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Effects of Small-Sided Games and Repeated Sprint Training in Young Soccer Players

4 de septiembre de 2026 actualizado por: Muhammed Zahit Kahraman, Bitlis Eren University

Effects of Small-Sided Games and Repeated Sprint Training on Body Composition, Anaerobic Power, and Selected Biomotor Characteristics in Young Male Soccer Players

The purpose of this study is to compare the effects of 6-week Small-Sided Games (SSG) and Repeated Sprint Training (RST) on body composition, anaerobic power, and selected physical performance qualities in young male soccer players. A total of 24 active male soccer players (aged 16 to 20 years) participating in the Regional Amateur League were randomly assigned into three equal groups: Small-Sided Games Group (SSGG) completing a 4 vs. 4 transition possession game 3 days a week in addition to routine training, Repeated Sprint Training Group (RSTG) completing a 20-meter maximal repeated sprint protocol 3 days a week in addition to routine training, and Control Group (CG) continuing only their routine soccer practice schedule. Before and after the 6-week intervention, participants underwent laboratory and field testing to evaluate body composition (body fat percentage, fat-free mass, BMI), acceleration and maximal speed (10m and 20m sprint tests), agility (Illinois Agility Test), explosive lower-body power (countermovement jump), and maximal anaerobic power (30-second Wingate test) to determine which specific training method provides superior athletic adaptations.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

High-intensity intermittent actions, such as accelerations, change-of-direction movements, jumps, and repeated sprints, are critical determinants of competitive performance in soccer. To optimize these physical attributes, coaches commonly utilize Small-Sided Games (SSG) and Repeated Sprint Training (RST). However, comparative evidence regarding the specific adaptations induced by these two distinct conditioning strategies alongside regular soccer practice remains crucial for athletic periodization.

This 6-week randomized controlled trial evaluated 24 young male soccer players randomly allocated into three parallel arms (n=8 per group): SSGG, RSTG, and a Control Group (CG).

Training Protocols:

  • SSGG Protocol: Performed a "4 vs. 4 Transition Possession" format on two adjacent zones 3 days per week (Mondays, Wednesdays, Fridays) after the technical section of regular practice. Training volume progressed from 3 sets x 3 min (weeks 1-2) to 4 sets x 3 min (weeks 3-4) and 4 sets x 4 min (weeks 5-6), with 2-minute passive recovery between sets.
  • RSTG Protocol: Performed 20-meter linear maximal sprints with 20 seconds of active recovery (slow walking) between repetitions and 3-4 minutes of passive rest between sets. Volume progressed from 2 sets x 6 reps (weeks 1-2) to 2 sets x 8 reps (weeks 3-4) and 3 sets x 6 reps (weeks 5-6).
  • Control Group: Maintained standard soccer training sessions planned by the head coach, without any additional physical conditioning intervention.

Assessments:

Body composition parameters were evaluated via bioelectrical impedance analysis (Tanita BC-418 MA). Laboratory testing included the 30-second Wingate Anaerobic Test (Monark 834 E) with a load equal to 7.5% of body weight to assess peak and mean anaerobic power. Field testing included 10m and 20m sprint times using electronic photocells (Smart Speed Lite), change-of-direction performance via the Illinois Agility Test, and lower-body explosive power via the Countermovement Jump test (Smart Jump mat).

Tipo de estudio

Intervencionista

Inscripción (Actual)

24

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.

Ubicaciones de estudio

    • Central
      • Muş, Central, Turquía (Türkiye), 49100
        • Football Facilities of the Mus Provincial Directorate of Youth and Sports / Mus Alparslan University Exercise Physiology Laboratory

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

  • Niño
  • Adulto

Acepta Voluntarios Saludables

Sí

Descripción

Inclusion Criteria:

  • Active male soccer players competing in the Regional Amateur League (BAL)
  • Age between 16 and 20 years
  • Voluntary participation with signed informed consent (and parental consent for minors)
  • No history of severe musculoskeletal injuries or orthopedic surgeries in the lower extremities within the past 6 months
  • Regular participation in team soccer practices

Exclusion Criteria:

  • Missing more than 10% of the scheduled training sessions during the 6-week intervention
  • Occurrence of any acute musculoskeletal injury or illness preventing full participation in tests or training
  • Simultaneous participation in external structured strength or conditioning programs outside the study protocol
  • Failure to complete all pre- or post-intervention performance tests

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: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Small-Sided Games Group (SSGG)
Participants performed a 4 vs. 4 directional possession game ("4v4 Transition Possession") in addition to their routine soccer training, 3 days per week for 6 weeks.
4 vs. 4 transition possession game played 3 days/week for 6 weeks. Loading progressed from 3 sets x 3 min (weeks 1-2) to 4 sets x 3 min (weeks 3-4) and 4 sets x 4 min (weeks 5-6), with 2 min rest between sets.
Standard technical, tactical, and physical conditioning soccer training sessions directed by the team's head coach.
Experimental: Repeated Sprint Training Group (RSTG)
Participants performed a 20-meter repeated sprint training protocol (100% maximal effort, 20s active rest between repetitions, 3-4 min rest between sets) in addition to their routine soccer training, 3 days per week for 6 weeks.
Standard technical, tactical, and physical conditioning soccer training sessions directed by the team's head coach.
20-meter linear repeated sprints at 100% maximal effort 3 days/week for 6 weeks. Loading progressed from 2 sets x 6 reps (weeks 1-2) to 2 sets x 8 reps (weeks 3-4) and 3 sets x 6 reps (weeks 5-6), with 20s active recovery between reps and 3-4 min rest between sets.
Comparador activo: Control Group (Routine Soccer Training)
Participants engaged exclusively in their regular team soccer training sessions (technical, tactical, and conditioning drills) 3 days per week for 6 weeks, without any additional specialized sprint or small-sided game interventions.
Standard technical, tactical, and physical conditioning soccer training sessions directed by the team's head coach.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
10-Meter Sprint Time
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Measured using a wireless photocell timing gate system (Smart Speed Lite) to evaluate short-distance acceleration. The best time of two trials was recorded in seconds.
Baseline (Week 0) and Post-intervention (Week 6)
20-Meter Sprint Time
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Measured using a wireless photocell timing gate system (Smart Speed Lite) to evaluate maximal linear speed. The best time of two trials was recorded in seconds.
Baseline (Week 0) and Post-intervention (Week 6)
Illinois Agility Test Time
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Evaluated using electronic photocell gates to assess change-of-direction ability and reactivity on a 10x5 meter course. The best time of two trials was recorded in seconds.
Baseline (Week 0) and Post-intervention (Week 6)
Countermovement Jump Height
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Lower-body explosive power was measured using a jump mat system (Smart Speed Lite Smart Jump). Participants performed maximal vertical jumps with hands on hips. The best height of two trials was recorded in centimeters.
Baseline (Week 0) and Post-intervention (Week 6)
Wingate Peak Power
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Maximal anaerobic power evaluated via a 30-second Wingate Anaerobic Test on a Monark 834 E bicycle ergometer with a load equal to 7.5% of body weight. Expressed in Watts per kilogram (W/kg).
Baseline (Week 0) and Post-intervention (Week 6)
Wingate Mean Power
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Anaerobic capacity evaluated via a 30-second Wingate test. Expressed in Watts per kilogram (W/kg).
Baseline (Week 0) and Post-intervention (Week 6)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Body Fat Percentage
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Evaluated via bioelectrical impedance analysis using Tanita BC-418 MA to measure total body fat percentage (%).
Baseline (Week 0) and Post-intervention (Week 6)
Fat-Free Mass
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Evaluated via bioelectrical impedance analysis using Tanita BC-418 MA to assess lean body mass in kilograms.
Baseline (Week 0) and Post-intervention (Week 6)
Body Mass Index
Periodo de tiempo: Baseline (Week 0) and Post-intervention (Week 6)
Calculated as body weight in kilograms divided by height in meters squared (kg/m²) using Tanita BC-418 MA.
Baseline (Week 0) and Post-intervention (Week 6)

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Colaboradores

Investigadores

  • Investigador principal: Muhammed Z Kahraman, PhD, Bitlis Eren University

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 (Actual)

12 de enero de 2026

Finalización primaria (Actual)

28 de febrero de 2026

Finalización del estudio (Actual)

11 de junio de 2026

Fechas de registro del estudio

Enviado por primera vez

2 de septiembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

2 de septiembre de 2026

Publicado por primera vez (Actual)

8 de septiembre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

9 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

4 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • BEU-ANT-MZK-03

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

IPD will not be made publicly available to protect participant privacy and maintain confidentiality. Aggregated statistical data and summary results are fully presented within the published study/thesis and are available from the corresponding author upon reasonable academic request.

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. .