Effects of Whole Body Vibration on Quadriceps Function, Landing Biomechanics, and Performance in Individuals With ACL Reconstruction
25. Juni 2026 aktualisiert von: 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.
Studienübersicht
Status
Abgeschlossen
Bedingungen
Intervention / Behandlung
Studientyp
Interventionell
Einschreibung (Tatsächlich)
36
Phase
- Unzutreffend
Kontakte und Standorte
Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.
Studienorte
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North Carolina
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Chapel Hill, North Carolina, Vereinigte Staaten, 27599
- Univesrity of North Carolina at Chapel HIll MOTION Science Institute
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Teilnahmekriterien
Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Nein
Beschreibung
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
Studienplan
Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Nicht randomisiert
- Interventionsmodell: Crossover-Aufgabe
- Maskierung: Doppelt
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
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Experimental: 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).
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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.
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Experimental: 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.
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Internal Knee Adduction Moment (KAM)
Zeitfenster: Separate values prior to and immediately following the intervention (within 5 minutes).
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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)
Zeitfenster: Separate values prior to and immediately following the intervention (within 5 minutes).
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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
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Separate values prior to and immediately following the intervention (within 5 minutes).
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Knee Flexion Angle (KFA)
Zeitfenster: 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).
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Dynamic Postural Control
Zeitfenster: Separate values prior to and immediately following the intervention (within 5 minutes).
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Time-to-stabilization during single-leg landing
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Separate values prior to and immediately following the intervention (within 5 minutes).
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Vertical Ground Reaction Force
Zeitfenster: Separate values prior to and immediately following the intervention (within 5 minutes).
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Peak value during landing in both single-leg and double-leg tasks
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Separate values prior to and immediately following the intervention (within 5 minutes).
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Frontal Plane Kinematics
Zeitfenster: Separate values prior to and immediately following the intervention (within 5 minutes).
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Peak value during landing in both single-leg and double-leg tasks
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Separate values prior to and immediately following the intervention (within 5 minutes).
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Mitarbeiter und Ermittler
Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.
Ermittler
- Hauptermittler: Derek Dewig, University of North Carolina, Chapel Hill
Studienaufzeichnungsdaten
Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.
Haupttermine studieren
Studienbeginn (Tatsächlich)
1. September 2021
Primärer Abschluss (Tatsächlich)
22. April 2022
Studienabschluss (Tatsächlich)
10. Mai 2022
Studienanmeldedaten
Zuerst eingereicht
10. Juni 2026
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
25. Juni 2026
Zuerst gepostet (Tatsächlich)
2. Juli 2026
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
2. Juli 2026
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
25. Juni 2026
Zuletzt verifiziert
1. Juni 2026
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- 21-0305
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
JA
Beschreibung des IPD-Plans
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-Sharing-Zeitrahmen
IPD will be available beginning 9 and continuing for 36 months following publication.
IPD-Sharing-Zugriffskriterien
Investigator has approved IRB, IEC, or REB and an executed data use/sharing agreement with UNC.
Art der unterstützenden IPD-Freigabeinformationen
- STUDIENPROTOKOLL
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Nein
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Nein
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