PhD Paulina Szyszka
Department of Sports Sciences, Faculty of Physical Education and Health, in Biała Podlaska, Józef Piłsudski Academy of Physical Education in Warsaw

Objective of the study was to determine the changes of maximum muscle torque of knee joint extensor muscles under static conditions in the training microcycle using different protocols of warm-up exercises. The study included 5 training units in the preparatory period. The test procedure included 2 measurements during one training unit. The first measurement was taken before the warm-up, the second after the end of the warm-up, and before starting the proper part of the training. During the performance of individual training units, specific warm-up protocols were applied to 15 weightlifters.
A statistically significant (p<0.05) increase in the torque of knee joint extensor muscles between the measurements taken before and after warm-up was observed in the second (II) (p=0.001), fourth (IV) (p=0.04) and fifth (V) (p=0.001) measurement day, when dynamic exercises were used in the protocol. Average values after the application of vertical jumps in place caused an average increase in value by 7.52%. The results of the conducted analyses confirm the validity of dynamic exercises often used in practice after a long waiting time for an approach during the competition in weightlifting. Carrying out such measurements may be a guide for the trainer to select the exercises during the programming of the competition warm-up.

Keywords: warm-up, exercises, strength, knee joint, weightlifting

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