Trial Outcomes & Findings for Effects of Combined rTMS and Treadmill Training in People With Parkinson's Disease (NCT NCT02701647)

NCT ID: NCT02701647

Last Updated: 2019-11-22

Results Overview

Each participant is instructed to walk for 14 meters at their fastest walking speed for three trials. The time taken for the middle 10 meter was recorded. The average of three trials is used for analysis.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

51 participants

Primary outcome timeframe

Baseline, 1 day post-intervention, 1 month post-intervention, 3 month post-intervention

Results posted on

2019-11-22

Participant Flow

Participant milestones

Participant milestones
Measure
25-Hz rTMS
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.Treadmill training: Participants proceeded with 30 minute of treadmill training after rTMS. A safety harness without body weight support will be provided. Walking speed on treadmill was increased by 0.2km/h every 5 minutes provided that participants could tolerate the belt speed with appropriate step length and walk with good stability. The maximum achieved speed was then maintained for the rest of the session or adjusted as needed.
1-Hz rTMS
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training. Treadmill training: Participants proceeded with 30 minute of treadmill training after rTMS. A safety harness without body weight support will be provided. Walking speed on treadmill was increased by 0.2km/h every 5 minutes provided that participants could tolerate the belt speed with appropriate step length and walk with good stability. The maximum achieved speed was then maintained for the rest of the session or adjusted as needed.
Sham rTMS
Sham repetitive Transcranial magnetic stimulation was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group was placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect as 25-Hz group. Sham rTMS will be followed by 30 minutes of treadmill training. Treadmill training: Participants proceeded with 30 minute of treadmill training after rTMS. A safety harness without body weight support will be provided. Walking speed on treadmill was increased by 0.2km/h every 5 minutes provided that participants could tolerate the belt speed with appropriate step length and walk with good stability. The maximum achieved speed was then maintained for the rest of the session or adjusted as needed.
Overall Study
STARTED
17
17
17
Overall Study
COMPLETED
17
17
16
Overall Study
NOT COMPLETED
0
0
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training. Participants will proceed to 30 minute of treadmill training after rTMS. A safety harness without body weight support will be provided. 80% of participant's over ground maximum walking speed will be halved and used for warm-up. After warming up, walking speed will be increased by 0.2 km/h every 5 minutes. Progression will be given if patients could tolerate the belt speed with appropriate step length and walk with good stability for 5 minutes. Maximum achieved speed will be maintained followed by 0.5 km/h decrements. Participants will maintain the rest of the treadmill session with this speed or further adjustment will be made if participants are unable to maintain. Positive verbal feedback
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training. Treadmill training: Participants proceeded with 30 minute of treadmill training after rTMS. A safety harness without body weight support will be provided. Walking speed on treadmill was increased by 0.2km/h every 5 minutes provided that participants could tolerate the belt speed with appropriate step length and walk with good stability. The maximum achieved speed was then maintained for the rest of the session or adjusted as needed.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group will be placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect as 25-Hz group. Sham rTMS will be followed by 30 minutes of treadmill training. Treadmill training: Participants proceeded with 30 minute of treadmill training after rTMS. A safety harness without body weight support will be provided. Walking speed on treadmill was increased by 0.2km/h every 5 minutes provided that participants could tolerate the belt speed with appropriate step length and walk with good stability. The maximum achieved speed was then maintained for the rest of the session or adjusted as needed.
Total
n=50 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=17 Participants
0 Participants
n=17 Participants
0 Participants
n=16 Participants
0 Participants
n=50 Participants
Age, Categorical
Between 18 and 65 years
13 Participants
n=17 Participants
11 Participants
n=17 Participants
11 Participants
n=16 Participants
35 Participants
n=50 Participants
Age, Categorical
>=65 years
4 Participants
n=17 Participants
6 Participants
n=17 Participants
5 Participants
n=16 Participants
15 Participants
n=50 Participants
Age, Continuous
62.7 years
STANDARD_DEVIATION 6.8 • n=17 Participants
62.1 years
STANDARD_DEVIATION 5.7 • n=17 Participants
62.1 years
STANDARD_DEVIATION 5.7 • n=16 Participants
62.3 years
STANDARD_DEVIATION 6.0 • n=50 Participants
Sex: Female, Male
Female
7 Participants
n=17 Participants
8 Participants
n=17 Participants
9 Participants
n=16 Participants
24 Participants
n=50 Participants
Sex: Female, Male
Male
10 Participants
n=17 Participants
9 Participants
n=17 Participants
7 Participants
n=16 Participants
26 Participants
n=50 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
Hong Kong
17 participants
n=17 Participants
17 participants
n=17 Participants
16 participants
n=16 Participants
50 participants
n=50 Participants
Disease duration (no. of years of diagnosis of PD)
5.2 years
STANDARD_DEVIATION 3.4 • n=17 Participants
7.5 years
STANDARD_DEVIATION 4.9 • n=17 Participants
6.9 years
STANDARD_DEVIATION 3.3 • n=16 Participants
6.5 years
STANDARD_DEVIATION 4.0 • n=50 Participants
daily levodopa equivalent dose
484.2 mg/day
STANDARD_DEVIATION 336.4 • n=17 Participants
512.5 mg/day
STANDARD_DEVIATION 359.9 • n=17 Participants
493.3 mg/day
STANDARD_DEVIATION 523.9 • n=16 Participants
496.8 mg/day
STANDARD_DEVIATION 404.2 • n=50 Participants

PRIMARY outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention, 3 month post-intervention

Each participant is instructed to walk for 14 meters at their fastest walking speed for three trials. The time taken for the middle 10 meter was recorded. The average of three trials is used for analysis.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Fastest Walking Speed
3 month post intervention
163.2 cm/s
Standard Deviation 31.0
169.9 cm/s
Standard Deviation 38.7
156.7 cm/s
Standard Deviation 28.0
Fastest Walking Speed
Baseline
149.5 cm/s
Standard Deviation 24.7
153.1 cm/s
Standard Deviation 27.3
156.1 cm/s
Standard Deviation 30.2
Fastest Walking Speed
1 day Post intervention
164.3 cm/s
Standard Deviation 26.3
167.3 cm/s
Standard Deviation 34.0
160.7 cm/s
Standard Deviation 33.3
Fastest Walking Speed
1 month post intervention
167.8 cm/s
Standard Deviation 26.4
170.6 cm/s
Standard Deviation 35.6
164.6 cm/s
Standard Deviation 32.3

SECONDARY outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention and 3 months post-intervention

Participants are instructed to stand up from a chair and walk for 7 meters walkway and return back to the chair turn around and sit down. Time and gait parameters during TUG were captured by the valid and reliable APDM system, which is a wearable gait and balance analysis system.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Timed-Up-and-Go Test (iTUG)
Baseline
20.8 seconds
Standard Deviation 4.0
18.3 seconds
Standard Deviation 2.5
19.3 seconds
Standard Deviation 2.5
Timed-Up-and-Go Test (iTUG)
1 day Post intervention
18.4 seconds
Standard Deviation 2.8
17.1 seconds
Standard Deviation 2.7
18.0 seconds
Standard Deviation 2.1
Timed-Up-and-Go Test (iTUG)
1 month post intervention
17.7 seconds
Standard Deviation 2.9
17.1 seconds
Standard Deviation 2.3
17.9 seconds
Standard Deviation 1.8
Timed-Up-and-Go Test (iTUG)
3 month post intervention
17.9 seconds
Standard Deviation 2.8
16.6 seconds
Standard Deviation 2.3
18.4 seconds
Standard Deviation 2.1

SECONDARY outcome

Timeframe: Baseline, I day post-intervention, 1 month post-intervention and 3 months post-intervention

MDS-UPDRS III is a valid and reliable clinical test, will be used to evaluate severity of motor symptoms of PD. There are total of 27 items including tremor, rigidity, bradykinesia, postural instability and gait performance. Each item scores from 0-4, with 0 indicates no disability and 4 maximum disabled with total score(s) ranges from 0 to 132.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
the Motor Section of Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS III)
3 month post intervention
22.5 score on a scale
Standard Deviation 10.1
21.9 score on a scale
Standard Deviation 7.8
27.3 score on a scale
Standard Deviation 8.0
the Motor Section of Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS III)
Baseline
27.9 score on a scale
Standard Deviation 10.5
27.1 score on a scale
Standard Deviation 9.6
29.7 score on a scale
Standard Deviation 10.6
the Motor Section of Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS III)
1 day Post intervention
19.9 score on a scale
Standard Deviation 8.5
22.2 score on a scale
Standard Deviation 7.5
27.9 score on a scale
Standard Deviation 9.0
the Motor Section of Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS III)
1 month post intervention
20.8 score on a scale
Standard Deviation 8.9
22.5 score on a scale
Standard Deviation 7.3
27.9 score on a scale
Standard Deviation 10.1

SECONDARY outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention and 3 months post-intervention

The 2 minute walk test will be conducted along a 20 m x 2 m hallway. A line is marked at each end of the walkway to indicate where the person is to turn. Participants will be instructed to " walk as far as possible in 2 minutes". They will be given standardised encouragement at 60 and 90 seconds during walk. Distance walked will be recorded to the nearest meter.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Walking Distance in a 2 -Minute Walk Test
Baseline
147.4 meter
Standard Deviation 29.8
144.7 meter
Standard Deviation 31.3
148.7 meter
Standard Deviation 25.0
Walking Distance in a 2 -Minute Walk Test
1 day post intervention
160.4 meter
Standard Deviation 28.0
164.9 meter
Standard Deviation 29.8
157.3 meter
Standard Deviation 31.7
Walking Distance in a 2 -Minute Walk Test
1 month post intervention
166.3 meter
Standard Deviation 29.7
167.9 meter
Standard Deviation 29.7
157.9 meter
Standard Deviation 29.7
Walking Distance in a 2 -Minute Walk Test
3 month post intervention
163.1 meter
Standard Deviation 30.7
166.8 meter
Standard Deviation 31.2
160.5 meter
Standard Deviation 28.9

SECONDARY outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention and 3 months post-intervention

Balance performance of participants will be assessed in 4 domains namely anticipatory postural adjustments, postural responses, sensory orientation and gait stability. Each item is rated from 0-2 with a total scores of 28. The Total scores range from 0-28, with higher scores indicate better dynamic balance.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Mini Balance Evaluation Systems Test Scores
1 day post intervention
24.2 score on a scale
Standard Deviation 2.5
23.8 score on a scale
Standard Deviation 2.7
22.4 score on a scale
Standard Deviation 2.2
Mini Balance Evaluation Systems Test Scores
Baseline
21.5 score on a scale
Standard Deviation 3.4
21.8 score on a scale
Standard Deviation 2.7
21.7 score on a scale
Standard Deviation 2.8
Mini Balance Evaluation Systems Test Scores
1 month post intervention
23.8 score on a scale
Standard Deviation 2.8
23.5 score on a scale
Standard Deviation 2.5
22.8 score on a scale
Standard Deviation 2.5
Mini Balance Evaluation Systems Test Scores
3 month post intervention
23.4 score on a scale
Standard Deviation 3.0
24.1 score on a scale
Standard Deviation 2.6
23.0 score on a scale
Standard Deviation 2.4

SECONDARY outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention, 3 month-post intervention

For DT-TUG, participants were instructured to repeat the TUG procedure while performing a serial three substraction. Time taken to complete DT-TUG and accuracy of digital counting was recorded. One practice trial was given prior to both TUG and DT-TUG testing and average performance of three trials was used for analysis.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=16 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Dual-task Timed-Up-and-Go Test (DT-TUG)
1 month post intervention
21.8 seconds
Standard Deviation 6.0
20.6 seconds
Standard Deviation 4.7
23.9 seconds
Standard Deviation 3.9
Dual-task Timed-Up-and-Go Test (DT-TUG)
3 month post intervention
22.3 seconds
Standard Deviation 6.0
20.3 seconds
Standard Deviation 4.6
23.9 seconds
Standard Deviation 3.9
Dual-task Timed-Up-and-Go Test (DT-TUG)
Baseline
27.9 seconds
Standard Deviation 8.8
24.0 seconds
Standard Deviation 7.0
25.5 seconds
Standard Deviation 5.6
Dual-task Timed-Up-and-Go Test (DT-TUG)
1 day Post intervention
23.1 seconds
Standard Deviation 5.6
21.1 seconds
Standard Deviation 5.2
23.4 seconds
Standard Deviation 4.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention and 3 months post-intervention

Population: 1 discarded data due to poor quality of data

Ten suprathreshold TMS stimuli (i.e. 130% RMT) will be delivered while participant performing a 20% isometric maximal contraction of Tibialis Anterior of the more affected side. Cortical silent period (CSP) measures the duration of interruption of electromyography (EMG) activity in the contracting muscle produced by TMS. CSP duration will be determined as the period between the onset of MEP and the return of baseline EMG activity measured 50 ms before the TMS stimulus.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=17 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=15 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Cortical Silent Period
3 month post intervention
175.9 milliseconds
Standard Deviation 43.2
154.6 milliseconds
Standard Deviation 46.0
182.9 milliseconds
Standard Deviation 35.0
Cortical Silent Period
Baseline
176.5 milliseconds
Standard Deviation 50.0
164.6 milliseconds
Standard Deviation 39.8
183.9 milliseconds
Standard Deviation 38.9
Cortical Silent Period
1 day Post intervention
194.4 milliseconds
Standard Deviation 53.2
180.6 milliseconds
Standard Deviation 39.1
175.1 milliseconds
Standard Deviation 46.6
Cortical Silent Period
1 month post intervention
190.1 milliseconds
Standard Deviation 54.5
160.1 milliseconds
Standard Deviation 41.1
189.2 milliseconds
Standard Deviation 37.6

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention and 3 months post-intervention

Population: 2 sets of discarded data due to poor quality

TMS stimuli will be applied at 10% steps between 100% to 160% RMT. 10 stimuli will be delivered at each intensity. Peak to peak amplitude of 10 motor-evoked potentials (MEPs) at each stimulus intensity will be averaged offline.The cut-off intensity is set at 75% of maximum stimulator output due to discomfort perceived by majority of the participants. MEPs will be normalised with the maximal muscle action potential (MMax), which is determined by supramaximal electrical stimulation of the fibular nerve. A scatter graph will be generated with the average amplitude of MEPs as a function of stimulation intensity. The linear trend will be added to generate the linear recruitment curve slope.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=17 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=16 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=15 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Gradient of the Recruitment Curve ( Also Known as Stimulus-response Curve)
1 month post intervention
0.70 millivolts / % maximum stimulator output
Standard Deviation 0.57
0.63 millivolts / % maximum stimulator output
Standard Deviation 0.30
0.59 millivolts / % maximum stimulator output
Standard Deviation 0.43
Gradient of the Recruitment Curve ( Also Known as Stimulus-response Curve)
3 month post intervention
0.74 millivolts / % maximum stimulator output
Standard Deviation 0.47
0.70 millivolts / % maximum stimulator output
Standard Deviation 0.41
0.58 millivolts / % maximum stimulator output
Standard Deviation 0.45
Gradient of the Recruitment Curve ( Also Known as Stimulus-response Curve)
Baseline
0.51 millivolts / % maximum stimulator output
Standard Deviation 0.30
0.53 millivolts / % maximum stimulator output
Standard Deviation 0.39
0.61 millivolts / % maximum stimulator output
Standard Deviation 0.32
Gradient of the Recruitment Curve ( Also Known as Stimulus-response Curve)
1 day Post intervention
0.58 millivolts / % maximum stimulator output
Standard Deviation 0.36
0.64 millivolts / % maximum stimulator output
Standard Deviation 0.37
0.52 millivolts / % maximum stimulator output
Standard Deviation 0.40

OTHER_PRE_SPECIFIED outcome

Timeframe: Baseline, 1 day post-intervention, 1 month post-intervention and 3 months post-intervention

Population: unable to perform procedure due to small MEPS values for 5 participants

Short-interval-intracortical inhibition (SICI) is another measure of cortical inhibition. In a paired- pulse TMS paradigm, a test pulse will be adjusted to produce MEP of at least 0.5 millivolts which will be delivered preceded by a brief conditioned pulse set at a lower intensity of 80% RMT with inter-stimulus interval of 2 milliseconds. Two stimulators connected via a Bistim module ( Magstim Co.,Whitland, UK) will be used in this test. Ten conditioned MEPs and unconditioned MEPs will be obtained in a random order and were averaged for each condition. SICI is expressed as percentage of unconditioned test MEP amplitude.

Outcome measures

Outcome measures
Measure
25-Hz rTMS
n=15 Participants
Participants received 4s train of 25-Hz repetitive Transcranial magnetic stimulation pulses with 50s inter-train intervals. Participant received a total of 600 rTMS pulses in 6 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
1-Hz rTMS
n=14 Participants
Participants received a total of 600 1-Hz repetitive Transcranial magnetic stimulation pulses in 10 minutes for each hemisphere and a total of 1200 pulses followed by 30 minutes of treadmill training.
Sham rTMS
n=11 Participants
Sham repetitive Transcranial magnetic stimulation will was applied over the same site as for real rTMS , however, with the cables of the coil disconnected. Another figure-of-eight coil using the same stimulation parameters (intensity, time, and frequency) as 25-Hz group with another coil placed posterior to the subject's neck with the handle pointing backward to produce the same clicking sound effect. Sham rTMS will be followed by 30 minutes of treadmill training.
Short-interval-intracortical Inhibition
1 day Post intervention
44.4 percentage of Unconditioned MEPs
Standard Deviation 23.0
51.4 percentage of Unconditioned MEPs
Standard Deviation 28.2
76.5 percentage of Unconditioned MEPs
Standard Deviation 49.8
Short-interval-intracortical Inhibition
1 month post intervention
42.0 percentage of Unconditioned MEPs
Standard Deviation 26.9
62.6 percentage of Unconditioned MEPs
Standard Deviation 31.7
89.8 percentage of Unconditioned MEPs
Standard Deviation 62.9
Short-interval-intracortical Inhibition
3 month post intervention
50.8 percentage of Unconditioned MEPs
Standard Deviation 22.8
60.7 percentage of Unconditioned MEPs
Standard Deviation 39.2
74.3 percentage of Unconditioned MEPs
Standard Deviation 30.2
Short-interval-intracortical Inhibition
Baseline
56.4 percentage of Unconditioned MEPs
Standard Deviation 27.0
49.4 percentage of Unconditioned MEPs
Standard Deviation 24.1
62.2 percentage of Unconditioned MEPs
Standard Deviation 33.1

Adverse Events

25-Hz rTMS

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

1-Hz rTMS

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Sham rTMS

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Chloe Chung

The Hong Kong Polytechnic University

Phone: 2766

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place