- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07716319
Comparison Between Eccentric Hamstring Training and Sprint-Specific Training
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.
Přehled studie
Postavení
Intervence / Léčba
Detailní popis
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.
Typ studie
Zápis (Odhadovaný)
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
- Jméno: Scott K Crawford, PhD
- Telefonní číslo: 608) 265-1308
- E-mail: skcrawford2@wisc.edu
Studijní místa
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Wisconsin
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Madison, Wisconsin, Spojené státy, 53705
- University of Wisconsin - Madison
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Kontakt:
- Scott K Crawford, PhD
- Telefonní číslo: 608-265-1308
- E-mail: skcrawford2@wisc.edu
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-
Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
Přijímá zdravé dobrovolníky
Popis
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
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Jiný
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Dvojnásobek
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
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Experimentální: 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.
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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.
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Experimentální: 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
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The NHE will be performed with a 6 second eccentric component.
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Experimentální: 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.
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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.
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Časové okno |
|---|---|
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Change in fascicle length (FL)
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in muscle cross-sectional area (CSA)
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in muscle volume
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in pennation angle (PA)
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
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Change in eccentric strength
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Eccentric hamstring strength of each limb will be assessed during the hamstring exercise.
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in inertial measurement units (IMU)-based sprinting biomechanics
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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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.
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in countermovement jump (CMJ) performance
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in standing broad jump (SBJ) performance
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in change of direction (CoD) performance
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in range of motion (ROM) performance
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in hip flexion
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Change in anterior pelvic tilt
Časové okno: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
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Spolupracovníci a vyšetřovatelé
Sponzor
Spolupracovníci
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
Další identifikační čísla studie
- 2026-0704
- UWMSN | SOE | Kinesiology Oper (Jiný identifikátor: UW- Madison)
- Protocol Version 5/5/26 (Jiný identifikátor: UW- Madison)
Plán pro data jednotlivých účastníků (IPD)
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