Olympic weightlifting is a power-based sport. The success of Olympic weightlifters depends on a plethora of different factors. Two of them are the training in preparation for the competition and the technical efficiency of the individual's lifts. Cluster sets are potentially applicable training methods if an individual wants to perform more technically correct lifts. Such sets are interesting as they allow for a higher number of repetitions in a set with lower reductions in maximal speed and power output. Better regeneration between individual lifts or repetitions potentially affects a more optimal performance from the point of view of vertical and horizontal displacements on the bar trajectory.
The primary purpose of this master's thesis was to research how four different training protocols affect the execution of snatch from a technical point of view through a case study of a successful and experienced Slovenian weightlifter. Since the subject within the research performed lifts with 80% 1RM, we also wanted to check the differences between the technical parameters of these lifts and the already established technical frameworks of maximum lifts. We also wanted to create an individualized model for dealing with the technical execution of the snatch, and we wanted to compare the data collection approach used in our work with the methods already used in the past and thus evaluate its effectiveness.
With the help of measurements and reviewing the existing literature, we found that the presented protocols have different effects on the snatch technical execution. The second protocol, which included a series with interruptions and a 3-minute break between series with two repetitions, proved to be the most suitable for optimal technical performance. The fourth protocol, which also included intermittent sets and a 3-minute rest between sets of four repetitions, was also shown to be potentially applicable with some adaptations. Based on the measurements of our lifter, we conclude that, from a technical point of view, differences are present at 80% 1RM compared to maximal attempts and should be studied more closely in the future. We also believe that for a correct analysis of the technical parameters of lifts, it is crucial to interpret only this to the individual's physical characteristics and anthropometry. Finally, in the case of detailed analyses, due to the quality of data capture and recording, it seems advisable to consider the more frequent use of dedicated 3D cameras. Due to the constant and reliable tracking of the markers on the pole and possibly the lifter itself, it is optimal to place them from all sides of the lifter and not just from the back, as was the case in our case study.
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