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Effect of Additional Load on Power Output during Drop Jump Training

100%

Makaruk H., Sacewicz T., Czaplicki A., Sadowski J.

Journal of Human Kinetics

2010

vol. 26

31-37

Plyometrics can be an effective way of improving power performance in many sports. The purpose of this study was to examine the effects of additional loading on power during drop jump training. Forty-two untrained physical education students with plyometric training background participated in a six-week training 3 times a week. Subjects were randomized to one of three training groups: without (FREE) and with a weight vest (VEST; 5% body weight), and a control group (CON). Pretraining and post-training measures of concentric peak power (PP), force (Fpp) and velocity (υPP) at peak power and, in addition, time between eccentric and concentric peak power (tPPEC) were analyzed in a countermovement jump (CMJ) and a drop jump (DJ) from a height of 0.3 m. The FREE and VEST groups considerably improved PP in CMJ (p < 0.05), but υPP significantly increased (p < 0.05) and tPPEC significantly decreased (p < 0.05) only in the FREE group. The enhancement of PP and υPP was only demonstrated by the FREE group in DJ. The FREE group significantly decreased (p < 0.05) and the VEST group significantly increased (p < 0.05) tPPEC in DJ. It can be concluded that using additional load during drop jump training does not produce superior gains in power output when compared to a traditional drop jump training program.

Effect of power on agility, linear speed and change of direction deficit in female soccer players

72%

Fischerova P., Krosta R., Gołaś A., Terbalyan A., Nitychoruk M., Maszczyk A.

Physical Activity Review

2021

vol. 1

issue 9

109-116

Introduction: The aim of the study was to examine relationships between power of the lower limb and agility, speed, and change of direction (COD) deficit in professional female soccer players. Material and methods: Thirty-three elite Polish Extraliga league soccer players (aged 22 ±5 years; body height 166 ± 4 cm; body weight 58 ± 8 kg) performed the following fitness tests: lower limb muscle power (Leg Press, Half Squat, Counter Movement Jump), straight linear speed (SLS 20 m), and COD speed ( Zig-Zag test, COD deficit). Using the median value as a reference, the players were subdivided into two groups (n=17; n=16) according to their LP, HS 60% 1RM, CMJ (High values below median = stronger group and Low = weaker group ). Results: The COD deficit was calculated as the difference between the 20m speed and the Zig-Zag test. The stronger group was better than the weaker group in SLS 20m (p<0.05; ES=1.23; 0.83; 0.93), but in the Zig-Zag agility test, the difference in the results was not statistically significant (p>0.05; ES=0.48; 0.34; 0.34) and this affected the COD deficit, which was higher (p<0.05; ES=0.9; 0.73; 0.72). The most important finding was that the stronger group had a higher COD deficit and its improvement (reduction) occurs only if the results of the agility test are improved (through agility training) [Ydeficit All groups=0.10+0.87* 20m - 0.83* Zig-Zag]. Increasing power (HS, LP) lead to the improvement in SLS p<0.05, not to COD abilities. Conclusion: This can be useful for coaches during agility training and to improve COD deficit in soccer players and women in general.

Selected anaerobic capacity parameters regard to paracanoe functional classification

72%

Starczewski M., Molik B.

Advances in Rehabilitation

2014

vol. 28

issue 1

31-35

Wstęp: Parakajakarstwo jest dyscypliną paraolimpijską, w której zawodnicy rywalizują na dystansie 200m w trzech klasach funkcjonalnych. Celem pracy było porównanie parametrów wydolności beztlenowej zawodników różnych klas. Materiał i metody: W badaniach wzięło udział 14 zawodników rywalizujących w klasach A i LTA. W celu określenia wybranych parametrów wydolności beztlenowej (mocy maksymalnej, mocy maksymalnej względnej, wskaźnika zmęczenia, czasu osiągnięcia mocy maksymalnej) przeprowadzono 30s test Wingate na ergometrze ręcznym. Wyniki: W przeprowadzonych badaniach wykazano, że istnieją różnice w wydolności beztlenowej pomiędzy zawodnikami różnych klas w parakajakarstwie. Wnioski: Istnieje zależność pomiędzy wybranymi parametrami wydolności anaerobowej i klasyfikacją funkcjonalną.

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1 Gołaś A.

1 Krosta R.

1 Makaruk H.

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1 Nitychoruk M.

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1 Sadowski J.

1 Starczewski M.

1 Terbalyan A.

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Effect of Additional Load on Power Output during Drop Jump Training

Effect of power on agility, linear speed and change of direction deficit in female soccer players

Selected anaerobic capacity parameters regard to paracanoe functional classification