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Comparison Between Eccentric Hamstring Training and Sprint-Specific Training

15. Juli 2026 aktualisiert von: University of Wisconsin, Madison

Comparison Between Eccentric Hamstring Strength Training and Sprint-Specific Training on Muscle Hypertrophy, Strength, Power, and Sprint Performance in Club Sport Collegiate Athletes

The purpose of this study is to compare the effects of an intensity-, volume-, and time under tension-matched eccentric hamstring exercise intervention with the Romanian deadlift (RDL) and the Nordic hamstring exercise (NHE) to a sprint-specific training program on hamstring muscle architecture, volume, sprint performance, strength, and power.

Participants will be assigned to complete one of the 3 hamstring interventions for 10 weeks.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Prior to the intervention, participants will undergo baseline testing which will include a) ultrasound imaging of the hamstrings muscles for measures of biceps femoris long head fascicle length, pennation angle, muscle thickness, anatomical cross-sectional area, and muscle volume b) passive and active ranges of motion, c) 3 repetition maximum (3RM) RDL strength, d) peak NHE force, e) countermovement jump height, f) broad jump distance, g) Pro Agility change of direction, and h) a 60 m sprint with sprint kinematics assessed via inertial measurement units.

Participants will be randomly assigned to either the RDL, NHE, or sprint training group. After randomization, each participant will undergo the intervention program based upon their group allocation.

Performance testing and imaging will be repeated mid-intervention, following the intervention, and after 2 weeks of deloading.

Studientyp

Interventionell

Einschreibung (Geschätzt)

90

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

  • Vereinigte Staaten
    • Wisconsin
      • Madison, Wisconsin, Vereinigte Staaten, 53705
        • University of Wisconsin - Madison
        • Kontakt:

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

Ja

Beschreibung

Inclusion Criteria:

  • Age 18-25 years
  • Actively participating in a club team
  • >6 months experience with resistance training
  • Minimum of 1 year experience at the high school level in organized team sport
  • No history of hamstring injury within the last 6 months
  • No history of major lower extremity surgery (including back)
  • No acute musculoskeletal injury to the lower extremity
  • Not currently pregnant

Exclusion Criteria:

  • Unable to refrain from resistance training outside the study
  • Unable to make at least 80% of the training sessions
  • Hamstring injury in the last 6 months
  • History of major lower extremity surgery (including back)
  • Acute musculoskeletal injury to the lower extremity
  • Currently pregnant

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Sonstiges
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Doppelt

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Romanian dead lift (RDL) group
The training intervention groups will undergo the same program with the only difference being the interventional hamstring exercise. The program will consist of a 2-week familiarization period followed by 8 weeks of progressive training. The RDL arm will perform RDL.
Sonstiges: RDL
The RDL will be performed with a 6 second eccentric component with the athlete returning to the start position with a maximal concentric hip extension.
Experimental: Nordic hamstring exercise (NHE) group
The training intervention groups will undergo the same program with the only difference being the interventional hamstring exercise. The program will consist of a 2-week familiarization period followed by 8 weeks of progressive training. The NHE arm will performed NHE
Sonstiges: NHE
The NHE will be performed with a 6 second eccentric component.
Experimental: Sprint group
The training intervention groups will undergo the same program with the only difference being the interventional hamstring exercise. The program will consist of a 2-week familiarization period followed by 8 weeks of progressive training. The sprint training program will be performed twice per week with the first day of training focused on shorter distances to focus on acceleration and the second training day focused on maximal velocity. The relative efforts and distances for each training day will mimic a similar prescription to that of the resistance training program.
Sonstiges: Sprint testing
The sprint training program will be performed twice per week with the first day of training focused on shorter distances to focus on acceleration and the second training day focused on maximal velocity. The relative efforts and distances for each training day will mimic a similar prescription to that of the resistance training program.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Zeitfenster
Change in fascicle length (FL)
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in muscle cross-sectional area (CSA)
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in muscle volume
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in pennation angle (PA)
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in eccentric strength
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Eccentric hamstring strength of each limb will be assessed during the hamstring exercise.
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in inertial measurement units (IMU)-based sprinting biomechanics
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Sprinting biomechanics will be assessed using seven IMUs (sacrum, both thighs, both shanks, both feet). Lower extremity joint motions referenced to upright stance will be calculated throughout an on-field sprint and other football drills.
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in countermovement jump (CMJ) performance
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in standing broad jump (SBJ) performance
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in change of direction (CoD) performance
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in range of motion (ROM) performance
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in hip flexion
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Change in anterior pelvic tilt
Zeitfenster: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University of Wisconsin, Madison

Mitarbeiter

National Strength and Conditioning Association (NSCA) Foundation

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 (Geschätzt)

1. September 2026

Primärer Abschluss (Geschätzt)

1. September 2027

Studienabschluss (Geschätzt)

1. September 2027

Studienanmeldedaten

Zuerst eingereicht

7. Juli 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

15. Juli 2026

Zuerst gepostet (Tatsächlich)

21. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

21. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

15. Juli 2026

Zuletzt verifiziert

1. Juli 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 2026-0704
  • UWMSN | SOE | Kinesiology Oper (Andere Kennung: UW- Madison)
  • Protocol Version 5/5/26 (Andere Kennung: UW- Madison)

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

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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