Comparison Between Eccentric Hamstring Training and Sprint-Specific Training
15 de julio de 2026 actualizado por: 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.
Descripción general del estudio
Estado
Aún no reclutando
Intervención / Tratamiento
Descripción detallada
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.
Tipo de estudio
Intervencionista
Inscripción (Estimado)
90
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Estudio Contacto
- Nombre: Scott K Crawford, PhD
- Número de teléfono: 608) 265-1308
- Correo electrónico: skcrawford2@wisc.edu
Ubicaciones de estudio
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Wisconsin
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Madison, Wisconsin, Estados Unidos, 53705
- University of Wisconsin - Madison
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Contacto:
- Scott K Crawford, PhD
- Número de teléfono: 608-265-1308
- Correo electrónico: skcrawford2@wisc.edu
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Sí
Descripción
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
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Otro
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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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.
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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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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
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The NHE will be performed with a 6 second eccentric component.
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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.
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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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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
|---|---|
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Change in fascicle length (FL)
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in eccentric strength
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Estimado)
1 de septiembre de 2026
Finalización primaria (Estimado)
1 de septiembre de 2027
Finalización del estudio (Estimado)
1 de septiembre de 2027
Fechas de registro del estudio
Enviado por primera vez
7 de julio de 2026
Primero enviado que cumplió con los criterios de control de calidad
15 de julio de 2026
Publicado por primera vez (Actual)
21 de julio de 2026
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
21 de julio de 2026
Última actualización enviada que cumplió con los criterios de control de calidad
15 de julio de 2026
Última verificación
1 de julio de 2026
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 2026-0704
- UWMSN | SOE | Kinesiology Oper (Otro identificador: UW- Madison)
- Protocol Version 5/5/26 (Otro identificador: UW- Madison)
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
NO
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
Ensayos clínicos sobre RDL
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Riverside Pharmacueticals CorporationTerminado
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University of Wisconsin, MadisonTerminadoSaludable | Entrenamiento de ejercicio | Correr | Elastografía | Deporte | Imágenes de ultrasonidoEstados Unidos