Effectiveness of a Judo-specific Injury Prevention Programme on Performance in Judo Athletes
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age13+
SponsorHacettepe University
About this trial
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.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
age should be more than 13 years
the asymptomatic judokas with no history of major injury or surgery in last 6 months,
having experience in at least 3 years competitive judo,
actively participating in competitive judo at least 1 year,
Disqualifiers
competing in paralympic sports,
if they had any major injuries or surgeries in last 6 months,
if they had any systemic, neurological or rheumatological diseases,
being pre-pubertal stage (Tanner I) according to Tanner Scale,
Trial design
Design model
Crossover
Treatments tested in this trial
IPPON warm-up programme
Other interventionThe IPPON intervention is an injury prevention programme designed specifically to reduce injuries in judo athletes. The trainer-supervised IPPON intervention mainly focuses on preventing musculoskeletal injuries of the shoulder, knee and ankle. The IPPON intervention consists of 36 exercises divided into (1) flexibility and agility, (2) balance and coordination and (3) strength and stability. Each category consisted of 12 exercises with 3 levels of difficulty. Athletes performed 4 exercises per category and thus 12 exercises at the start of the training at least two times per week.
Treatment groups
40 Participants
are divided into 2 treatment groupsGroup A: Intervention Group - IPPON GroupExperimental treatment 1 intervention
Group B: Control GroupNo intervention 0 interventions
Trial outcomes
Primary outcomes
1
Specific Judo Fitness Test (SJFT)
The SJFT formula is based ona total of throws (TT) made in three sets (1-15 s, 2-30 s, 3-30 s) separated by a 10 s break and heart rate (HR) collected immediately after the test and after 1 min with the inversely related index as the primary outcome \[6\]. During each period the athlete (tori) been evaluated throws two partners (uke A and B; far from each by 6 m) as many time as possible using the ippon-seoi-nage technique. Both uke A and B should have a similar height and weight from the tori. Just after and one minute after the test heart rate is measured.
Time frame
8 weeks2
Isometric Judogi Grip Strength Test
Isometric judogi chin-up: the athletes were asked to keep their elbows flexed with their chin above the hands for as long as possible and holding time was clocked. The test was interrupted as soon as athletes were unable to maintain the initial isometric position. In this test, athletes were encouraged to maintain the position for as long as possible.
Time frame
8 weeks3
Dynamic Judogi Grip Strength Test
Dynamic judogi chin-up: the athletes were asked to stretch their elbows completely and then flex them until the chin was above the bar and repetitions of the complete exercise were counted. Only repetitions which were carried out completely were counted, and the test was interrupted as soon as athletes were no longer able to carry out the proposed exercise completely and/or gave up voluntarily. In this test, athletes were encouraged to carry out as many dynamic repetitions as possible.
Time frame
8 weeks4
Upper Extremity Y Balance Test (UQ-YBT)
UQ-YBT: All participants will be provided written instructions and then observed a demonstration performed by one of the investigators. In their socks or barefoot, the participants then assumed a pushup position with feet no greater than shoulder width apart. While maintaining the pushup position, the participant used his/her free hand to maximally reach, slowly and under control, in each of three directions Medial, Inferolateral, and Superolateral in a sequential order without the free hand touching down.
Time frame
8 weeksSecondary outcomes
1
Oslo Trauma Research Center Overuse Questionnaire (OSTRC-O)
The OSTRC questionnaire is about overuse injury and health problems. These questionnaires are tools for injury and illness registration with four essential questions used to assess the severity. Scores in each symptom range from 0 to 100. The range of values in each question is from 0 to 25, with 0 representing no problem and 25 representing the maximum problem level in each question. Therefore, questions 1 and 4 are scored 0-8-17-25, and questions 2 and 3 are scored 0-6-13-19-25.
Time frame
16 weeksSponsors and contacts
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Source ClinicalTrials.gov
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