Ryszard Strzelczyk

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The aim of the study was a detailed analysis of the sprinting activity of professional soccer players. The study involved 147 players who played in 10 matches of the 2008-09 and 2010-11 UEFA Europa League seasons. The number of performed sprints and total sprint distances covered by the players were examined using collected statistical material. Two types(More)
The aim of this study was to identify trends of changes in the structure and levels of motor effects among young women basketball players in 2006-2013. These changes were examined in the context of comprehensive development of functional, fitness-related, and technical fundamentals with respect to requirements of specific training adopted as typical for(More)
Mercapturic acids (MA) are the final step in the biotransformation of compounds deriving from conjugation of electrophiles to glutathione (GSH). GSH is an important endogenous tripeptide (g glutamyl-cysteinil-glycine) present in mammalians essentially in erythrocytes, liver and kidney. It is involved in several intracellular detoxification routes. Among(More)
The aim of this study was to examine whether the sugar moiety of Tamm-Horsfall protein (THP) is affected by pathological processes caused by acute lymphoblastic leukemia (ALL) or non-Hodgkin's lymphoma (NHL). The carbohydrate part of THP was studied by monosaccharide analysis, N-glycan profiling, and reactivity with specific lectins. Our results have shown(More)
Post-physical training changes in iron metabolism in the human body often occur. To fully describe these processes, fifteen male Polish National Team field hockey players (age 27.7 ± 5.2 years, body mass 72.8 ± 7.6 kg and body height 177.1 ± 5.7 cm) were examined in three phases of an annual training cycle: preparatory (T1), competitive (T2) and transition(More)
It has been assumed that the main motor property for Field Hockey players is speed endurance. This is the ability of maintaining very high running speeds in conditions of growing weariness (Bisanz & Gerisch, 1984; Chmura, 1993; Wachowski, Strzelczyk, Dylewski, & Wylegalski, 1995; Wachowski & Strzelczyk, 1999). It is possible to estimate this ability by(More)
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