Comparison Between Eccentric Hamstring Training and Sprint-Specific Training
Healthy Adult · Athlete · Exercise Training · Sport · Running · Ultrasound Imaging
De qué trata este estudio
El registro indica que este estudio recluta participantes. La disponibilidad puede variar por centro.
- Tipo de estudio
- De intervención
- Fase
- No aplica
- Rango de edad
- 18 años - 25 años
- Sexo admitido
- Todos los sexos
- Voluntarios sanos
- Aceptados
- Participantes
- 90 Estimado
Estos son puntos de partida, no una decisión de elegibilidad. El equipo debe revisar todos los requisitos.
Las explicaciones y la navegación están en español. Los textos proporcionados por el registro, incluidos títulos, resúmenes y criterios, se conservan en su idioma original. Puedes pedir orientación en español a WCR.
Acerca de la investigación
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.
Leer la descripción completa
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.
¿Quién podría participar?
La lista siguiente contiene el texto del patrocinador. Puede incluir condiciones, tratamientos previos, resultados de pruebas y otros requisitos. Aparecer en tu búsqueda no significa que califiques.
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
Tratamiento, grupos y participación
El registro puede describir tratamientos y duración sin incluir un calendario completo. Pide al equipo las visitas, procedimientos, riesgos, costos y alternativas. Mantén tu atención habitual salvo que tu médico te indique un cambio.
- Asignación
- Asignación al azar
- Enmascaramiento
- Enmascaramiento doble
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.
Other: RDL
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
Other: NHE
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.
Other: Sprint testing
RDL OTHER
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.
NHE OTHER
The NHE will be performed with a 6 second eccentric component.
Sprint testing OTHER
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.
Qué evalúan los investigadores
Estas medidas indican qué se estudia. No prueban que un tratamiento funcione.
Medidas principales
Change in fascicle length (FL)
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in muscle cross-sectional area (CSA)
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in muscle volume
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in pennation angle (PA)
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Medidas secundarias
Change in eccentric strength
Plazo: 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.
Change in inertial measurement units (IMU)-based sprinting biomechanics
Plazo: 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.
Change in countermovement jump (CMJ) performance
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in standing broad jump (SBJ) performance
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in change of direction (CoD) performance
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in range of motion (ROM) performance
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in hip flexion
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Change in anterior pelvic tilt
Plazo: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks)
No informado en este registro.
Revisa las tablas completas y sus limitaciones en el registro oficial.
Abrir resultados oficiales ↗Centros de investigación (1)
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1 centros
University of Wisconsin - MadisonMadison, Wisconsin, United StatesReclutando
Equipo y fechas
- Patrocinador principal
- University of Wisconsin, Madison
- Inicio del estudio
- 28 ago 2026 Real
- Finalización primaria
- 2027-09 Estimado
- Finalización del estudio
- 2027-09 Estimado
- Primera publicación
- 21 jul 2026 Real
- Última actualización
- 10 nov 2026 Real
Contactos oficiales del estudio
Título oficial del estudio
Comparison Between Eccentric Hamstring Strength Training and Sprint-Specific Training on Muscle Hypertrophy, Strength, Power, and Sprint Performance in Club Sport Collegiate Athletes
Consulta a Wellness Clinical Research
Tu mensaje va a WCR, incluso si otra organización realiza este estudio. WCR puede orientarte, pero podría no realizar este estudio, tener acceso a su equipo ni poder inscribirte.
Fuente: API v2 de ClinicalTrials.gov. Patrocinadores e investigadores envían la información. La NLM no aprueba la seguridad ni la ciencia de todos los estudios registrados. Aviso del registro.
Consultado: 12 nov 2026 · Última actualización del registro: 10 nov 2026