Introduction. According to numerous authors [1, 3, 5 et al.], management of the training process and forecasting of competitive success become possible due to focusing on those aspects of athletic fitness that have a statistically significant positive correlation with the competitive success rate, i.e. act as critical factors in achieving high sports results. These indicators are deemed as model characteristics of an "ideal" weightlifter. V.G. Konestyapin [2] emphasizes that it is important to consider the proportionality in the level of development of basic physical qualities in the formation of model characteristics. The principle of proportionality in the level of development of fitness components suggests that the physical qualities that negatively correlate with the competitive success rate should be singled out as model characteristics as well. Without that requirement, model characteristics of weightlifters will not have a clear structure and will contain a list of unreasonable demands only. The questionnaire survey of the highly-skilled weightlifters and trainers [4, p. 68] revealed that the most significant physical qualities in kettlebell lifting are strength endurance (100%), speed-strength qualities (40%), coordination abilities, and flexibility (22.8% each). Strength (11.4%) and speed qualities (2.8%) are less significant for achieving high competitive success rates in kettlebell lifting. To date, the scientific and methodological literature does not present any scientifically substantiated model characteristics that would determine the necessary level of development of the quadriceps muscle of thigh, calf muscles, triceps muscle of the arm, flexors of the arm, and extensors of the body of the weightlifters. Also, there are no statistically significant indices of coordination abilities, speed-strength qualities, and overall endurance, and consideration of the weightlifters` long-term sports training stages as model characteristics, necessary for determining specific objectives of the training process. This causes certain difficulties in the planning and organization of the training process for weightlifters. The resolution of this conflict is relevant at the present stage of development of the theory and methodology of kettlebell lifting, and is of both scientific and practical interest. Objective of the study was to analyze competitive success rates versus physical development and physical fitness indices of 11-17 year-old weightlifters in kettlebell sport. Methods and structure of the study. The study involved anthropometry, dynamometry, spirometry, pedagogical testing, and methods of mathematical statistics. Sampled for the study were 98 male weightlifters of the following age groups: 10-11 year-old (n=24); 12-13 year-old (n=17); 14-15 year-old (n=32); and 16-17 year-old (n=25) groups. The subjects were tested for physical development (body mass, body length, shoulder length, wrist length, pelvis width, vital capacity, wrist dynamometry, deadlift dynamometry), physical development indices (Kettle index, shoulder, wrist, pelvis indices, birth-death ratio, wrist and trunk strength indices) and physical fitness (speed-strength, strength, strength endurance, movement coordination, overall endurance and flexibility); versus the competitive success rates in the republican classical combined tournaments. A linear correlation method was used to rate the correlation between the competitive success, physical development and physical fitness rates. Results and discussion. The results of the analysis of correlation between physical development (PhD), physical fitness and competitive success rates are presented in Tables 1 and 2, respectively.
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