Priming Using Contrast Training Exercise
Effects of Morning Contrast Training Exercise on the Afternoon Priming of Judoka's Athletic and Sport-specific Performance
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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Silesian Voivodeship
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Katowice, Silesian Voivodeship, Polen, 40-065
- Academy of Physical Education in Katowice
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- age between 18 and 22 years;
- competitive male or female judo athlete;
- minimum of 3 years of experience in structured judo training;
- previous experience with and technical proficiency in resistance and ballistic training exercises;
- ability to correctly perform the back squat, bench press, countermovement jump, and wall ball slam;
- technical proficiency in performing the Ippon Seoi-Nage throwing technique; previous experience with the Special Judo Fitness Test;
- absence of musculoskeletal injuries or medical conditions that would restrict participation in maximal physical exercise;
- ability to complete both experimental conditions and all required performance assessments;
- provision of written informed consent before participation.
Exclusion Criteria:
- less than 3 years of structured judo training experience;
- insufficient technical proficiency in the back squat, bench press, countermovement jump, or wall ball slam;
- inability to correctly perform the Ippon Seoi-Nage technique;
- no previous experience with the Special Judo Fitness Test;
- current musculoskeletal pain or injury that could affect resistance exercise, jumping, handgrip assessment, or judo-specific performance;
- presence of a medical condition that could restrict maximal physical effort or - make participation in the intervention unsafe;
- inability to complete either experimental condition or the required testing procedures
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Zufällig
- Interventionsmodell: Crossover-Aufgabe
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Experimental: Complex-Contrast Training Priming Condition
Participants performed a morning complex-contrast training (CCT) session designed to induce a delayed priming effect on afternoon judo-specific and neuromuscular performance. The session consisted of lower- and upper-body contrast exercise pairs combining heavy resistance exercises with biomechanically related ballistic exercises. Following the intervention, participants completed a 6-hour passive recovery period before the afternoon performance assessment. |
At approximately 9:00 AM, participants completed a standardized warm-up consisting of a 10-minute self-paced jog followed by dynamic stretching. Baseline countermovement jump and maximum isometric handgrip strength measurements were subsequently performed. The CCT intervention consisted of: 3 lower-body contrast sets, with 6 repetitions of the back squat paired with 6 maximal countermovement jumps; 3 upper-body contrast sets, with 6 repetitions of the bench press paired with 6 maximal wall ball slams. After completing the morning session, participants underwent a 6-hour passive recovery period. At approximately 3:00 PM, they repeated the standardized warm-up and completed the countermovement jump, maximum isometric handgrip strength, and Special Judo Fitness Test assessments. |
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Aktiver Komparator: Time-Matched Walking Control Condition
Participants completed the same standardized morning warm-up and baseline measurements as in the experimental condition.
Following the baseline measurements, participants walked for a period corresponding to the duration of the complex-contrast training protocol.
No resistance or ballistic exercises were performed.
After the walking period, participants underwent a 6-hour recovery interval before completing the afternoon performance assessments.
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At approximately 9:00 AM, participants completed a standardized warm-up consisting of a 10-minute self-paced jog followed by dynamic stretching. Baseline countermovement jump and maximum isometric handgrip strength measurements were then performed. Following the baseline measurements, participants walked for the duration required to complete the CCT protocol in the experimental condition. After the 6-hour recovery interval, participants returned at approximately 3:00 PM, repeated the standardized warm-up, and completed the countermovement jump, maximum isometric handgrip strength, and Special Judo Fitness Test assessments. |
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Special Judo Fitness Test Index
Zeitfenster: Approximately 6 hours post-intervention
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Judo-specific performance efficiency assessed using the Special Judo Fitness Test (SJFT). The test consisted of three work periods: one 15-second period followed by two 30-second periods, separated by 10-second recovery intervals. During each period, the participant moved between two partners positioned 3 meters apart and performed the Ippon Seoi-Nage throwing technique as many times as possible. Heart rate was measured immediately after the test and 1 minute after test completion using a chest strap-based heart rate monitor. The SJFT index was calculated using the total number of completed throws and the heart rate values recorded immediately and 1 minute after the test. A lower SJFT index represents better judo-specific performance efficiency. |
Approximately 6 hours post-intervention
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Total Number of Throws During the Special Judo Fitness Test
Zeitfenster: Approximately 6 hours post-intervention
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The total number of successfully completed Ippon Seoi-Nage throws during all three periods of the Special Judo Fitness Test.
The result was calculated as the sum of throws completed during the 15-second period and the two 30-second periods.
A higher number of throws indicates better judo-specific performance.
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Approximately 6 hours post-intervention
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Number of Throws During Individual Special Judo Fitness Test Periods
Zeitfenster: Approximately 6 hours post-intervention
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The number of successfully completed Ippon Seoi-Nage throws was recorded separately during each of the three SJFT periods: Set 1: 15 seconds; Set 2: 30 seconds; Set 3: 30 seconds. The work periods were separated by 10-second recovery intervals. Results were reported as the number of completed throws in each set. |
Approximately 6 hours post-intervention
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Left-Hand Maximum Isometric Handgrip Strength
Zeitfenster: Baseline and approximately 6 hours post-intervention
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Maximum isometric handgrip strength of the left hand measured using a handheld Jamar dynamometer (Lafayette, California, USA). Participants were seated upright with their feet flat on the floor, the upper arm positioned close to the torso, the elbow flexed to 90°, and the wrist maintained in a neutral position. During each trial, participants exerted maximal force against the dynamometer for 5 seconds. Attempts were alternated between the left and right hands, with a 1-minute recovery interval between trials. Handgrip strength was reported in kilograms (kg). |
Baseline and approximately 6 hours post-intervention
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Right-Hand Maximum Isometric Handgrip Strength
Zeitfenster: Baseline and approximately 6 hours post-intervention
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Maximum isometric handgrip strength of the right hand measured using a handheld Jamar dynamometer (Lafayette, California, USA). Participants were seated upright with their feet flat on the floor, the upper arm positioned close to the torso, the elbow flexed to 90°, and the wrist maintained in a neutral position. During each trial, participants exerted maximal force against the dynamometer for 5 seconds. Attempts were alternated between the left and right hands, with a 1-minute recovery interval between trials. Handgrip strength was reported in kilograms (kg). |
Baseline and approximately 6 hours post-intervention
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Countermovement Jump Height
Zeitfenster: Baseline and approximately 6 hours post-intervention
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Vertical jump height measured during a countermovement jump using a portable force platform sampling at 2000 Hz. Participants performed three maximal-effort countermovement jumps with their hands positioned on their hips and were allowed to use a self-selected countermovement depth. A 1-minute recovery interval was provided between trials. Jump height was reported in centimeters (cm). |
Baseline and approximately 6 hours post-intervention
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Heart Rate Immediately After the Special Judo Fitness Test
Zeitfenster: Immediately after the Special Judo Fitness Test performed approximately 6 hours post-intervention
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Heart rate measured immediately following completion of the Special Judo Fitness Test using a chest strap-based heart rate monitor.
Heart rate was reported in beats per minute (bpm).
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Immediately after the Special Judo Fitness Test performed approximately 6 hours post-intervention
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Heart Rate One Minute After the Special Judo Fitness Test
Zeitfenster: One minute after the Special Judo Fitness Test performed approximately 6 hours post-intervention
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Heart rate measured 1 minute following completion of the Special Judo Fitness Test using a chest strap-based heart rate monitor.
Heart rate was reported in beats per minute (bpm).
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One minute after the Special Judo Fitness Test performed approximately 6 hours post-intervention
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Jakub Jarosz, PhD, Academy of Physical Education in Katowice
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- Pereira LA, Zmijewski P, Golas A, Kotula K, McGuigan MR, Loturco I. Priming Exercises and Their Potential Impact on Speed and Power Performance: A Narrative Review. J Hum Kinet. 2025 Jun 25;98:153-168. doi: 10.5114/jhk/204371. eCollection 2025 Jul.
- Thapa RK, Weldon A, Freitas TT, Boullosa D, Afonso J, Granacher U, Ramirez-Campillo R. What do we Know about Complex-Contrast Training? A Systematic Scoping Review. Sports Med Open. 2024 Sep 27;10(1):104. doi: 10.1186/s40798-024-00771-z.
- Gepfert M, Terbalyan A, Helbin J, Thapa RK, Stastny P, Krzysztofik M, Jarosz J. Priming magnitude and retention in highly trained male volleyball players are unaffected by exercise type, muscle temperature, or viscoelasticity. BMC Sports Sci Med Rehabil. 2026 Apr 25;18(1):270. doi: 10.1186/s13102-026-01705-w.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- RRU/SPES/IRB/2025-26/16
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