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Browsing by Author "Fonseca, Jose"

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  • Comparison of running and accelerometry variables based onmatch outcome, match location and quality of opponent in eliteprofessional soccer players. A five-season study
    Publication . Morgans, Ryland; Radnor, John; Fonseca, Jose; Rhodes, Dave; Ryan, Ben; King, Matthew; Zmijewski, Piotr; Oliveira, Rafael
    The aim of this study was to compare external match load, according to match outcome, match location, and opponent quality across five competitive seasons. Forty-six professional outfield soccer players from the same English Premier League club across the complete 2018/19 to 2022/23 seasons were involved in the study. For each match, the outcome (win, draw, loss), match location (home, away) and quality of opponent (top or bottom six teams, remaining mid-table teams) were recorded. Players covered significantly more m/min and performed more decelerations when playing against the top six compared to mid-table or bottom six teams (p < 0.001; d = 0.213–0.322). There were no differences in external match load depending on match outcome. There were significant opponent×outcome×match location interactions for each position across most of the external match load measures, but these differed in magnitude forspecific metrics and positions(p = 0.001–0.048; d = 0.300–1.741). The present study provided novel information on external match load and the influence of match outcome, match location and opponent quality. This may support and contribute to understanding how to improve training methods to physically prepare players to cope with varying contexts.
    2024Journal article Open access Show more
  • Match running performance is influenced by possession and teamformation in an English Premier League team
    Publication . Morgans, Ryland; Radnor, John; Fonseca, Jose; Haslam, Chris; King, Matthew; Rhodes, Dave; Żmijewski, Piotr; Oliveira, Rafael
    The aim of this study was to examine the possession (very low, low, high, and very high), team formation (3-5-2 and 4-3-3) and position (centre-backs, full-backs, centre midfielders, attacking midfielders, and centre forwards) on match load across two consecutive seasons in elite soccer. Twenty-seven English Premier League outfield players were recruited. Data was monitored through an 18 Hz Global Positioning System and a 25 Hz semi-automated camera tracking system, respectively, and all variables were analysed per minute. Main effects for formation on total distance (TD) (p = 0.006; η2 = 0.010), high-speed running (HSR) (p = 0.009; η2 = 0.009), number of high metabolic load (HML) efforts (p = 0.004; η2 = 0.011) were observed. In addition, there were significant interaction effects with formation×possession on TD (p < 0.001; η2 = 0.043), HSR (p = 0.006; η2 = 0.018), sprinting (p < 0.001; η2 = 0.030), HML efforts (p < 0.001; η2 = 0.035), accelerations (p < 0.001; η2 = 0.025). From the position-specific analysis, only the running performance of centre-backs was affected by formation or positional factors. These results indicate that formation and possession can have a significant impact on TD, HSR, and HML distance. Furthermore, players performed more high-intensity efforts in 3-5-2 than 4-3-3 formation. These findings suggest that coaches can evaluate running performance in the context of formation and possession and tailor tactical strategies to optimise physical performance.
    2024-02Journal article Open access Show more