engleski

The Effects Of Fatigue On The Biomechanical Parameters Of Throwing In Judokas Of Different Ages: A Case Study.

The goal of this paper is to determine the differences in biomechanical parameters during the execution of ippon-seoi-nage and harai-goshi throwing techniques before and after exhaustion in judokas of different ages and skill levels by way of a new technology – the biomechanical “X-sens” suit. With the acquired data it may be possible to tailor training to improve specific motor skills and the technical knowlege of the athlete. The research was undertaken on two judokas: junior – 19 year old black belt, Croatian Junior Champion and 12-year practioner of judo – and a younger cadet– 15 years old and 8-year practioner of judo.Wearing the X-sens suit, the subjects executed three repetitions of both the ippon-seoi-nage and harai-goshi throws and did so again in a state of exhaustion via the test for endurance: “throw + two push ups in 90 seconds” (T2P90S). The suit contained 17 sensors and sent the data over a wifi signal to a computer for real-time processing and analysis in the software program MVN studio. The results are as expected and indicate that differences exist in the effect of fatigue on both judokas. The older subject shows better results in almost all variables. It is possibe to conclude that the older subject's degree of enduranceand strength – as assessed via the test for specific endurance and explosive strength – during the execution of the throws is at an enviable level compared to the younger subject. Further research using this technology with a greater number of test subjects will provideeven more concrete and better results from which we will be able to obtain data necessary for higher-quality tailoring of training programs. This will ultimately result in a decrease of observed deficiencies in physical and technical preparation at the highest level, which is the greatest challenge for trainers.

judo, endurace, technical efficiency

nije evidentirano