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The relationship between movement speed and duration during soccer matches
Kai Roecker1,2, Hubert Mahler1,2, Christian Heyde1,2,3
1Furtwangen University, Applied Public Health (AGW), Furtwangen, Germany.
Plos One
|July 26, 2017
Summary
This study reveals a sigmoidal relationship between maximum horizontal speed and movement duration in soccer players. This finding helps characterize individual player performance and functional state during games.
Area of Science:
- Sports Science
- Biomechanics
- Exercise Physiology
Background:
- Previous research modeled movement duration and power output.
- Endurance sports utilize power profiles and critical power concepts.
- Soccer performance involves varying movement intensities and durations.
Purpose of the Study:
- To evaluate the numerical relationship between maximum horizontal movement speed (HSpeed) and movement duration (t(dur)) in soccer.
- To model this relationship using a sigmoidal decay function.
- To identify parameters describing individual player characteristics.
Main Methods:
- Utilized GPS data from 38 soccer players across 82 games.
- Selected maximum HSpeed for 21 distinct t(dur) values (0.3s to 2,700s).
- Employed moving medians with incremental t(dur) window-size for analysis.
Main Results:
- The relationship between HSpeed and Log(t(dur)) consistently formed a sigmoidal decay function.
- A five-parameter equation accurately fitted the data, including upper/lower asymptotes and inflection point.
- Mixed-model analysis of the first three parameters indicated individual player characteristics.
Conclusions:
- This study presents the first numerical relationship between t(dur) and HSpeed in soccer.
- HSpeed against t(dur) yields a sigmoidal shape, differing from speed-power models.
- The model describes maximum player speed and functional state during games.
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