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Plyometrics for Strength and Function After Pediatric Burns

10 de mayo de 2026 actualizado por: Maged Basha, Qassim University

Rebuilding Capacity With Plyometrics: A Novel and Potent Stimulus for Strength and Power, and Functional Performance in Pediatric Post-Burn Population

Pediatric burn survivors may experience persistent deficits in lower-limb strength, explosive power, and functional performance after hospital discharge. This randomized controlled trial evaluated whether a 12-week supervised plyometric training program improves lower-extremity muscle strength, power, and functional capacity compared with a standard exercise program in children and adolescents with severe burn injuries.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

This two-arm, parallel-group, single-blind randomized controlled trial included 62 pediatric burn survivors aged 10-18 years with severe burns involving ≥30% total body surface area and lower-limb involvement. Participants were recruited 6-12 months after hospital discharge and randomly allocated in a 1:1 ratio to either plyometric training or standard exercise.

Both groups received supervised exercise twice weekly for 12 weeks. The experimental group completed progressive plyometric exercises designed to enhance lower-extremity explosive power and dynamic functional mobility. The control group received standard post-discharge rehabilitation focused on flexibility, aerobic conditioning, mobility, and basic strengthening. Outcomes were assessed at baseline and immediately after the 12-week intervention by blinded assessors.

Tipo de estudio

Intervencionista

Inscripción (Actual)

62

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

  • Arabia Saudita
      • Al Kharj, Arabia Saudita
        • Prince Sattam Bin Abdulaziz University

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

No

Descripción

Inclusion Criteria:

  • Children and adolescents aged 10-18 years at the time of enrolment.
  • History of severe burn injury involving ≥30% total body surface area (TBSA), with lower-extremity involvement.
  • Between 6 and 12 months post-hospital discharge.
  • Ability to understand study instructions and safely perform the prescribed exercise program.

Exclusion Criteria:

  • Pre-existing neurological or musculoskeletal disorders that may affect lower-limb function or study outcomes.
  • Severe lower-limb joint contracture limiting functional movement.
  • Cognitive impairment preventing understanding of instructions or reliable participation.
  • Participation in another structured exercise, rehabilitation, or physical therapy program outside the study protocol during the trial period.

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: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Plyometric Training Group
Participants received a 12-week supervised plyometric training program, twice weekly, with each session lasting 45 minutes. Sessions included dynamic warm-up, progressive plyometric exercises targeting vertical and horizontal force production, and cool-down.
Otro: Plyometric Training
Participants in the plyometric training group will receive a 12-week supervised program, with each session lasting 45 minutes and designed to improve lower-extremity explosive power and dynamic functional mobility. Sessions will include a 5-minute dynamic warm-up, 35 minutes of progressive plyometric exercises targeting vertical and horizontal force production, and a 5-minute cool-down. Training will be individually supervised with safety measures including shock-absorbing flooring, cushioned footwear, technique monitoring, and standardized rest intervals.
Otros nombres:
  • Plyo-Tr group
Comparador activo: Standard Exercise Group
Participants received a 12-week supervised standard exercise program, twice weekly, with each session lasting 45 minutes. Sessions focused on flexibility, aerobic conditioning, mobility, and basic lower-limb strengthening.
Otro: Standard Exercise Program
Participants in the control group will receive a 12-week supervised program, with each session lasting 45 minutes post-discharge burn rehabilitation program focusing on mobility, flexibility, aerobic conditioning, and basic lower-limb strengthening. Sessions will include warm-up, stretching, moderate-intensity aerobic exercise at 50-70% of age-predicted maximum heart rate, strengthening exercises, and cool-down, with progression based on participant tolerance.
Otros nombres:
  • Intervención de control

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Lower-Limb Muscle Strength
Periodo de tiempo: pre-intervention (Week 0)
Quadriceps and hamstring strength will be assessed using an isokinetic dynamometer. After standardized positioning, stabilization, warm-up, and familiarization, participants will perform five maximal reciprocal knee extension/flexion repetitions. The highest peak torque value (Nm) for hamstrings and quadriceps will be recorded.
pre-intervention (Week 0)
Lower-Limb Muscle Strength
Periodo de tiempo: immediately post-intervention (Week 12)
Quadriceps and hamstring strength will be assessed using an isokinetic dynamometer. After standardized positioning, stabilization, warm-up, and familiarization, participants will perform five maximal reciprocal knee extension/flexion repetitions. The highest peak torque value (Nm) for hamstrings and quadriceps will be recorded.
immediately post-intervention (Week 12)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Vertical Jump Height
Periodo de tiempo: pre-intervention (Week 0)
Vertical Jump Test: Lower-limb explosive power will be assessed using a vertical jump performed on a force plate. Participants will jump maximally with hands on hips to minimize arm contribution, completing three trials with 60 seconds of rest between trials. The highest jump height will be recorded in centimeters.
pre-intervention (Week 0)
Vertical Jump Height
Periodo de tiempo: immediately post-intervention (Week 12)
Vertical Jump Test: Lower-limb explosive power will be assessed using a vertical jump performed on a force plate. Participants will jump maximally with hands on hips to minimize arm contribution, completing three trials with 60 seconds of rest between trials. The highest jump height will be recorded in centimeters.
immediately post-intervention (Week 12)
Broad Jump Distance
Periodo de tiempo: pre-intervention (Week 0)
Horizontal lower-limb power and dynamic leg strength will be assessed using the broad jump test. Participants will perform three maximal two-footed forward jumps from a marked starting line, with 60 seconds of rest between trials. The longest distance, measured from the starting line to the rearmost landing point, will be recorded in centimeters.
pre-intervention (Week 0)
Broad Jump Distance
Periodo de tiempo: immediately post-intervention (Week 12)
Horizontal lower-limb power and dynamic leg strength will be assessed using the broad jump test. Participants will perform three maximal two-footed forward jumps from a marked starting line, with 60 seconds of rest between trials. The longest distance, measured from the starting line to the rearmost landing point, will be recorded in centimeters.
immediately post-intervention (Week 12)
Reactive Strength Index
Periodo de tiempo: pre-intervention (Week 0)
Reactive strength will be assessed using a drop jump from a 30-cm box onto a force plate. Three trials will be performed with 60 seconds of rest, and the highest reactive strength index value, calculated as jump height divided by ground contact time, will be recorded.
pre-intervention (Week 0)
Reactive Strength Index
Periodo de tiempo: immediately post-intervention (Week 12)
Reactive strength will be assessed using a drop jump from a 30-cm box onto a force plate. Three trials will be performed with 60 seconds of rest, and the highest reactive strength index value, calculated as jump height divided by ground contact time, will be recorded.
immediately post-intervention (Week 12)
Lower Extremity Functional Scale Score
Periodo de tiempo: pre-intervention (Week 0)
Lower-limb functional ability will be assessed using the 20-item Lower Extremity Functional Scale, which evaluates perceived difficulty in activities such as walking, running, stair climbing, and squatting. Each item is scored from 0 to 4, with a total score ranging from 0 to 80. Higher scores indicate better functional capacity.
pre-intervention (Week 0)
Lower Extremity Functional Scale Score
Periodo de tiempo: immediately post-intervention (Week 12)
Lower-limb functional ability will be assessed using the 20-item Lower Extremity Functional Scale, which evaluates perceived difficulty in activities such as walking, running, stair climbing, and squatting. Each item is scored from 0 to 4, with a total score ranging from 0 to 80. Higher scores indicate better functional capacity.
immediately post-intervention (Week 12)
Six-Minute Walk Test Distance
Periodo de tiempo: pre-intervention (Week 0)
Functional exercise capacity will be assessed using the Six-Minute Walk Test performed along a 30-meter indoor corridor according to standardized guidelines. Participants will be instructed to walk as far as possible, without running, within six minutes, and the total distance covered will be recorded in meters.
pre-intervention (Week 0)
Six-Minute Walk Test Distance
Periodo de tiempo: immediately post-intervention (Week 12)
Functional exercise capacity will be assessed using the Six-Minute Walk Test performed along a 30-meter indoor corridor according to standardized guidelines. Participants will be instructed to walk as far as possible, without running, within six minutes, and the total distance covered will be recorded in meters.
immediately post-intervention (Week 12)
Timed Up and Down Stairs Performance
Periodo de tiempo: pre-intervention (Week 0)
Lower-limb power, agility, and dynamic balance will be assessed using the Timed Up and Down Stairs test. Participants will ascend and descend 10 standard stairs as quickly and safely as possible, with two trials performed and the fastest time recorded in seconds.
pre-intervention (Week 0)
Timed Up and Down Stairs Performance
Periodo de tiempo: immediately post-intervention (Week 12)
Lower-limb power, agility, and dynamic balance will be assessed using the Timed Up and Down Stairs test. Participants will ascend and descend 10 standard stairs as quickly and safely as possible, with two trials performed and the fastest time recorded in seconds.
immediately post-intervention (Week 12)
4×10-Meter Shuttle Run Time
Periodo de tiempo: pre-intervention (Week 0)
Agility and speed will be assessed using the 4×10-meter shuttle run test. Participants will run back and forth between two cones placed 10 meters apart, completing four 10-meter segments for a total distance of 40 meters. Two trials will be performed, and the fastest completion time will be recorded in seconds.
pre-intervention (Week 0)
4×10-Meter Shuttle Run Time
Periodo de tiempo: immediately post-intervention (Week 12)
Agility and speed will be assessed using the 4×10-meter shuttle run test. Participants will run back and forth between two cones placed 10 meters apart, completing four 10-meter segments for a total distance of 40 meters. Two trials will be performed, and the fastest completion time will be recorded in seconds.
immediately post-intervention (Week 12)
Figure-of-8 Walk/Run Test Time
Periodo de tiempo: pre-intervention (Week 0)
Dynamic balance, agility, and coordination will be assessed using the Figure-of-8 Walk/Run Test. Participants will complete two full loops around two cones placed 5 meters apart as quickly as possible. Two trials will be performed, and the fastest completion time will be recorded in seconds.
pre-intervention (Week 0)
Figure-of-8 Walk/Run Test Time
Periodo de tiempo: immediately post-intervention (Week 12)
Dynamic balance, agility, and coordination will be assessed using the Figure-of-8 Walk/Run Test. Participants will complete two full loops around two cones placed 5 meters apart as quickly as possible. Two trials will be performed, and the fastest completion time will be recorded in seconds.
immediately post-intervention (Week 12)

Colaboradores e Investigadores

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

Patrocinador

Qassim University

Colaboradores

Prince Sattam Bin Abdulaziz University

Investigadores

  • Director de estudio: Maged A Basha, PhD, Qassim University

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

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)

1 de abril de 2024

Finalización primaria (Actual)

25 de marzo de 2025

Finalización del estudio (Actual)

25 de marzo de 2025

Fechas de registro del estudio

Enviado por primera vez

10 de mayo de 2026

Primero enviado que cumplió con los criterios de control de calidad

10 de mayo de 2026

Publicado por primera vez (Actual)

15 de mayo de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

15 de mayo de 2026

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

10 de mayo de 2026

Última verificación

1 de mayo de 2026

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • 2024-RHPT-017

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

SÍ

Descripción del plan IPD

De-identified individual participant data supporting the published results will be available from the corresponding author upon reasonable request.

Marco de tiempo para compartir IPD

6 months after publication

Criterios de acceso compartido de IPD

Requests will be reviewed for scientific relevance, methodological quality, and approval by all co-authors. Data will be shared after approval and, if required, completion of a data-sharing agreement.

Tipo de información de apoyo para compartir IPD

  • PROTOCOLO DE ESTUDIO

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. .

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