Priming Using Contrast Training Exercise

This study investigated the effects of a morning complex-contrast training session on afternoon sport-specific and physical performance in competitive judokas. The study focused on identifying whether a stimulus targeting both force and velocity components of the force-velocity curve could induce a "delayed potentiation" effect 6 hours later and whether these responses differed by sex.

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