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Recovery Strategies and Diurnal Variation in Adolescent Judokas (RECOV-JUDO)

8. maj 2026 opdateret af: Assoc. Prof. Dr. Özgür EKEN, Inonu University

Comparative Effects of Sports Massage, Passive Rest, and Static Stretching on Physiological and Neuromuscular Recovery in Adolescent Judokas: The Role of Diurnal Variation

The purpose of this study is to compare the effects of three different recovery strategies-sports massage (SM), static stretching (SS), and passive rest (PR)-on physiological and neuromuscular recovery in adolescent male judokas. Additionally, the study investigates the role of diurnal variation (morning vs. evening sessions) on recovery performance.

Thirteen competitive adolescent judokas participated in a randomized crossover design. Recovery was assessed using physiological markers such as heart rate (HR) and blood lactate (La-) levels, as well as neuromuscular performance through countermovement jump (CMJ) and medicine ball throw tests. The findings aim to identify the most effective recovery modality for young athletes to optimize performance and prevent overtraining during intensive training or competition schedules.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This study employed a randomized, crossover experimental design to evaluate the efficacy of different recovery modalities in adolescent judokas. Participants underwent three distinct recovery protocols-Sports Massage (SM), Static Stretching (SS), and Passive Rest (PR)-following a standardized high-intensity exercise bout designed to induce fatigue.

Each recovery session lasted 15 minutes. To account for the influence of circadian rhythms, the protocols were conducted during both morning (08:00-10:00) and evening (17:00-19:00) sessions, with a minimum of 48 hours between sessions to ensure full recovery.

Physiological recovery was monitored through blood lactate concentration (La-) and heart rate (HR) measurements taken at baseline, immediately post-exercise, and at specific intervals during the recovery period. Neuromuscular performance was assessed through the Countermovement Jump (CMJ) test to measure lower-body power and the Medicine Ball Throw test for upper-body explosive strength. Statistical analysis was performed to compare the recovery rates and performance maintenance across the three modalities and two diurnal time points.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

13

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

  • Tyrkiet (Türkiye)
    • Malatya
      • Malatya, Malatya, Tyrkiet (Türkiye), 44280
        • Inonu University, Faculty of Sport Sciences

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

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Active male judo athletes with at least orange belt
  • Aged between 10-13 years
  • Having at least 2 years of experience in judo training
  • Active participation in national or international competitions
  • Voluntary participation and signing the informed consent form

Exclusion Criteria:

  • Any chronic disease or cardiovascular problems
  • Upper or lower limb injuries within last 6 months that might affect performance
  • Use of performance-enhancing supplements or medications during the study period
  • Smoking or regular alcohol consumption

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Sport Massage (SM)
Participants received a 10- minute sports massage focusing on the lower and upper body muscles
Andet: Sports Massage
A 10-minute sports massage protocol was applied to the major muscle groups of the lower and upper body, specifically those involved in judo movements, to facilitate recovery.
Andre navne:
  • SM
Eksperimentel: Static Stretching (SS)
Participants performed 10 minutes of static stretching exercises targeting major muscle groups.
Andet: Static Stretching
A 10-minute static stretching session involving major muscle groups. Each stretch was held for a duration consistent with clinical standards to the point of mild discomfort
Andre navne:
  • SS
Eksperimentel: Passive Rest (PR)
Participants rested quietly in a seated position for 10 minutes
Andet: Passive Rest
Participants rested quietly in a seated position for 10 minutes in a neutral environment, with no physical activity or external stimulation.
Andre navne:
  • PS

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
blood lactate concentration
Tidsramme: Measured at 4 time points: Baseline (before exercise), immediately after exercise, 5 minutes after recovery protocol, and 10 minutes after recovery protocol.
Lactate levels were measured to assess the physiological recovery of the participants after judo-specific tasks.
Measured at 4 time points: Baseline (before exercise), immediately after exercise, 5 minutes after recovery protocol, and 10 minutes after recovery protocol.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Countermovement jump height
Tidsramme: Baselibe (pre-post) and after 10-minute recovery period
Measured in centimeters to assess lower-body explosive power and neuromuscular fatigue
Baselibe (pre-post) and after 10-minute recovery period
Handgrip strength
Tidsramme: Baseline (pre-test) and after the 10-minute recovery period
measured in kilograms using a hand dynamometer for both dominant and non-dominant hands to assess upper-body strength
Baseline (pre-test) and after the 10-minute recovery period
Borg Rating of Perceived Exertion
Tidsramme: Immediately after the judo match
Subjective assessment of effort using the 6-20 Borg scale
Immediately after the judo match

Samarbejdspartnere og efterforskere

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

Sponsor

Inonu University

Efterforskere

  • Ledende efterforsker: Özgür Eken, Associate Professor, Inonu University, Faculty of Sport Sciences

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)

5. marts 2024

Primær færdiggørelse (Faktiske)

10. april 2024

Studieafslutning (Faktiske)

25. august 2024

Datoer for studieregistrering

Først indsendt

8. maj 2026

Først indsendt, der opfyldte QC-kriterier

8. maj 2026

Først opslået (Faktiske)

14. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

14. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2024/5204

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Data contains sensitive information

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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