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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Soccer Performance Analysis

Background:

  • Understanding how physical performance changes during professional soccer match-play is crucial for training and tactical planning.
  • Previous research has indicated performance decrements, but detailed analysis across playing positions and specific match periods is limited.

Purpose of the Study:

  • To investigate the evolution of physical performance metrics throughout professional soccer matches.
  • To examine how these performance changes differ based on player position on the field.

Main Methods:

  • Utilized Global Positioning Systems (GPS) to collect external load data during 35 professional soccer matches.
  • Divided each match into 15-minute intervals to analyze performance variations over time.
  • Assessed key physical performance variables including distance covered, sprinting distance (SPD), sprinting actions (SPAs), high-intensity accelerations (Acc+3), high-intensity decelerations (Dec+3), and high-metabolic load distance (HMLD).

Main Results:

  • Significant changes in physical performance were observed across different 15-minute periods of the match (p < 0.001).
  • Peak performance generally occurred in the first half (0-15 and 30-45 minutes), while the lowest performance was noted between 60-75 minutes for most variables.
  • Playing position had a substantial effect on all performance variables (p < 0.001), with central defenders exhibiting the lowest performance and wide midfielders the highest, except for total distance covered where midfielders led.

Conclusions:

  • Physical performance in professional soccer is not constant throughout a match, varying significantly with the period of play.
  • Player position is a critical determinant of physical performance patterns during match-play.
  • These findings provide valuable insights for optimizing training programs and in-game strategies tailored to specific player roles and match demands.