of Community Integration Measure (CIM)
Description The Chinese version of CIM was used to assess the level of community integration of the subjects. The CIM-C has been shown to have good internal consistency and good test-retest reliability for people with stroke . CIM has 10 items, each item rate from 1-5, giving a minimum score of 10 to a maximum of 50. A higher score indicated a higher level of community integration.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
Measure Participants 30 30 30 30
Pre-intervention
39.47
(7.51)
41.23
(6.89)
41.87
(8.02)
39.67
(9.21)
Mid-intervention
41.23
(6.60)
39.90
(11.79)
42.20
(7.40)
38.37
(9.04)
Post-intervention
40.17
(7.04)
41.67
(9.66)
42.17
(8.33)
39.80
(9.31)
1-month followed-up
41.63
(6.96)
42.70
(12.92)
43.17
(7.00)
39.33
(9.08)
3-month followed-up
40.10
(7.16)
40.23
(10.45)
41.03
(7.93)
41.10
(8.86)
8. Secondary Outcome
Title Maximal Voluntary Contraction (MVC)-Cocontraction Ratio
Description EMG signal of Radial Carpi Extensor and Ulnar Carpi Flexor for both affected and unaffected side would be recorded by the surface EMG electrodes when asked the subjects to perform the MVC of wrist extension and flexion for 5s in each trial. Each movement would perform 3 times. The data of the 3 trials will be averaged. The co-contraction ratio would be calculated by the iEMG area of antagonist to total (agonist+antagonist), which would be captured for 0.5s from the window began at 0.25s before and ended at 0.25s after the peak value of MVC.
Time Frame Pre-intervention, Mid-intervention (4 weeks), Post-intervention (8 weeks), Follow-up 1 month (12 weeks), Follow-up 3 months (20 weeks)

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation Task-orientated training: Task-Oriented Training (TOT) is a goal-directed exercise therapy, which help the people derive optimal control strategies for solving specific motor problems in real environment. In this study, TOT included stretching exercises, mobilizing exercise, strengthening exercises, seated reaching tasks, dexterity training and bimanual practice. Transcutaneous electrical nerve stimulation (TENS): The stimulator was 120z Dual-Channel TENS Unit (ITO PHYSITHERAPY&REHABILITION CO., LTD, Tokyo, Japan). The parameter (100 Hz, 0.2 ms square pulses, intensity barely below the motor threshold) of TENS followed our previous study All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side and sham electrical stimulation on the non-paretic side Task-orientated training: Task-Oriented Training (TOT) is a goal-directed exercise therapy, which help the people derive optimal control strategies for solving specific motor problems in real environment. In this study, TOT included stretching exercises, mobilizing exercise, strengthening exercises, seated reaching tasks, dexterity training and bimanual practice. Transcutaneous electrical nerve stimulation (TENS): The stimulator was 120z Dual-Channel TENS Unit (ITO PHYSITHERAPY&REHABILITION CO., LTD, Tokyo, Japan). The parameter (100 Hz, 0.2 ms square pulses, intensity barely below the motor threshold) of TENS followed our previous study Sham electrical nerve stimulation: A identical-looking TENS devices that electrical circuit has been disconnected. All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation Task-orientated training: Task-Oriented Training (TOT) is a goal-directed exercise therapy, which help the people derive optimal control strategies for solving specific motor problems in real environment. In this study, TOT included stretching exercises, mobilizing exercise, strengthening exercises, seated reaching tasks, dexterity training and bimanual practice. Sham electrical nerve stimulation: A identical-looking TENS devices that electrical circuit has been disconnected. No Active intervention
Measure Participants 30 30 30 30
Co-contraction Ratio of Wrist Flexion-pre
0.28
(0.14)
0.24
(0.11)
0.25
(0.15)
0.24
(0.13)
Co-contraction Ratio of Wrist Flexion-mid
0.26
(0.13)
0.27
(0.13)
0.23
(0.11)
0.24
(0.13)
Co-contraction Ratio of Wrist Flexion-post
0.26
(0.14)
0.28
(0.12)
0.25
(0.12)
0.24
(0.12)
Co-contraction Ratio of Wrist Flexion-follow up 1 month
0.26
(0.16)
0.26
(0.11)
0.25
(0.10)
0.25
(0.13)
Co-contraction Ratio of Wrist Flexion-follow up 3 months
0.27
(0.16)
0.25
(0.11)
0.23
(0.15)
0.23
(0.11)
Co-contraction Ratio of Wrist Extension-pre
0.29
(0.16)
0.31
(0.23)
0.25
(0.15)
0.23
(0.18)
Co-contraction Ratio of Wrist Extension-mid
0.25
(0.12)
0.28
(0.20)
0.26
(0.15)
0.22
(0.18)
Co-contraction Ratio of Wrist Extension-post
0.27
(0.14)
0.28
(0.21)
0.28
(0.16)
0.27
(0.20)
Co-contraction Ratio of Wrist Extension-follow up 1 month
0.29
(0.17)
0.28
(0.23)
0.26
(0.14)
0.23
(0.15)
Co-contraction Ratio of Wrist Extension-follow up 3 months
0.28
(0.18)
0.27
(0.18)
0.27
(0.15)
0.22
(0.14)

Adverse Events

Time Frame 5 months (from the baseline to the follow up 3 months assessment)
Adverse Event Reporting Description Baseline: There was no adverse event occurred in baseline, Mid-Intervention, Post-intervention, follow-up 1 month and follow-up 3 month.
Arm/Group Title Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Arm/Group Description All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral electrical stimulation All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with unilateral electrical stimulation on paretic side All subjects will undergo 20 sessions of their assigned intervention (60 minutes, thrice a week, for 8 weeks). All subjects will receive 60 minutes task-oriented upper limb training (TOT) with bilateral sham electrical stimulation No Active intervention
All Cause Mortality
Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/30 (0%) 0/30 (0%) 0/30 (0%) 0/30 (0%)
Serious Adverse Events
Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/30 (0%) 0/30 (0%) 0/30 (0%) 0/30 (0%)
Other (Not Including Serious) Adverse Events
Bilateral TENS (Bi-TENS) Group Unilateral TENS (Uni-TENS) Group Placebo Group Control Group
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/30 (0%) 0/30 (0%) 0/30 (0%) 0/30 (0%)

Limitations/Caveats

The time window of the assessment may not be widen enough to observe the change in all the outcomes. The sample size may not be large enough provide sufficient power to detect the improvement in all the outcomes.

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Prof. Shamay Ng
Organization Department of Rehabilitation Science, The Hong Kong Polytechnic University
Phone 27664889
Email shamay.ng@polyu.edu.hk
Responsible Party:
Shamay Ng, Associate Professor, The Hong Kong Polytechnic University
ClinicalTrials.gov Identifier:
NCT03112473
Other Study ID Numbers:
  • HMRF_SNg
First Posted:
Apr 13, 2017
Last Update Posted:
May 13, 2021
Last Verified:
Apr 1, 2021