Comparison of Physical Efficiency Indexes in Soccer: Biomechanical Implications for Load Management and Performance

January 1, 2026Open Access

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Key Points

This study aims to compare the traditional physical efficiency index (PEI) with a new PEI in professional soccer matches.
Analyzed 14 matches played by a professional team in Brazil’s Série B with 11 athletes.
Compared traditional PEI with the new PEI using data on total distance, sprints, accelerations, and decelerations.
Measured variables include average total distance covered, high-speed running distance, and accelerations.
The new PEI showed higher values than the traditional PEI (1.35 vs. 1.18; p-value not specified).
Average total distance was 9712.00 ± 490.90 m, with 496.80 ± 88.28 m in high-speed running.
Mean number of accelerations was 103.4 ± 8.91, indicating increased physical demands.

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Compares traditional and new physical efficiency indices in professional soccer, indicating implications for performance.

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Vieira et al. (2026) studied this question.

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