Interventions to Enhance Quadriceps Output After ACLR
Clinical Interventions to Acutely Enhance Quadriceps Output After Anterior Cruciate Ligament Reconstruction
調査の概要
詳細な説明
After a screening visit, participants will be randomized to 2 intervention conditions over 2, 60-minute visits at least 1 week apart where they will complete:
- a 5 minute low intensity warm-up on a stationary bike
- a series of patient-reported outcomes surveys
- a pre-intervention quadriceps performance assessment
the intervention condition, one each visit, either:
- ~20 minutes of NMES while completing rehabilitation exercises, OR
- ~20 minutes of hamstring muscle vibration
- a post-intervention quadriceps performance assessment
The primary objective of the study is to characterize the acute effects of interventions designed to mitigate the influence of inhibition (NMES and hamstrings muscle vibration) on quadriceps muscle performance in people post-anterior cruciate ligament reconstruction (ACLR) who have significant potential to benefit from these interventions (e.g. less than 4 months post-surgery).
- Specific Aim 1: To determine the acute effects of quadriceps NMES and hamstrings muscle vibration on quadriceps muscle performance in people 2-4 months post-ACLR
- Specific Aim 2: To determine if individuals with signs of more pronounced neural inhibition (quantified via assessment of knee extensor torque steadiness) have greater responses to NMES and hamstrings muscle vibration
Hypothesis 1: Quadriceps muscle strength will increase in people 2-4 months post-ACLR after 20 minutes of quadriceps NMES or hamstrings muscle vibration. The magnitude of increase in strength will be similar for both interventions.
Hypothesis 2: Surgical limb knee extensor torque steadiness will be strongly positively correlated with changes in quadriceps strength after NMES or hamstrings muscle vibration. People with greater steadiness impairments will demonstrate greater acute increases in quadriceps strength.
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Daniel Cobian, DPT, PhD
- 電話番号:608-262-0013
- メール:cobian@ortho.wisc.edu
研究場所
-
-
Wisconsin
-
Madison、Wisconsin、アメリカ、53706
- 募集
- UW Health
-
-
参加基準
適格基準
就学可能な年齢
- 大人
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Have undergone ACLR within the previous 4 months
- Are at least 2 months post-ACLR
Exclusion Criteria:
- A history of ACLR on both legs
Since the most recent ACLR:
- secondary lower extremity surgery
- leg or foot fracture
- Unable to walk without an assistive device
- Pain of greater than 5/10 during quadriceps strengthening exercises with the surgical limb
- Cannot achieve 90 degrees of knee flexion with the surgical limb
- People with contraindications to NMES
- Anyone who had a previous skin reaction to NMES or attempted but could not tolerate NMES
- Peripheral neuropathy or other neurological conditions
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:クロスオーバー割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:NMES then Vibration
|
The thigh of the surgical leg will be cleaned with isopropyl alcohol.
2.75" x 5" NMES electrodes (Dura-Stick Plus, Chattanooga, DJO Global, Dallas, TX) will be adhered to the proximal and distal aspects of the quadriceps muscles.
An FDA-approved portable neuromuscular electrical stimulator (Empi Continuum, DJO Global, Dallas, TX) will be utilized to deliver a biphasic square wave pulse (frequency 75 Hz, pulse width 300 µs) to the quadriceps of the surgical limb.
Participants will control both the amplitude of current delivered (0-100 mA) and the on/off timing of the stimulation via a wired control switch.
Participants will complete common post-ACLR rehabilitation exercises while NMES is delivered (total time for exercises is approximately 20 minutes).
他の名前:
Participants will sit in a comfortable position on a treatment plinth with knees flexed to ~30°, hips flexed between 30-60°, and the back supported.
The back of the thighs will rest on the vibration pads of a commercial vibration device (Thumper Versa Pro Massager, (Thumper Massager Inc., Markham, Ontario, CA).
Participants will sit at rest for 20 minutes while the vibration device provides a 30 Hz vibration with an amplitude of ~6 mm.
他の名前:
|
|
実験的:Vibration then NMES
|
The thigh of the surgical leg will be cleaned with isopropyl alcohol.
2.75" x 5" NMES electrodes (Dura-Stick Plus, Chattanooga, DJO Global, Dallas, TX) will be adhered to the proximal and distal aspects of the quadriceps muscles.
An FDA-approved portable neuromuscular electrical stimulator (Empi Continuum, DJO Global, Dallas, TX) will be utilized to deliver a biphasic square wave pulse (frequency 75 Hz, pulse width 300 µs) to the quadriceps of the surgical limb.
Participants will control both the amplitude of current delivered (0-100 mA) and the on/off timing of the stimulation via a wired control switch.
Participants will complete common post-ACLR rehabilitation exercises while NMES is delivered (total time for exercises is approximately 20 minutes).
他の名前:
Participants will sit in a comfortable position on a treatment plinth with knees flexed to ~30°, hips flexed between 30-60°, and the back supported.
The back of the thighs will rest on the vibration pads of a commercial vibration device (Thumper Versa Pro Massager, (Thumper Massager Inc., Markham, Ontario, CA).
Participants will sit at rest for 20 minutes while the vibration device provides a 30 Hz vibration with an amplitude of ~6 mm.
他の名前:
|
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 |
時間枠 |
|---|---|
|
Change in knee extensor peak torque production
時間枠:measured pre-intervention and post-intervention during each of 2, 1-hour study visits, data collection complete within 3 weeks
|
measured pre-intervention and post-intervention during each of 2, 1-hour study visits, data collection complete within 3 weeks
|
二次結果の測定
結果測定 |
時間枠 |
|---|---|
|
Change in knee extensor torque steadiness
時間枠:measured pre-intervention and post-intervention during each of 2, 1-hour study visits, data collection complete within 3 weeks
|
measured pre-intervention and post-intervention during each of 2, 1-hour study visits, data collection complete within 3 weeks
|
協力者と研究者
捜査官
- 主任研究者:Daniel Cobian, DPT, PhD、University of Wisconsin, Madison
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
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。