Effects of Whole Body Vibration on Quadriceps Function, Landing Biomechanics, and Performance in Individuals With ACL Reconstruction
2026年6月25日 更新者：University of North Carolina, Chapel Hill
Use of Whole-body Vibration to Acutely Improve Landing Biomechanics In Individuals With Anterior Cruciate Ligament Reconstruction (ACLR)
Individuals who undergo anterior cruciate ligament reconstruction (ACLR) are at heightened risk of secondary anterior cruciate ligament (ACL) injury (e.g.
additional injury to the ACL in either knee).
One of the primary physiological consequences of ACLR is the presence of quadriceps dysfunction (i.e.
reduced activation and strength) which has been linked to altered gait and landing biomechanics.
Aberrant landing biomechanics have been associated with an increased risk of both primary and secondary ACL injury, thus additional research is needed to evaluate the efficacy of treatments aimed to reduce quadriceps dysfunction and restore adequate landing biomechanics in attempts to reduce secondary ACL injury.
Whole-body Vibration (WBV) has demonstrated success in improving quadriceps function and gait biomechanics in individuals with ACLR, however its effectiveness on landing biomechanics is unknown.
To evaluate the acute effects of WBV on landing biomechanics in those with ACLR, a non-randomized crossover-controlled trial was conducted to determine if a single bout of WBV improved landing biomechanics greater than a control condition.
Participants completed two separate testing sessions (separated by at least one week) in which measures of quadriceps function and landing biomechanics were assessed before and after either a control (no WBV) or WBV intervention.
Separate linear mixed-effects models of post-test values for each dependent outcome were conducted with condition (control vs WBV) and limb (ACLR vs Uninvolved) as an interaction term, and each condition pre-test values and time post-ACLR as fixed effect covariates and a random effect of subject.
The investigators expect to observe a significant improvement in landing biomechanics following WBV compared to the control condition.
調査の概要
状態
完了
研究の種類
介入
入学 (実際)
36
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
-
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North Carolina
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Chapel Hill、North Carolina、アメリカ、27599
- Univesrity of North Carolina at Chapel HIll MOTION Science Institute
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
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
いいえ
説明
Inclusion Criteria:
- Between the ages of 18-35
- History of primary, unilateral ACLR
- Medically cleared for unrestricted physical activity
Exclusion Criteria:
- More than 5 years removed from ACLR
- Currently pregnant
- History of other lower extremity surgery
- History of lower extremity injury in previous 6 months
- History of neurological disorder
- Maximal isometric quadriceps torque > 3.0 Nm/kg in the ACLR limb
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
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：基礎科学
- 割り当て：非ランダム化
- 介入モデル：クロスオーバー割り当て
- マスキング：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：Whole body vibration followed by No Intervention (Control)
Participants in this arm will receive Whole Body Vibration followed by a washout period of 1 week, then receive the Sham Whole body vibration (Control).
Each condition will be evaluated in a single session (i.e.
acute effects).
|
Participants will stand on a WBV platform in a mini-squat position while vibration is applied during six 60-second bouts with 2 minutes of rest between each bout.
WBV will be delivered at an acceleration of 2g and a frequency of 30 Hz.
Participants will stand on a WBV platform in a mini-squat position during six 60-second bouts with 2 minutes of rest between each bout.
No vibration will be applied.
|
|
実験的：Sham Whole body vibration (Control) followed by Whole Body Vibration
Participants in this arm will receive Sham Whole body vibration (Control) followed by a washout period of 1 week, then receive Whole Body Vibration.
Each condition will be evaluated in a single session (i.e.
acute effects).
|
Participants will stand on a WBV platform in a mini-squat position while vibration is applied during six 60-second bouts with 2 minutes of rest between each bout.
WBV will be delivered at an acceleration of 2g and a frequency of 30 Hz.
Participants will stand on a WBV platform in a mini-squat position during six 60-second bouts with 2 minutes of rest between each bout.
No vibration will be applied.
|
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 |
|---|---|---|
|
Internal Knee Adduction Moment (KAM)
時間枠：Separate values prior to and immediately following the intervention (within 5 minutes).
|
Peak value during landing in both single-leg and double-leg tasks averaged over 3 trials and normalized to the product of body weight and height
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Separate values prior to and immediately following the intervention (within 5 minutes).
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|
Internal Knee Extension Moment (KEM)
時間枠：Separate values prior to and immediately following the intervention (within 5 minutes).
|
Peak value during landing in both single-leg and double-leg tasks averaged over 3 trials and normalized to a product of body weight*height
|
Separate values prior to and immediately following the intervention (within 5 minutes).
|
|
Knee Flexion Angle (KFA)
時間枠：Separate values prior to and immediately following the intervention (within 5 minutes).
|
Peak value during landing in both single-leg and double-leg tasks averaged over 3 trials
|
Separate values prior to and immediately following the intervention (within 5 minutes).
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Dynamic Postural Control
時間枠：Separate values prior to and immediately following the intervention (within 5 minutes).
|
Time-to-stabilization during single-leg landing
|
Separate values prior to and immediately following the intervention (within 5 minutes).
|
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Vertical Ground Reaction Force
時間枠：Separate values prior to and immediately following the intervention (within 5 minutes).
|
Peak value during landing in both single-leg and double-leg tasks
|
Separate values prior to and immediately following the intervention (within 5 minutes).
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Frontal Plane Kinematics
時間枠：Separate values prior to and immediately following the intervention (within 5 minutes).
|
Peak value during landing in both single-leg and double-leg tasks
|
Separate values prior to and immediately following the intervention (within 5 minutes).
|
協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
捜査官
- 主任研究者：Derek Dewig、University of North Carolina, Chapel Hill
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2021年9月1日
一次修了 (実際)
2022年4月22日
研究の完了 (実際)
2022年5月10日
試験登録日
最初に提出
2026年6月10日
QC基準を満たした最初の提出物
2026年6月25日
最初の投稿 (実際)
2026年7月2日
学習記録の更新
投稿された最後の更新 (実際)
2026年7月2日
QC基準を満たした最後の更新が送信されました
2026年6月25日
最終確認日
2026年6月1日
詳しくは
本研究に関する用語
その他の研究ID番号
- 21-0305
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?
はい
IPD プランの説明
Deidentified individual data that supports the results will be shared beginning 9 and continuing for 36 months following publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with UNC.
IPD 共有時間枠
IPD will be available beginning 9 and continuing for 36 months following publication.
IPD 共有アクセス基準
Investigator has approved IRB, IEC, or REB and an executed data use/sharing agreement with UNC.
IPD 共有サポート情報タイプ
- STUDY_PROTOCOL
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
いいえ
米国FDA規制機器製品の研究
いいえ
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