Examinando por Autor "Grajek, Mateusz"

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  • Miniatura
    Ítem
    Anthropometric profile and position-specific changes in segmental body composition of professional football players throughout a training period
    (Multidisciplinary Digital Publishing Institute (MDPI), 2024-10) Staśkiewicz Bartecka, Wiktoria; Krupa Kotara, Karolina; Rozmiarek, Mateusz; Malchrowicz Mośko, Ewa; Grajek, Mateusz; Agirre Elordui, Saioa; Urriolabeitia Razkin, Jokin; Castañeda Babarro, Arkaitz
    Body and anthropometric profiles of football players vary depending on the physiological and technical demands imposed by different positions. The aim of this study was to evaluate the body composition of professional soccer players in relation to their position on the field during a training macrocycle. The Direct Segmental Multi-Frequency Bioelectrical Impedance Analysis method was used to analyze 58 players at six key moments of the macrocycle. The results show that body profiles are adjusted to the specific demands of each position. Midfielders showed the lowest muscle mass, while defenders showed many notable changes. In general, as the season progressed, all field players experienced an increase in trunk body fat. Fat and lean mass values of goalkeepers differed greatly from the rest. The greatest variations in body composition were observed during pre-season and transition in relation to variations in training load and competitive intensity. The results suggest that the phase of the macrocycle has a greater influence on these variations, although the physical characteristics of each position are relevant. Understanding these dynamics allows for the design of more personalized and efficient training programs to optimize the performance of footballers according to their roles and each stage of the season.
  • Miniatura
    Ítem
    Pro-environmental transformation of cultural institutions through sustainable infrastructural projects: a case study of Poznan
    (Multidisciplinary Digital Publishing Institute (MDPI), 2024-04) Rozmiarek, Mateusz; Malchrowicz Mośko, Ewa; Grajek, Mateusz; Castañeda Babarro, Arkaitz; León Guereño, Patxi; Prabucki, Bartosz
    The aim of the article is to elucidate pro-environmental solutions and activities, consonant with the tenets of sustainability and enduring developmental paradigms, implemented within the infrastructural purview of the cultural institutions situated in Poznan—a municipality located in western Poland. A diagnostic scrutiny was executed encompassing the entirety of municipal cultural entities, constituting a cumulative assemblage of 15 establishments, all of which were extended invitations to participate in this investigation. Interrogations were directed towards ascertaining their strategic, environmentally conscientious determinations vis à vis the construction, renovation, or modernization of edifices during the temporal expanse of 2021 and 2022. Ultimately, responses germane to the posed inquiries were proffered by 7 institutions, as the remaining entities refrained from financial investments during the stipulated timeframe. The discerned outcomes illuminate the manifold pro-environmental measures and endeavors embraced by these institutions within the domain of infrastructural initiatives. These initiatives pertain to ecological considerations, safeguarding the natural milieu, and fortifying sustainability, encompassing facets such as energy and water conservation, the abatement of water and air contaminants, recycling endeavors, the utilization of renewable materials, the afforestation of vicinities, and the mitigation of the ostensibly designated “heat island effect”, among sundry others. These initiatives are not only significant for the current ecological situation worldwide, but they also appear to be crucial for the better future of the next generations.