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Plyometrics for Strength and Function After Pediatric Burns

10. maj 2026 opdateret af: 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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

62

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Saudi Arabien
      • Al Kharj, Saudi Arabien
        • Prince Sattam Bin Abdulaziz University

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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.
Andet: 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.
Andre navne:
  • Plyo-Tr group
Aktiv komparator: 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.
Andet: 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.
Andre navne:
  • Kontrolintervention

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Lower-Limb Muscle Strength
Tidsramme: 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
Tidsramme: 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)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Vertical Jump Height
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Qassim University

Samarbejdspartnere

Prince Sattam Bin Abdulaziz University

Efterforskere

  • Studieleder: Maged A Basha, PhD, Qassim University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. april 2024

Primær færdiggørelse (Faktiske)

25. marts 2025

Studieafslutning (Faktiske)

25. marts 2025

Datoer for studieregistrering

Først indsendt

10. maj 2026

Først indsendt, der opfyldte QC-kriterier

10. maj 2026

Først opslået (Faktiske)

15. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2024-RHPT-017

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

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

IPD-delingstidsramme

6 months after publication

IPD-delingsadgangskriterier

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.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL

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