Parameter Changes in Functional Electrical Stimulation
This study aims to look at how changes to a person's functional electrical stimulation might change how they walk. Functional electrical stimulation (FES) is commonly used to help people with foot drop from upper motor neurone conditions such as stroke or multiple sclerosis. This group of people have muscle weakness which makes it difficult to lift the foot, which causes trips and falls.
FES reduces foot drop by using a portable device to apply short electrical pulses to the nerve which lifts the foot. The FES device stimulates this nerve only during the swing phase, when the foot is off the floor. Typically this is achieved by using a foot-switch, which detects when the heel leaves the floor. Stimulation begins a short interval of time after the heel leaves the floor, ramps up from zero to set stimulation for the individual, and at another period of time after the heel hits the floor, stimulation ramps down from set amount to zero. There are four time intervals described here which can be varied by the clinician on the device:-
- Delay (the time between heel lift and the start of stimulation)
- Ramp up (the time for stimulation to reach full strength)
- Extension (the time between heel strike and the ramp down)
- Ramp down (the time for stimulation to reach zero from full strength) These intervals are usually set by experienced clinicians using a qualitative assessment of the patient's walking and trial-and-error. A literature review has found no published studies which compare walking with different timing. This knowledge would be useful for clinicians, who could use this information as a starting point in finding the best timing parameters for each patient.
調査の概要
状態
条件
研究の種類
入学 (予想される)
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
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Upper motor neurone lesion causing foot drop
- Currently use single-channel Odstock Medical ODFS functional electrical stimulator
- Age 18 or older
- Attending Leeds FES Service follow-up clinics
Exclusion Criteria:
• FES user for less than three months
- Lower limb prosthesis
- Cannot walk 5m with walking aids
- Cannot walk twenty 5m walks within a three-hour period
- Use FES less than once per week
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
コホートと介入
グループ/コホート |
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Functional Electrical Stimulation (FES) users
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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 |
|---|---|---|
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Gait analysis will be measured according to routine protocol
時間枠：Gait will be assessed over one visit of three hours.
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Gait analysis will measured in accordance with the Plug-In-Gait model guide.
This measures 16 points on the subjects left and right leg.
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Gait will be assessed over one visit of three hours.
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協力者と研究者
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
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
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。