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Differences in Physiological Responses Between Two Repeated Sprint Protocols in Female Soccer Players
Emma Hörnlund1, Spyridon Hadjispyrou1,2, Apostolos Theos1,3
1Section of Sports Medicine, Department of Community & Rehabilitation, Umeå University, SWEDEN.
International Journal of Exercise Science
|January 14, 2025
Summary
Repeated sprints without change-of-direction (RSA) are more physiologically taxing for female soccer players than sprints with change-of-direction (RCOD). This finding helps optimize training strategies for women's soccer performance.
Area of Science:
- Sports Science
- Exercise Physiology
- Soccer Performance Analysis
Background:
- Soccer demands repeated high-intensity sprints with short recovery periods.
- Assessing fitness components like repeated sprints with (RCOD) and without (RSA) change-of-direction is crucial for soccer players.
- Understanding the physiological demands of different sprint types informs training program design.
Purpose of the Study:
- To compare the physiological responses between RSA and RCOD tests in female soccer players.
- To investigate the relationship between these sprint tests and aerobic capacity, estimated by the Yo-Yo intermittent recovery test (YYIR1).
- To provide insights for optimizing training strategies in women's soccer.
Main Methods:
- Thirteen female soccer players (age 20.8 ± 2.6 years) completed RSA, RCOD, and YYIR1 tests.
- Physiological markers including fatigue percentage, blood lactate ([La]b), rating of perceived exertion (RPE), and heart rate were recorded during sprint tests.
- Total distance covered in the YYIR1 was measured to assess aerobic capacity.
Main Results:
- RSA elicited significantly higher fatigue (8.0% vs. 5.0%), blood lactate (13.5 vs. 9.9 mmol/L), and RPE (8 vs. 7) compared to RCOD.
- Heart rate recovery was faster following RCOD (173 bpm) than RSA (178 bpm).
- No significant correlations were found between aerobic capacity (YYIR1) and the variables measured in the RSA and RCOD tests.
Conclusions:
- Repeated sprints without change-of-direction (RSA) represent a more physiologically demanding test for female soccer players compared to RCOD, when sprint duration is matched.
- The findings suggest that RSA places a greater acute physiological stress on players.
- This research can guide coaches in tailoring training programs to enhance specific aspects of soccer-specific fitness in female athletes.
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