Criteria for an effective kettle bell clean and jerk

Aim. The purpose of the study is to develop criteria for an effective kettlebell clean and jerk. Materials and methods. The study involved males aged 18-22 engaged in kettlebell lifting (n = 11, from 1st rank to the Master of Sport of Russia). The athletes performed the kettlebell clean and jerk in different modes. Exercise duration did not exceed 2 minutes. During the exercise, the ground reaction force was recorded. Results. During multiple performances of the exercise, ground reaction force did not reach the maximum possible values. Highly skilled athletes apply as much effort as needed for the efficient performance of the exercise. With performance enhancement, an increase in FGRmax occurs. The use of FGRmax data in training planning will allow for identification of the means and methods aimed at improving this parameter. Half-squat has a great impact on FGRmax. Its effectiveness can be estimated by the difference in FGRmax values when lifting kettlebells with and without the half-squat position. The greater the difference, the greater the effectiveness. Minimum FGRmin values characterize the lifting method. The speed-power method is characterized by FGRmin ranging from 100 to 300 N. The power method is characterized by a higher FGRmin. When FGRmin = 0, a flight phase appears, which reduces the effectiveness of the exercise. When the kettlebell reaches the chest in the squat position, the effectiveness is measured as FGRmax. Reduced values of FGRmax in the squat phase will be indicative of decreased load on the musculoskeletal system and increased effectiveness of kettlebell chest contact. Conclusion. The criteria of an effective clean and jerk exercise will allow for substantiating new approaches to the training of kettlebell lifters.