Wearable Inertial Measurement Unit to Accelerometer-Based Training Monotony and Strain during a Soccer Season: A within-Group Study for Starters and Non-Starters

Hadi Nobari, Mustafa Sögüt, Rafael Oliveira, Jorge Pérez-Gómez, Katsuhiko Suzuki and Hassane Zouhal
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Hadi Nobari: Department of Physical Education and Sports, University of Granada, 18010 Granada, Spain
Mustafa Sögüt: Department of Physical Education and Sports, Faculty of Education, Middle East Technical University, 06800 Ankara, Turkey
Rafael Oliveira: ESDRM-IPS-Sports Science School of Rio Maior—Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal
Jorge Pérez-Gómez: HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain
Katsuhiko Suzuki: Faculty of Sport Sciences, Waseda University, Tokorozawa 359-1192, Japan
Hassane Zouhal: Movement, Sport, Health and Sciences Laboratory (M2S), University of Rennes 2, F-35000 Rennes, France

IJERPH, 2021, vol. 18, issue 15, 1-12

Abstract: The purpose of this study was to analyze the intragroup differences in weekly training monotony (TM) and training strain (TS) between starter and non-starter male professional soccer players at accelerometry based variables throughout the periods of a season. TM and TS of different accelerations and decelerations zones for twenty-one players were followed for forty-eight weeks. Regardless of group, players obtained the highest mean TM (starters = 3.3 ± 0.6, non-starters = 2.2 ± 1.1, in arbitrary unit, AU) and TS (starters = 1288.9 ± 265.2, non-starters = 765.4 ± 547.5, AU) scores in the pre-season for accelerations at Zone 1 (<2 m/s 2 ). The results also indicated that both groups exhibited similar TM and TS scores in accelerations at Zones 2 (2 to 4 m/s 2 ) and 3 (>4 m/s 2 ) across the entire season. While the starters showed the highest TM and TS scores at deceleration Zone 1 (Keywords: football; external training load; WIMU; GPS; acceleration; deceleration (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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