Perceptions of Football Analysts Goal-Scoring Opportunity Predictions: A Qualitative Case Study.

This study aimed to understand the way tactical football analysts perceive the general match analysis issues and to analyze their tactical interpretation of the predictive models of conceded goal-scoring opportunities. Nine tactical analysts responded to the semi-structured interviews that included a general section on the match analysis and a specific one on the results of a study on goal-scoring opportunities conceded by a Spanish La Liga team. Following their transcription, the interviews were codified into categories by the two researchers using Atlas Ti® software. Subsequently, frequency count and co-occurrence analysis were performed based on the encodings. The content analysis reflected that analysts play a crucial role in the analysis of their own team and that of the opponent, the essential skills to exercise as a tactical analyst being "understanding of the game" and "clear observation methodology." Based on the case study of the conceded goal-scoring opportunities, the major causes and/or solutions attributed by analysts in some of the predictive models were the adaptability of the "style of play" itself according to the "opponent" and "pressure after losing."

Relationship between Physical Fitness and Match Performance Parameters of Chile Women's National Football Team.

The aim of this study was to analyze the relationships between the level of physical fitness and the physical performance parameters recorded by GPS in official FIFA matches of the Chilean women's senior national football team in the period 2018-2020. Twenty-six female field players (age (mean ± SD) 26.8 ± 3.3 years, height 157.8 ± 21.5 cm, weight 58.9 ± 4.9 kg) participated in the study. Physical fitness variables were assessed: muscular strength, countermovement jump (CMJ), speed, agility and aerobic fitness. Physical performance variables were recorded by GPS in 26 official FIFA matches. The most notable associations with significant statistical significance (p < 0.001) were those observed between neuromuscular variables such as time to run 10 m (T10; r = -0.629) and jump (CMJ; r = 0.502) and the number of accelerations; aerobic fitness showed a highly significant relationship with meters run per minute (M/M; r = 0.589). The findings of this study provide evidence of how the level of physical fitness (neuromuscular and aerobic) relates to physical performance parameters recorded in official competitions.

[Analysis of adiposity and physical fitness in young Colombian students].

INTRODUCTION: Body mass index and physical fitness are important markers of a healthy life style. Objective: To analyze adiposity and physical fitness in young students from public schools in Armenia, Colombia, and examine differences between sex and age groups. Materials and methods: We analyzed 1,150 students: 46.6% (n=536) males and 53.4% (n=614) females, with an age range of 10 to 20 years (15.45 ± 2.52). Physical fitness was evaluated by the Course-Navette test, the Horizontal Jump test, the 20-meter run test and the Sit-and-Reach test. Body mass index and body fat were also assessed. Results: Compared with males, females had significantly higher adiposity levels, body mass index (20.4 vs. 19.5) and body fat (23% vs. 11%). Males had higher levels of physical fitness in all the variables analyzed, with statistically significant differences (p<0.001), except in flexibility, where females achieved better results (3.1cm vs.1 3cm; p=0.003). In both sexes, body mass index increased with age (p<0.001). However, body fat decreased with age in males (p<0.001) and increased in females (p<0.001). In males, physical fitness improved with age in all variables. In females, no significant differences were found between age groups except in the maximal oxygen uptake (VO2max, p<0.001). Conclusion: Adiposity was significantly higher in women than in men. Males had a better level of physical fitness than females, except in flexibility. Physical fitness improved significantly with age in males, but did not change in females.

Análisis de la adiposidad y la condición física en escolares colombianos / Analysis of adiposity and physical fitness in young Colombian students

Introducción. El índice de masa corporal y la condición física son indicadores de un estilo de vida saludable. Objetivo. Analizar el grado de adiposidad y la condición física en estudiantes de instituciones educativas públicas de Armenia, Colombia, y estudiar las diferencias por sexo y edad. Materiales y métodos. Participaron 1.150 estudiantes, de los cuales 46,6 % eran de sexo masculino (n=536) y 53,4 % (n=614) de sexo femenino; el rango de edad fue de 10 a 20 años (15,45 ± 2,52). Las pruebas de condición física usadas fueron el test de Course-Navette, el de salto horizontal, el de la carrera de 20 m y el de Wills y Dillon. También, se evaluaron el índice de masa corporal y el porcentaje de grasa. Resultados. En comparación con los hombres, las mujeres tenían mayor adiposidad, índice de masa corporal (20,4 Vs . 19,5) y porcentaje de grasa (23 Vs . 11 %). En cuanto a la condición física, los hombres registraron un mejor rendimiento en todas las variables estudiadas, con diferencias significativas (p<0,001), excepto en la flexibilidad, en la que las mujeres alcanzaron mejores resultados (3,1 Vs . 1,3 cm; p=0,003). En ambos sexos, el índice de masa corporal aumentó con la edad (p<0,001); en los hombres, el porcentaje de grasa disminuyó con la edad (p<0,0001) y en las mujeres aumentó (p<0,001). La condición física de los hombres mejoró con la edad en todas las variables, mientras que en las mujeres no hubo diferencias significativas entre los grupos de edad, salvo en el consumo máximo de oxígeno (VO 2máx ) (p<0,001). Conclusión. La adiposidad fue significativamente mayor en las mujeres que en los hombres. Los hombres tuvieron una mejor condición física en todas las variables, excepto en la flexibilidad. En los hombres la condición física mejoró significativamente con la edad, en tanto que en las mujeres no cambió.

Introduction: Body mass index and physical fitness are important markers of a healthy life style. Objective: To analyze adiposity and physical fitness in young students from public schools in Armenia, Colombia, and examine differences between sex and age groups. Materials and methods: We analyzed 1,150 students: 46.6% (n=536) males and 53.4% (n=614) females, with an age range of 10 to 20 years (15.45 ± 2.52). Physical fitness was evaluated by the Course-Navette test, the Horizontal Jump test, the 20-meter run test and the Sit-and-Reach test. Body mass index and body fat were also assessed. Results: Compared with males, females had significantly higher adiposity levels, body mass index (20.4 vs. 19.5) and body fat (23% vs. 11%). Males had higher levels of physical fitness in all the variables analyzed, with statistically significant differences (p<0.001), except in flexibility, where females achieved better results (3.1cm vs.1 3cm; p=0.003). In both sexes, body mass index increased with age (p<0.001). However, body fat decreased with age in males (p<0.001) and increased in females (p<0.001). In males, physical fitness improved with age in all variables. In females, no significant differences were found between age groups except in the maximal oxygen uptake (VO 2max , p<0.001). Conclusion: Adiposity was significantly higher in women than in men. Males had a better level of physical fitness than females, except in flexibility. Physical fitness improved significantly with age in males, but did not change in females.