Positional interchanges influence the physical and technical match performance variables of elite soccer players

Area of Science:

• Sports Science
• Football Analytics

Background:

• Positional variations in elite soccer match performance are documented.
• Limited research exists on the impact of players switching positions during matches.

Purpose of the Study:

• To investigate the influence of elite players interchanging positions on physical and technical match performance.
• To quantify performance differences across various positional switches in the English Premier League (EPL).

Main Methods:

• Utilized data from multiple EPL seasons via a computerized tracking system.
• Analyzed player performance across specific positional interchanges: central-defender to fullback (CD-FB), central-midfielder to wide-midfielder (CM-WM), wide-midfielder to central-midfielder (WM-CM), and attacker to wide-midfielder (AT-WM).
• Employed effect size (ES) to measure performance differences.

Main Results:

• CD-FB interchanges showed significantly higher high-intensity running and sprinting distances, more final third entries, but also more possessions lost.
• CM-WM and WM-CM interchanges exhibited trivial to moderate differences in physical and technical metrics.
• AT-WM interchanges revealed moderate differences in high-intensity running without possession and moderate-to-large differences in defensive actions (clearances, tackles) and possessions won.

Conclusions:

• Physical and technical demands differ substantially across positional interchanges in elite soccer.
• Utility players appear capable of adapting to the varied demands of different playing positions.