Objective of the study was to test benefits of a new gender-specific training model for the 12-15 year old ski jumpers with the body composition tests and physical fitness tests. Methods and structure of the study. We sampled for the new model testing experiment the Class II-III qualified 12-15 year old ski jumpers (n=74, including 25 girls and 49 boys). Based on a pre-experimental test data, we produced the individual training cards with the physical fitness / body composition control recommendations. Physical fitness of the sample was tested by the speed and strength endurance rating bench jumping and forearm plank tests; jumping skills and speed-strength rating standing long jump and triple jump tests; static balancing and muscle control skills rating board balancing time test (with the frontal and sagittal test elements); movement coordination skills rating figure-of-eight and hurdles tests; and the flexibility rating front lean and ankle joint flexion tests. The body composition of the sample was rated by Inbody 720 and Esteck System tests. Results and conclusions. The girls outperformed the boys in three control exercises characterizing flexibility, static muscle strength and speed endurance; however, the boys significantly outperformed the girls in the speed-strength exercises (standing long jump and standing triple jump). We detected an increase in the amount of adipose tissue in the girls - 28.2%, which necessitated the use of increased aerobic loads, individual dietary recommendations. The muscle component of the body was significant higher in the young males (25.3%) as compared to the females (19.1%). The training process management model for ski jumpers proved its significance: the bio-impedance analysis made it possible to correct the individual seasonal diets so as to prevent unhealthy body fat losses in the boys group. The body mass indices and body adiposity indices were tested to fall to the standard level with the significant growth in the special physical fitness and competitive performance.
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