An interventional study of Special Judo Fitness Test (SJFT) in Cognitive Performance, Inhibitory Control and Selective Attention, sponsored by Bogazici University. Not yet recruiting at 1 site in Turkey (Türkiye). Open to male participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-01.
Sponsored by Bogazici University · Not applicable, Interventional, and Other
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.
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.
Exclusion Criteria:
History of visual impairment. History of neurological disorders. History of psychiatric disorders. History of cardiovascular disease. Current medication use.
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)
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.
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.
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.
Time frame: 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.
Time frame: Approximately 1 minute before and 1 minute after the intervention
Plan to share: No — Individual participant data will not be shared because no formal data-sharing plan has been established for this study. Study findings will be reported in aggregate form in scientific publications and presentations.
No publications or documents are linked to this record.
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Bogazici University