Examinando por Autor "Urriolabeitia Razkin, Jokin"

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    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.