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Associations between selected training stress measures and fitness changes in male soccer players
Rabbani, Alireza Kargarfard, Mehdi Castagna, Carlo Clemente, Filipe M. Twist, Craig
Rabbani, Alireza
Kargarfard, Mehdi
Castagna, Carlo
Clemente, Filipe M.
Twist, Craig
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EPub Date
Publication Date
2019-01-24
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Abstract
Purpose: The purpose of this study was to investigate the relationship of accumulated Global Positioning System (GPS)-accelerometer-based and heart rate (HR)-based training metrics to changes in high-intensity intermittent running capacity during an in-season phase in professional soccer players. Method: Eleven male professional players (mean ± SD, age: 27.2 ± 4.5 years) performed the 30-15 Intermittent Fitness Test (30-15IFT) before and after a five-week in-season training phase, and the final velocity (VIFT) was considered as players’ high-intensity intermittent running capacity. During all sessions, Edwards’ training impulse (Edwards’ TRIMP), Banister’s TRIMP, Z5 TRIMP, training duration, total distance covered, New Body Load (NBL), high-intensity running performance (distance covered above 14.4 km•h-1), and very high-intensity running performance (distance covered above 19.8 km•h-1) were recorded. Results: The players’ VIFT showed a most likely moderate improvement (+4.3%, 90% confidence limits [3.1; 5.5%], effect size ES, 0.70 [0.51; 0.89]). Accumulated NBL, Banister’s TRIMP and Edwards’ TRIMP showed large associations (r = 0.51 to 0.54) with changes in VIFT. Very large relationship was also observed between accumulated Z5 TRIMP (r= 0.72) with changes in VIFT. Large-to-nearly perfect within-individual relationships were observed between NBL and some of the other training metrics (i.e., Edwards’ TRIMP, Banister’s TRIMP, training duration, and total distance) in 10 out of 11 players. Conclusions: HR-based training metrics can be used to monitor high-intensity intermittent running capacity changes in professional soccer players. The dose-response relationship is also largely detected using accelerometer-based metrics (i.e., NBL) to track changes in high-intensity intermittent running capacity of professional soccer players.
Citation
Rabbani, A., Kargarfard, M., Castagna, C., Clemente, F., & Twist, C. (2019). Associations between selected training stress measures and fitness changes in male soccer players. International Journal of Sports Physiology and Performance, 14(8), 1050–1057.
Publisher
Human Kinetics
Journal
International Journal of Sports Physiology and Performance
Research Unit
DOI
10.1123/ijspp.2018-0462
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
Accepted author manuscript version reprinted, by permission, from International Journal of Sports Physiology and Performance, 2019, https://doi.org/10.1123/ijspp.2018-0462. © Human Kinetics, Inc.
Series/Report no.
ISSN
1555-0265
EISSN
1555-0273