Robot and tDCS Based Proprioceptive Rehabilitation After Stroke (RoboStim)
The Combined Effect of Robotic Rehabilitation and Transcranial Direct Current Stimulation on Proprioception in Chronic Stroke: a Pilot Study
Proprioceptive deficits are common following stroke, yet current evidence-based approaches for rehabilitating proprioception are limited. Robotic rehabilitation and transcranial direct current stimulation (tDCS) are two promising technologies/techniques that can potentially be used to treat these deficits. This study's purpose is to determine whether robotic rehabilitation, specifically targeted at proprioception, has the capacity to improve proprioception in a chronic stroke population. Furthermore, it is interested in whether tDCS is able to enhance any potential improvements in proprioception as a result of robotic rehabilitation.
It is hypothesized that a robotic rehabilitation will enhance proprioception in a chronic stroke population beyond standard of care rehabilitation. It is also hypothesized that individuals receiving a combination of robotic rehabilitation and tDCS will show greater proprioceptive improvements than those just receiving robotic rehabilitation.
調査の概要
詳細な説明
Background and Rationale: Proprioception is the awareness of where our limbs are in space, in the absence of vision. It is an important sense that allows us to have control over our movement and perform many activities of daily living. Every year, approximately 62,000 Canadians suffer from a stroke. Around 50% of individuals who suffer from a stroke are left with deficits in proprioception, yet clinically very little is done to rehabilitate this sense. Two novel interventions for rehabilitating proprioception are robotic rehabilitation and Transcranial Direct Current Stimulation (tDCS). Robotic rehabilitation is potentially beneficial over conventional therapies as the number of repetitions performed in a single session can be drastically increased and these movements can be performed in a well-controlled manner, something that is more difficult in conventional therapy. It is also easy to occlude vision when performing rehabilitation in a robotic environment, meaning proprioceptive retraining can be explicitly targeted. tDCS is another technology which has the potential to enhance rehabilitation. The technique involves placing two sponge electrodes over the scalp and passing a small electrical current (1-2mA) between the two electrodes, altering the membrane potential of the brain tissue through which the current passes. When tDCS has been paired with training, it has been shown to enhance learning in both healthy and stroke populations. tDCS has yet to be investigated to improve proprioception in a stroke population.
Research Question: Can a combination of robotic rehabilitation and tDCS enhance proprioception in a chronic stroke population?
Ethics: This study has been approved by the Research Ethics Board at the University of Calgary
Design: This is a Single-Blinded, Pilot, Randomized Controlled Trial with a Sham Arm
----------Methods----------
Recruitment: 30 individuals with proprioceptive deficits beyond 6-months post-stroke are being recruited from the outpatient stroke community in Calgary, Alberta, Canada.
Randomization: Individuals are randomized into one of three groups: robotic rehabilitation plus anodal tDCS, robotic rehabilitation plus sham tDCS or standard of care rehabilitation.
Robotic Intervention: The robotic rehabilitation intervention consists of 10-days of robotic therapy in the Kinesiological Instrument for Normal and Altered Reaching Movements (KINARM) Exoskeleton. Robotic rehabilitation is conducted for 1 hour each day, on 10 consecutive days (excluding weekends). Therapy is tailored specifically towards rehabilitating proprioception and consists of a battery of 5 simple video game-like tasks. Each task is performed for 10-15 minutes each day. The order in which these tasks are completed are pseudo-randomized each day. Each day a motivation questionnaire will be completed.
tDCS Intervention: In addition to robotic rehabilitation, those in the tDCS group will also receive 20 minutes of 2mA anodal tDCS. This is applied during the first 20 minutes of each robotic session and is targeted over the ipsilesional sensory cortex. For the sham condition, the same setup will be used. Each day a tDCS tolerability questionnaire will be completed.
Assessments: All subjects will undergo 3 robotic assessments of proprioceptive performance, one at baseline (day 1), one immediately after the intervention (day 12) and one more at 3 months follow up. Two components of proprioception will be assessed during these robotic assessments (position sense and movement sense). Robotic assessments will be conducted in the same robotic exoskeleton that the therapy is delivered in.
A variety of clinical scales (Fugl-Meyer Assessment, Functional Independence Measure, and Nottingham Sensory Scale) will be collected at each time point. These will be secondary outcome measures. Performance on a robotic assessment of visually-guided reaching will also be a secondary outcome measure. All clinical assessments will be performed by a blinded assessor therapist.
Data analysis: Primary outcome measures will be analysed using a repeated measures ANOVA. Comparisons will be made between groups at each assessment time points. Secondary outcome measures and questionnaire data will also be analysed with a repeated measures ANOVA.
研究の種類
入学 (予想される)
段階
- フェーズ2
連絡先と場所
研究連絡先
- 名前:Matt Chilvers, BSc
- 電話番号:+1 403-944-1085
- メール:matthew.chilvers@ucalgary.ca
研究場所
-
-
Alberta
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Calgary、Alberta、カナダ、T2N 2T9
- 募集
- Stroke Robotic and Recovery Lab, Foothills Medical Centre
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コンタクト:
- Matthew Chilvers, BSc
- 電話番号:+1 403-944-1085
- メール:matthew.chilvers@ucalgary.ca
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コンタクト:
- Mark Piitz, BSc
- 電話番号:+1 403-944-4050
- メール:robotlab@ucalgary.ca
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主任研究者:
- Sean P Dukelow, MD/PHD
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Sex - Both male and female
- Age: 18 years and older
- Stroke onset: >6 months prior to enrolment
- Stroke type: Hemorrhagic and ischaemic
- Evidence of proprioceptive deficits as determined by a robotic assessment
- Ability to follow simple 3-step commands
Exclusion Criteria:
- Other co-morbid neurologic diagnoses (eg. Parkinson's disease)
- Seizure disorder
- Enrolment in concurrent upper extremity intervention trial
- Metal implants in head
- significant upper extremity orthopedic issues
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
---|---|
実験的:Robotic Rehabilitation plus 1x1 anodal tDCS
Receive 10 days of 1hr robotic rehabilitation with the KINARM Exoskeleton, in addition to 20 minutes, 2mA anodal tDCS (Soterix 1x1 tDCS) over the ipsilesional sensory cortex during the first 20 minutes of each robotic session.
Current is ramped up to 2mA over 30 seconds and ramped back down over 30 seconds at the end of the 20 minutes.
|
20 minutes of 2mA anodal tDCS applied by a Soterix Medical 1x1 tDCS device while the participants are doing the robotic rehabilitation
他の名前:
10 days of robotic rehabilitation targeted at proprioception.
Therapy is conducted for 1 hour each day for 10 consecutive days (excluding weekends), in combination with either anodal or sham tDCS.
他の名前:
|
偽コンパレータ:Robotic Rehabilitation plus sham tDCS
Receive 10 days of 1hr robotic rehabilitation with the KINARM Exoskeleton, in addition to sham anodal tDCS over the ipsilesional sensory cortex.
Current is ramped up to 2mA over 30 seconds and immediately ramped back down over 30 seconds.
This is repeated after 20 minutes.
|
10 days of robotic rehabilitation targeted at proprioception.
Therapy is conducted for 1 hour each day for 10 consecutive days (excluding weekends), in combination with either anodal or sham tDCS.
他の名前:
Sham 2mA anodal tDCS applied by a Soterix Medical 1x1 tDCS device while the participants are doing the robotic rehabilitation
他の名前:
|
介入なし:Standard of Care Rehabilitation
No additional therapy/treatment provided.
The individual continues with their normal daily routine
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
Robotic limb position matching standardized score
時間枠:Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
|
Change in a standardized score from a baseline robotic assessment of limb position matching
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Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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Robotic kinaesthesia standardized score
時間枠:Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
|
Change in a standardized score from a baseline robotic assessment of kinaesthesia (movement sense)
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Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
Change in Upper-Extremity Fugl-Meyer Assessment scores
時間枠:Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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Difference in subscale scores on the Upper-Extremity Fugl-Meyer Assessment - both Motor (max 66) and Sensory (max 12) components.
Higher scores indicate better outcome.
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Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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Change in Nottingham Sensory Assessment scores
時間枠:Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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Difference in subscale scores on the Nottingham Sensory Assessment - upper extremity only (Light touch, temperature, pinprick, pressure, tactile localization, bilateral simultaneous touch, proprioception - max score 12 for each subscale)
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Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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Change in Functional Independence Measure score
時間枠:Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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Difference in score on the Functional Independence Measure (Higher scores indicate better outcome, max score 126)
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Baseline, Within 1 week of completing the 10 day intervention and 3-month follow-up
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その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
tDCS Tolerability
時間枠:During 10 day intervention period
|
The questionnaire will be completed after every session
|
During 10 day intervention period
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Attention/Motivation Questionnaire
時間枠:During the 10 day intervention period
|
The questionnaire will be completed before and after every session.
Higher scores indicate greater motivation, max score = 90
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During the 10 day intervention period
|
協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- REB17-0938
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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