Browsing by Subject "Physical indicators"

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    Predictive value of skill performance in terms of physical indicators in 14-year-old football players
    (Universidad de Murcia, Servicio de Publicaciones, 2022) Al Jaleel Abd Al Zahra, Mahmood Abd; Hadi, Ali Kadhim; Saad, Ahmed Khattar
    The primary objective of this study was to identify the reality of the physical fitness and skills among young football players in the Najaf Governorate and to find a predictive value for the physical and skills indicators for the selection of junior football players in Najaf Governorate. The researchers used the descriptive approach with two methods of interrelationships. The present study was conducted on the 14 years old players of football schools in Najaf Governorate in the year 2021. The study was conducted in the playgrounds of the football school in the center of Najaf Governorate (Iraq) within the timeframe from January 2021 to March 2021. A total of 40 14-year-old football players participated in the study. Based on the findings of this study, the researchers concluded that the physical fitness of the football players is directly and significantly related to their skill performance.
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    Relaciones agua-suelo-vegetación.-Influence of land use and soil type in water retention and texture of the soils of Mazarrón (S.E. of Spain)
    Sánchez Navarro, Antonio; Fernández-Delgado Juárez, M.; Gil Vázquez, J.M.; García González, M.; Blanco Bernardeau, M.A.; Universidad de Murcia
    ABSTRACT It is known that some soil properties, such as texture and water retention, are influenced by the kind of soil and the use which is applied to it. Due to this, it has been determined texture and soil pF (1/3 atm and 15 atm) in 41 samples of soil surface (0 - 30 cm.), that were taken according to a distribution of 3x3 Km in the Southwest of the Murcia Region (National Topographic Map 1:50.000 Mazarrón 976). It has been also realized its classification according to Soils International Classification by FAO-ISRIC-IUSS (2006), as well as identifying its actual use in situ. The resulting indicators of pF 1/3 atm. (field capacity), pF 15 atm. (wilting point) and, generated from them, plant available water capacity (PWAC), are quite well related to the kinds of soils, and they might be used as physical quality indicators to evaluate the soils in this area.