Acute Effects of Randori and Yakusoku Geiko in Young Judokas
Comparison of the Acute Effects of Randori and Yakusoku Geiko on Visual-Motor Performance and Heart Rate in Young Judokas
This study will compare the immediate effects of two common judo practice methods, randori and yakusoku geiko, on visual-motor performance and heart rate in young male judokas. Randori is a free-practice form of judo that involves active resistance and unpredictable interaction with an opponent, whereas yakusoku geiko is a more controlled practice method in which techniques are performed with less resistance.
The study will use a randomized, counterbalanced crossover design. The same participants will complete three conditions on separate days: randori, yakusoku geiko, and a seated rest control condition. The order of these conditions will be randomized, and there will be at least 48 hours between sessions.
Before and immediately after each condition, visual-motor performance will be assessed using the King-Devick Test, a rapid number-naming task that measures visual scanning, attention, and eye movement-related performance. Heart rate will also be measured before and immediately after each condition using a Polar H10 chest strap.
Randori and yakusoku geiko will each be performed for 4 minutes after a standardized warm-up. During the control condition, participants will rest for 4 minutes without performing physical activity. The study will examine whether these different judo practice conditions produce different immediate changes in King-Devick Test completion time, error count, and heart rate.
Tutkimuksen yleiskatsaus
Tila
Tila
Ehdot
Ehdot
Interventio / Hoito
Interventio / Hoito
Opintotyyppi
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Ilmoittautuminen
Vaihe
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskeluyhteys
Opiskeluyhteys
- Nimi: Muhammed Sıddık Çemç, Dr.
- Puhelinnumero: +90 537 016 29 25
- Sähköposti: mscemc@gmail.com
Opiskelupaikat
-
-
Türkiye
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Istanbul, Türkiye, Turkki (Türkiye), 34342
- Boğaziçi University
-
Ottaa yhteyttä:
- Muhammed Sıddık Çemç, Dr.
- Puhelinnumero: +90 537 016 29 25
- Sähköposti: mscemc@gmail.com
-
Päätutkija:
- Muhammed Sıddık Çemç, Dr.
-
-
Osallistumiskriteerit
Kelpoisuusvaatimukset
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
Hyväksyy terveitä vapaaehtoisia
Kuvaus
Inclusion Criteria:
Male participants. Licensed judo athletes residing in Istanbul. Regular participation in judo training at least three days per week. Willingness to provide informed consent. Willingness to avoid high-intensity exercise during the 24 hours before each testing session.
Exclusion Criteria:
Any known history of disease. Regular medication use. Failure to meet the study inclusion criteria.
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Perustiede
- Jako: Satunnaistettu
- Inventiomalli: Crossover-tehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseiden lukumäärä
Aseet ja interventiot
Osallistujaryhmä / ArmOsallistujaryhmä / Arm |
Interventio / HoitoInterventio / Hoito |
|---|---|
|
Kokeellinen: Sequence 1: Randori → Yakusoku Geiko → Control
|
Participants will complete a 4-minute randori session following an approximately 15-minute standardized warm-up.
Randori will involve free judo practice with active resistance and unpredictable interaction between matched training partners.
Participants will be paired with consideration of weight category and belt level.
Participants will complete a 4-minute yakusoku geiko session following an approximately 15-minute standardized warm-up.
Yakusoku geiko will involve controlled and repetitive judo technique practice with little or no active resistance from the training partner.
Participants will be paired with consideration of weight category and belt level.
|
|
Kokeellinen: Sequence 2: Randori → Control → Yakusoku Geiko
|
Participants will complete a 4-minute randori session following an approximately 15-minute standardized warm-up.
Randori will involve free judo practice with active resistance and unpredictable interaction between matched training partners.
Participants will be paired with consideration of weight category and belt level.
Participants will complete a 4-minute yakusoku geiko session following an approximately 15-minute standardized warm-up.
Yakusoku geiko will involve controlled and repetitive judo technique practice with little or no active resistance from the training partner.
Participants will be paired with consideration of weight category and belt level.
|
|
Kokeellinen: Sequence 3: Yakusoku Geiko → Randori → Control
|
Participants will complete a 4-minute randori session following an approximately 15-minute standardized warm-up.
Randori will involve free judo practice with active resistance and unpredictable interaction between matched training partners.
Participants will be paired with consideration of weight category and belt level.
Participants will complete a 4-minute yakusoku geiko session following an approximately 15-minute standardized warm-up.
Yakusoku geiko will involve controlled and repetitive judo technique practice with little or no active resistance from the training partner.
Participants will be paired with consideration of weight category and belt level.
|
|
Kokeellinen: Sequence 4: Yakusoku Geiko → Control → Randori
|
Participants will complete a 4-minute randori session following an approximately 15-minute standardized warm-up.
Randori will involve free judo practice with active resistance and unpredictable interaction between matched training partners.
Participants will be paired with consideration of weight category and belt level.
Participants will complete a 4-minute yakusoku geiko session following an approximately 15-minute standardized warm-up.
Yakusoku geiko will involve controlled and repetitive judo technique practice with little or no active resistance from the training partner.
Participants will be paired with consideration of weight category and belt level.
|
|
Kokeellinen: Sequence 5: Control → Randori → Yakusoku Geiko
|
Participants will complete a 4-minute randori session following an approximately 15-minute standardized warm-up.
Randori will involve free judo practice with active resistance and unpredictable interaction between matched training partners.
Participants will be paired with consideration of weight category and belt level.
Participants will complete a 4-minute yakusoku geiko session following an approximately 15-minute standardized warm-up.
Yakusoku geiko will involve controlled and repetitive judo technique practice with little or no active resistance from the training partner.
Participants will be paired with consideration of weight category and belt level.
|
|
Kokeellinen: Sequence 6: Control → Yakusoku Geiko → Randori
|
Participants will complete a 4-minute randori session following an approximately 15-minute standardized warm-up.
Randori will involve free judo practice with active resistance and unpredictable interaction between matched training partners.
Participants will be paired with consideration of weight category and belt level.
Participants will complete a 4-minute yakusoku geiko session following an approximately 15-minute standardized warm-up.
Yakusoku geiko will involve controlled and repetitive judo technique practice with little or no active resistance from the training partner.
Participants will be paired with consideration of weight category and belt level.
|
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Aikaikkuna |
|---|---|
|
Change in King-Devick Test Completion Time
Aikaikkuna: Immediately before and immediately after each study condition (randori, yakusoku geiko, and control) during three separate testing sessions, with 48 hours to 7 days between sessions.
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Immediately before and immediately after each study condition (randori, yakusoku geiko, and control) during three separate testing sessions, with 48 hours to 7 days between sessions.
|
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Change in King-Devick Test Error Count
Aikaikkuna: Immediately before and immediately after each study condition (randori, yakusoku geiko, and control) during three separate testing sessions, with 48 hours to 7 days between sessions.
|
Immediately before and immediately after each study condition (randori, yakusoku geiko, and control) during three separate testing sessions, with 48 hours to 7 days between sessions.
|
Toissijaiset tulostoimenpiteet
Toissijaiset tulostoimenpiteet
Tulosmittaus |
Aikaikkuna |
|---|---|
|
Change in Heart Rate
Aikaikkuna: Immediately before and immediately after each study condition (randori, yakusoku geiko, and control) during three separate testing sessions.
|
Immediately before and immediately after each study condition (randori, yakusoku geiko, and control) during three separate testing sessions.
|
Yhteistyökumppanit ja tutkijat
Sponsori
Sponsori
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Arvioitu)
Opiskelun aloitus
Ensisijainen valmistuminen (Arvioitu)
Ensisijainen valmistuminen
Opintojen valmistuminen (Arvioitu)
Opintojen valmistuminen
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Ensimmäinen Lähetetty
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin päivitys julkaistu
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
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