Clinical Research Directory

Multi-Ingredient Supplementation in Professional Football Players

This randomized double-blind placebo-controlled trial will investigate the effects of multi-ingredient supplementation containing taurine, caffeine, and phosphatidylserine on physical performance, cognitive function, cognitive fatigue responses, recovery, sleep quality, and autonomic nervous system activity in elite male soccer players. Participants will complete a 14-day supplementation protocol and undergo football-specific performance, reaction-time, cognitive-fatigue, recovery, and sleep-related assessments before and after the intervention. The study aims to determine whether phosphatidylserine dose influences physical, cognitive, fatigue-related, and recovery-related outcomes when combined with taurine and caffeine.

Effects of Carbon Fiber Insoles on CMJ and Sprint Performance

This study evaluates the effects of VKTRY carbon fiber insoles on vertical jump and sprint performance in moderately active men. Participants will perform tests with and without insoles, assessing both objective performance and subjective perception using a Likert-type scale.

Effects of L-Tyrosine and Caffeine on Performance in Elite Boxers

Participants will complete five sessions, including one familiarization and baseline session and four experimental conditions (placebo, L-tyrosine, caffeine, and combined supplementation). The baseline session will include resting measurements. The experimental conditions will be performed in a randomized, counterbalanced crossover design with a washout period of at least 72 hours between sessions.

Unstable Core Training in Air Pistol Athletes

This randomized controlled trial aims to compare the effects of unstable versus stable trunk core strength training on shooting performance and postural stability in elite 10 m air pistol athletes. Twenty national-level athletes will be randomly assigned to either an unstable training group or a stable training group for an 8-week intervention. Both groups will perform identical core exercises with matched intensity and volume, differing only in the stability of the training surface. Shooting performance and gun-holding stability will be assessed using a SCATT system, and postural control will be evaluated using a plantar pressure system. The results of this study may help determine whether unstable core training provides additional benefits for improving shooting accuracy and stability in elite athletes.

Inspiratory Muscle Warm-Up in Combat Athletes

The aim of this study is to investigate the effects of inspiratory muscle warm-up (IMW) on technical performance and physiological responses in combat athletes. A total of 20 volunteer athletes (10 males, 10 females), aged 15-22 years, registered with the Turkish Kickboxing and Muay Thai Federation, with at least two years of licensed sports experience and medal achievements at the national or international level, will be included in the study. The study will be conducted using a placebo-controlled, randomized, double-blind, crossover experimental design, in which participants will complete the control (general warm-up), placebo (15% MIP), and IMW (40% MIP) conditions in a random order. In each session, before and after the warm-up, pulmonary function tests (FVC, FEV1, FEV1/FVC, PEF), respiratory muscle strength (MIP, MEP), heart rate, perceived exertion, and dyspnea levels will be assessed. In addition, athletes will perform the Kickboxing Fitness Test (KFT), and the same measurements will be repeated during the rest intervals of the test and immediately after its completion. The IMW protocol will be performed using a POWERbreathe device at 40% of MIP, consisting of 2 sets of 30 breaths. Furthermore, maximal oxygen uptake (VO₂max) tests will be conducted to evaluate the athletes' general physiological capacity. This study is expected to provide original data for the field of sports sciences by demonstrating the potential contributions of inspiratory muscle warm-up to the improvement of technical skills and physiological capacity in combat athletes, and to generate practical scientific recommendations for coaches and athletes.

Plyometrics vs PAPE Training in Football: Effects on Agility, Explosive Power and Speed

The goal of this clinical trial is to compare the effects of 8 week plyometric training and post-activation performance enhancement (PAPE) training on explosive power, agility, acceleration and sprint speed, muscle strength and flexibility in healthy male semi-professional football players aged 18-35. The main questions it aims to answer are: Does PAPE training have effects on performance metrics of football players when planned and applied long-term (8 weeks)? Does long term PAPE training improve agility, acceleration and speed, flexibility, vertical jump height, and muscle strength more effectively than Plyometric training? Is there a significant difference in performance gains between PAPE and plyometric training compared to a control group receiving only routine football training? Researchers will compare a plyometric training group, a PAPE training group, and a control group to determine which method most effectively enhances football-specific performance outcomes. Participants will: * Be randomly assigned to one of three groups (Plyometric, PAPE, or Control) * Continue their routine football training as usual * Receive additional training sessions applied immediately after warm-up and before continuing regular team training alongside the Control group (for PAPE and Plyometric group) * Undergo an 8-week training program (3 times per week for Plyometric and PAPE groups) Assessments will be conducted at baseline, week 4, and week 8, including: * Vertical Jump Test (explosive power) * 30-Meter Sprint Test, including 10-meter acceleration recording * Illinois Agility Test * Isometric strength measurements of quadriceps, hamstrings, and gastrocnemius using a handheld dynamometer * Sit and Reach Test and Modified Thomas Test (flexibility) In addition, all participants will complete a sociodemographic and lifestyle assessment form capturing: Age, height, weight, BMI Football experience and playing position Education level, employment status Sleep duration, training frequency, and training intensity Smoking and alcohol use status.

Effectiveness of a Judo-specific Injury Prevention Programme on Performance in Judo Athletes

Judo is a popular international combat sport with an estimated 20 million active participants world-wide and participation in judo entails a substantial risk of injury in both elite and recreational judo. It is known that judo involves a significantly higher risk of sports per activity compared with another combat sports such as wrestling, karate, taekwondo an deven popular team sports such as football, basketball and volleyball. Therefore, preventing injuries in judo is so important and various interventions can use in this regard. These include; taping, warm-up and cool-down programs, proper technique trainings and exercise programs. Injury prevention programmes in other sports have been proven effective in reducing injury rates for elite and recreational athletes. In judo, research on exercise-based prevention is limited to the description of injury prevention programs, but the effectiveness of these programs has never been evaluated. The aim of this study is to investigate the effects of the judo-specific ''IPPON'' warm-up programs for injury prevention of judokas on performance parameters and incidence of injuries among professional judo athletes. In this study, the investigators research the Judo-Specific Special Conditioning Test and the Isometric/Dynamic Judogi Grip Strength Test will be evaluated for performance parameters. In addition, the Upper and Lower Extremity Y Balance Test will be evaluated for balance and the Upper Extremity Internal/External Rotation Strength Test and the Lower Extremity Hamstring/Quadriceps Strength Test will be evaluated for muscle strength assessment. The Turkish translation of the Oslo Trauma Research Center Overuse Questionnaire (OSTRC-O) will be used to monitor the incidence of injuries among professional judo athletes.

Stroboscopic Vision Training in Softball

Enhanced sports performance, in our current world, is being pushed at the professional level and down to school-age children as well. Money is being spent on lessons and equipment to enhance performance. One new method to enhance performance is stroboscopic vision goggles. The glasses lenses flicker removing visual information for a brief moment. The claim is that they train connections between the eyes, brain, and body. We want to see if this product truly does enhance visual performance during a softball season for high school girls.