SJFT Performance, Inhibitory Control, and Attention in Young Judokas

NCT07798635 | Not Yet Recruiting

• 1 other identifier: E-84391427-050.04-297820
• Study Type: interventional
• Target: 120
• Locations: 1 country
• Sites: 1

Brief Summary

This study will examine the relationship between judo-specific physical fitness and cognitive performance in young male judo athletes and will evaluate the immediate effects of the Special Judo Fitness Test (SJFT) on attention and inhibitory control. Licensed male judo athletes who train regularly at least three days per week will be compared with male participants who do not actively participate in sports. Judo athletes will complete a standardized warm-up followed by the SJFT, a judo-specific high-intensity fitness test involving repeated throws performed over three short exercise periods separated by brief rest intervals. Heart rate will be measured immediately after the SJFT and again one minute later. Cognitive performance will be assessed using a computerized Flanker Task, which will measure reaction time and response accuracy while participants respond to relevant visual information and ignore distracting information. Judo athletes will complete the Flanker Task approximately one minute before and one minute after the SJFT. Participants in the control group will complete the same cognitive assessment twice over a similar time interval without performing the physical exercise. The study will aim to determine whether judo-specific physical fitness and judo experience are associated with attention and inhibitory control and whether a single high-intensity judo-specific exercise session will produce an immediate change in cognitive performance.

Conditions

Cognitive Performance; Inhibitory Control; Selective Attention; Physical Fitness

Keywords

judo; anaerobic test; inhibitory control; selective attention

Outcome Measures

Primary Outcomes (2)

• Change in Flanker Task Correct Responses

  Response accuracy will be assessed using a computerized Flanker Task. The number of correct responses will be recorded separately for congruent and incongruent trials. Higher numbers of correct responses indicate greater response accuracy.

  Approximately 1 minute before and 1 minute after the intervention

• Change in Flanker Task Reaction Time

  Reaction time will be assessed for congruent and incongruent trials using a computerized Flanker Task. Lower reaction times indicate faster cognitive responses.

  Approximately 1 minute before and 1 minute after the intervention

Study Arms (2)

Judo Group

EXPERIMENTAL

Participants in the judo group will complete a standardized warm-up followed by the Special Judo Fitness Test (SJFT). Cognitive performance will be assessed using the Flanker Task approximately one minute before and one minute after the SJFT.

Behavioral: Special Judo Fitness Test (SJFT)

Control Group

NO INTERVENTION

Participants in the control group will not perform the SJFT or any other exercise intervention. They will complete the Flanker Task twice over a similar time interval while remaining at rest.

Interventions

Special Judo Fitness Test (SJFT) BEHAVIORAL

The Special Judo Fitness Test is a judo-specific high-intensity exercise test consisting of three exercise periods: 15 seconds, 30 seconds, and 30 seconds, with 10-second rest intervals between periods. During the test, the participant will perform as many ippon-seoi-nage throws as possible using two partners positioned six meters apart.

Judo Group

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Male participants residing in Istanbul. For the judo group: licensed judo athletes who regularly participate in judo training at least three days per week.
• For the control group: individuals who are not actively involved in any sports branch.
• Right-handed participants, as determined using the Edinburgh Handedness Inventory.
• Participants who provide informed consent to participate in the study.

You may not qualify if:

• History of visual impairment. History of neurological disorders. History of psychiatric disorders. History of cardiovascular disease. Current medication use.

Sponsors & Collaborators

• Bogazici University: lead

Study Sites (1)

Boğaziçi University

Istanbul, Türkiye, 34342, Turkey (Türkiye)

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: August 28, 2026
• First Posted: September 1, 2026
• Study Start: September 15, 2026
• Primary Completion (Estimated): October 15, 2026
• Study Completion (Estimated): October 30, 2026
• Last Updated: September 1, 2026

Record last verified: 2026-08

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)