Modeling record scores in the snatch and its variations in the long-term training of young weightlifters


Autoři: Adam Czaplicki aff001;  Paulina Szyszka aff002;  Jarosław Sacharuk aff002;  Janusz Jaszczuk aff001
Působiště autorů: Department of Natural Sciences, Faculty of Physical Education and Health, Jozef Pilsudski University of Physical Education, Warsaw, Poland aff001;  Department of Sport Sciences, Faculty of Physical Education and Health, Jozef Pilsudski University of Physical Education, Warsaw, Poland aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
prolekare.web.journal.doi_sk: 10.1371/journal.pone.0225891

Souhrn

The primary aim of the current study was to determine the time curves of changes in the record scores in the snatch and its variations during a two-year training cycle in young weightlifters. This study also aimed at assessing the ratios between these scores and at predicting the snatch record scores at the end of the subsequent annual training macrocycle. The final purpose was to compare the record scores with the isometric peak torque values of the trunk and knee extensors. The study involved 16 weightlifters who were tested seven times at three-month intervals. The overall mean ratios of the record scores in the hang snatch to those in the snatch and the record scores in the hang power snatch to those in the snatch were approximately constant and amounted to 0.95 and 0.79, respectively. The overall mean ratio between the scores in the power snatch to those in the snatch was approximately 0.88. Statistically significant differences (p < 0.05) between the individual time trajectories of record scores in the snatch and its derivatives were identified in two consecutive annual training macrocycles. The error in predicting record results at the end of the following annual training macrocycle was 6.7 ± 4.7% or 8.1 ± 3.4% depending on the way the measurement data were modeled. The results of the study also indicate that the measurements of the isometric peak torque of the trunk extensors performed in laboratory conditions can be useful in diagnosing the strength capacity of young weightlifters.

Klíčová slova:

Ankle joints – Hip – Knee joints – Knees – Mathematical functions – Sports – Strength training – Torque


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2019 Číslo 12