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Evaluation of the Match External Load in Soccer: Methods Comparison
International Journal of Sports Physiology and Performance
|September 13, 2016
Summary
Two soccer match analysis methods for external load are interchangeable for ranking intensity but not for absolute measurement. Use one method consistently to avoid bias in elite player load tracking.
Area of Science:
- Sports Science
- Biomechanics
- Exercise Physiology
Background:
- Accurate external load measurement is crucial for elite soccer player performance monitoring.
- Different analytical methods exist for quantifying physical demands during matches.
- Understanding the interchangeability of these methods is key for consistent data interpretation.
Purpose of the Study:
- To compare two match-analysis approaches for external load detection in male elite soccer.
- To assess the interchangeability of speed and metabolic power thresholds for high-intensity load quantification.
- To identify potential biases when using different methods for match analysis.
Main Methods:
- Analysis of 60 matches (1200 player cases) from top-tier European leagues (2013-14 season).
- Utilized a validated semiautomated multicamera system (25 Hz) for physical performance data.
- Employed speed (≥16 km/h) and metabolic power (≥20 W/kg) thresholds for high-intensity analysis.
Main Results:
- High-intensity distance measurements using speed and metabolic power were highly correlated (r = .93).
- Significant bias (980.63 ± 87.82 m) was observed between metabolic power and speed methods for absolute load.
- Strong correlations were found between total distance and both high-intensity speed (r = .74) and metabolic power (r = .84).
Conclusions:
- Speed and metabolic power methods are interchangeable for relative intensity ranking but not absolute magnitude.
- Both methods can be independently used to track external load in elite soccer players.
- Consistent application of a single analysis method is recommended to prevent bias in external load determination.
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