An interventional study of transcranial direct current stimulation in Incomplete Spinal Cord Injury, sponsored by Mahidol University. Completed at 1 site in Thailand. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2022-06-22.
Sponsored by Mahidol University · Not applicable, Interventional, and Treatment
This study aim to investigate the effects of anodal transcranial direct current stimulation combined with gait training for 5 consecutive session on gait performance, balance, sit to stand performance and quality of life in persons with incomplete SCI at post intervention, 1-month follow-up and 2-month follow up
The result from the previous studies of Water in 1994 regarding the ambulation status of patients with spinal cord injury (SCI) for a period of 1 year after injury. It was found that 76% of incomplete paraplegia and 46 % of incomplete tetraplegia can recovery their walking ability to become community ambulators. However, the recovery rate gradually decreased and started to hit the plateau level around 9 months post injury or in chronic phase. Therefore, it is a challenge in rehabilitation to restore their functions such as walking which is a primary goal of functional independence.
Activity-based rehabilitation therapy (ABRT) (such as locomotion training) is an intensive intervention that has the potential to promote neurological recovery and enhance walking ability in individual with incomplete SCI. Although, ABRT showed positive results in motor function recovery in incomplete SCI survivors, it may not be able to promote full recovery, especially in chronic patients. Recent studies showed that the combination of training with top-down approach may be an option that could promote motor recovery after SCI.
transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that is currently being used as an add-on treatment in neurorehabilitation. tDCS over the primary motor cortex has been shown to modulate neural activity at both cortical and spinal levels. It also produce an after-effect in modulating neuronal synaptic plasticity and increasing the expression of brain-derived neurotrophic factor (BDNF). Early tDCS studies have shown that increasing stimulation intensity or duration within certain limits enhances tDCS efficacy: while anodal stimulation increases cortical excitability, cathodal stimulation decreases it. The application of tDCS is to place the electrode in a specific montage on the decided target brain area and deliver the low-intensity current pass through that brain area for neural modulation during or after providing a rehabilitation program. Previous studies of the application of tDCS showed that applying of tDCS on primary motor cortex with intensity of 2 milliampere (mA) for 10-20 minutes combined with rehabilitation can enhance lower limb performance such as knee strength, ankle movement, and sit to stand performance in people with stroke as well as walking speed in people with Parkinson's disease. According to result from those previous studies can revealed that the combination of rehabilitation with modulation of corticospinal excitability can enhance lower limb performance in individual with neurological condition. In individuals with incomplete SCI, the excitability of the preserved corticospinal pathways is reduced which can affect the control of their motor skills and motor recovery. Several studies reported positive effect of anodal tDCS combined with training in individuals with incomplete SCI, however most of studies focused on upper limb function. Only few studies on the outcome of lower limb function and walking ability, which are required to return to their daily living and thus increase in quality of life (QOL). Moreover, most of studies in the lower limb were conducted in a small sample size and reported inconclusive results.
Therefore, the purpose of this study is to determine whether the effects of combining anodal tDCS with gait training for 5 consecutive session in people with incomplete SCI can improve lower limb performance consist of gait performance(spatiotemporal), dynamic balance(time up and go test), sit to stand performance (5 times of sit to stand test) and QOL after a prolonged period of follow-up at 1-month and 2-month compare to control group of sham tDCS with gait training.
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Exclusion Criteria:
Anodal tDCS will be applied over the primary motor cortex (M1) (anodal or active electrode on M1 area, cathodal or reference electrode on supraorbital area) for 20 mins with 2 mA intensity before 50-minute of gait training with external cue and feedback for 5 consecutive sessions
Device: transcranial direct current stimulation
Sham tDCS will be applied over the primary motor cortex for 20mins before 50-minute of gait training with external cue and feedback for 5 consecutive sessions
Device: transcranial direct current stimulation
Transcranial direct current stimulation will be use for the intervention. Anodal and sham tDCS will be applied in 2 mA through a pair of saline-soaked surface sponge electrode 35 cm square for 20 minute over the primary motor area for modulating the cortical excitability before apply the rehabilitation training
Change from baseline in gait efficacy assessed by walking speed(m/s) at 5 days
10 meter walk test will be used for measuring walking speed in 2 pace which are 1) comfortable pace 2) fastest safe pace by ask the participants to walk along 14-meter walkway and the assessor will record the time at the middle 10 meters and calculate into speed of walking in m/s. Increasing walking speed indicates better walking performance.
Time frame: Baseline and 5 days
Change from baseline in gait efficacy assessed by walking speed(m/s) at 1 month
10 meter walk test will be used for measuring walking speed in 2 pace which are 1) comfortable pace 2) fastest safe pace by ask the participants to walk along 14-meter walkway and the assessor will record the time at the middle 10 meters and calculate into speed of walking in m/s. Increasing walking speed indicates better walking performance.
Time frame: Baseline and 1 month
Change from baseline in gait efficacy assessed by walking speed (m/s) at 2 months
10 meter walk test will be used for measuring walking speed in 2 pace which are 1) comfortable pace 2) fastest safe pace by ask the participants to walk along 14-meter walkway and the assessor will record the time at the middle 10 meters and calculate into speed of walking in m/s. Increasing walking speed indicates better walking performance.
Time frame: Baseline and 2 months
Change from baseline in gait efficacy assessed by stride parameter (m) at 5 days
G walk accelerometer will be use for measuring stride component of walking with comfortable pace. The assessor will attach the device with belt at L5 spinous process and ask the participants to walk with their comfortable pace and record the parameter then transfer to computer. The increasing of stride length indicates good walking performance. The reducing of stride duration indicates good walking performance.
Time frame: Baseline and 5 days
Change from baseline in gait efficacy assessed by stride parameter (m) at 1 month
G walk accelerometer will be use for measuring stride component of walking with comfortable pace. The assessor will attach the device with belt at L5 spinous process and ask the participants to walk with their comfortable pace and record the parameter then transfer to computer. The increasing of stride length indicates good walking performance. The reducing of stride duration indicates good walking performance.
Time frame: Baseline and 1 month
Change from baseline in gait efficacy assessed by stride parameter (m) at 2 months
G walk accelerometer will be use for measuring stride component of walking with comfortable pace. The assessor will attach the device with belt at L5 spinous process and ask the participants to walk with their comfortable pace and record the parameter then transfer to computer. The increasing of stride length indicates walking performance. The reducing of stride duration indicates walking performance.
Time frame: Baseline and 2 months
Change from baseline in gait efficacy assessed by cadence (step/min) at 5 days
G walk accelerometer will be use for measuring cadence of walking with comfortable pace. The assessor will attach the device with belt at L5 spinous process and ask the participants to walk with their comfortable pace and record the parameter then transfer to computer. The increasing of cadence indicates good walking performance.
Time frame: Baseline and 5 days
Change from baseline in gait efficacy assessed by cadence (step/min) at 1 month
G walk accelerometer will be use for measuring cadence of walking with comfortable pace. The assessor will attach the device with belt at L5 spinous process and ask the participants to walk with their comfortable pace and record the parameter then transfer to computer. The increasing of cadence indicates good walking performance.
Time frame: Baseline and 1 month
Change from baseline in gait efficacy assessed by cadence (step/min) at 2 months
G walk accelerometer will be use for measuring cadence of walking with comfortable pace. The assessor will attach the device with belt at L5 spinous process and ask the participants to walk with their comfortable pace and record the parameter then transfer to computer. The increasing of cadence indicates good walking performance.
Time frame: Baseline and 2 months
Change from baseline in balance efficacy assessed by duration of timed up and go test at 5 days
The timed up and go test will used for assessing dynamic balance of participants by asking the participant to stand up from standard chair with back rest and walk forward for 3 meters and return to sit down at the chair again. The assessor will record the time spending when instructing the participants to start and stop record time when the participants sit down and back against the back rest again. The shorter time indicates good dynamic balance.
Time frame: Baseline and 5 days
Change from baseline in balance efficacy assessed by duration of timed up and go test (s) at 1 month
The timed up and go test will used for assessing dynamic balance of participants by asking the participant to stand up from standard chair with back rest and walk forward for 3 meters and return to sit down at the chair again. The assessor will record the time spending when instructing the participants to start and stop record time when the participants sit down and back against the back rest again. The shorter time indicates good dynamic balance.
Time frame: Baseline and 1 month
Change from baseline in balance efficacy assessed by duration of timed up and go test (s) at 2 months
The timed up and go test will used for assessing dynamic balance of participants by asking the participant to stand up from standard chair with back rest and walk forward for 3 meters and return to sit down at the chair again. The assessor will record the time spending when instructing the participants to start and stop record time when the participants sit down and back against the back rest again. The shorter time indicates good dynamic balance.
Time frame: Baseline and 2 months
Change from baseline in balance efficacy assessed by duration of five time sit to stand test (s) at 5 days
Five time sit to stand test will be used for measuring leg strength and dynamic balance. The assessor will ask the participants to standing up from armless chair with back rest for 5 times in a raw as fast as possible. the assessor will record the time spending of complete 5 time of sit to stand that start from giving instruction and stop when the participant completely sit on chair at 5th repetition. The shorter time indicates good performance
Time frame: Baseline and 5 days
Change from baseline in balance efficacy assessed by duration of five time sit to stand test(s) at 1 month
Five time sit to stand test will be used for measuring leg strength and dynamic balance. The assessor will ask the participants to standing up from armless chair with back rest for 5 times in a raw as fast as possible. the assessor will record the time spending of complete 5 time of sit to stand that start from giving instruction and stop when the participant completely sit on chair at 5th repetition. The shorter time indicates good performance
Time frame: Baseline and 1 month
Change from baseline in balance efficacy assessed by duration of five time sit to stand test (s) at 2 months
Five time sit to stand test will be used for measuring leg strength and dynamic balance. The assessor will ask the participants to standing up from armless chair with back rest for 5 times in a raw as fast as possible. the assessor will record the time spending of complete 5 time of sit to stand that start from giving instruction and stop when the participant completely sit on chair at 5th repetition. The shorter time indicates good performance
Time frame: Baseline and 2 months
Change from baseline in quality of life assessed by WHOQOL-Bref Thai version (score 26-130) at 1 month
World Health Organization (WHO) quality of life (QOL)- bref Thai version will be use for assessing in quality of life. there are two types of questions which are the perceived objective and the self-report subjective and consist of four components of well-being which are physical, psychological, social, and environmental. Each item will be scored from 1-5. (Total score 26-130). The higher score indicates better QOL.
Time frame: Baseline and 1 month
Change from baseline in quality of life assessed by WHOQOL-Bref Thai version (score 26-130) at 2 months
WHO quality of life (QOL)- bref Thai version will be use for assessing in quality of life. there are two types of questions which are the perceived objective and the self-report subjective and consist of four components of well-being which are physical, psychological, social, and environmental. Each item will be scored from 1-5 (Total score 26-130). The higher score indicates better QOL.
Time frame: Baseline and 2 month
Plan to share: No
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