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Article

Wearable Inertial Measurement Unit to Measure External Load: A Full-Season Study in Professional Soccer Players

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Department of Physical Education and Sports, University of Granada, 18010 Granada, Spain
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Department of Physiology, School of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain
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Sports Scientist, Sepahan Football Club, Isfahan 81887-78473, Iran
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Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 56199-11367, Iran
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Department of Performance Analysis, Criciúma Football Club, Criciúma 88816-276, Brazil
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LabSport, Center of Physical Education and Sports, Federal University of Espírito Santo, Vitória 29075-910, Brazil
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Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
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Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
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HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain
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Institute for Computing Research, Physical Education and Sports, Faculty of Education, University of Alicante, 03013 Alicante, Spain
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Department of Neurosciences, Biomedicine and Movement Sciences, School of Exercise and Sport Science, University of Verona, 37131 Verona, Italy
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Paolo Visconti
Appl. Sci. 2022, 12(3), 1140; https://doi.org/10.3390/app12031140
Received: 8 November 2021 / Revised: 19 January 2022 / Accepted: 20 January 2022 / Published: 21 January 2022
(This article belongs to the Special Issue Wearables and Smartphone Applications in Sports)
The aim of this study was to describe weekly acute workload (wAW), chronic workload (wCW), acute: chronic workload ratio (wACWR), training monotony (wTM), and training strain (wTS) variations over a full season across playing positions. Twenty-one professional soccer players were daily monitored during 48 consecutive weeks. Total distance, sprint total distance (STD), high-speed running distance (HSRd), maximum speed, number of the repeated sprints, and body load (BL) were obtained during training and matches using a Wearable Inertial Measurement Unit. The wAW was determined for each external load measure. The wCW, wACWR, and wTM were calculated based on BL metric. Higher values of weekly STD were observed in lateral defenders/wingers (LDW) compared to central defenders/forwards (CDF) (p = 0.009; ES = Large) and midfielders (MDF) (p = 0.034; ES = Large). Additionally, weekly HSRd was higher in LDW vs. CDF (p = 0.016; ES = Large) and MDF (p = 0.011; ES = Large). The CDF presented a lower weekly number of repeated sprints than LDW (p = 0.021; ES = Large). In conclusion, weekly external load metrics were position-dependent over the season. Moreover, LDW a presented greater weekly STD, HSRd, and number of repeated sprints compared to other positions. View Full-Text
Keywords: football; external load monitoring; performance; GPS; WIMU; sport science football; external load monitoring; performance; GPS; WIMU; sport science
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MDPI and ACS Style

Nobari, H.; Gonçalves, L.G.; Aquino, R.; Clemente, F.M.; Rezaei, M.; Carlos-Vivas, J.; Pérez-Gómez, J.; Pueo, B.; Ardigò, L.P. Wearable Inertial Measurement Unit to Measure External Load: A Full-Season Study in Professional Soccer Players. Appl. Sci. 2022, 12, 1140. https://doi.org/10.3390/app12031140

AMA Style

Nobari H, Gonçalves LG, Aquino R, Clemente FM, Rezaei M, Carlos-Vivas J, Pérez-Gómez J, Pueo B, Ardigò LP. Wearable Inertial Measurement Unit to Measure External Load: A Full-Season Study in Professional Soccer Players. Applied Sciences. 2022; 12(3):1140. https://doi.org/10.3390/app12031140

Chicago/Turabian Style

Nobari, Hadi, Luiz G. Gonçalves, Rodrigo Aquino, Filipe Manuel Clemente, Manuchehr Rezaei, Jorge Carlos-Vivas, Jorge Pérez-Gómez, Basilio Pueo, and Luca Paolo Ardigò. 2022. "Wearable Inertial Measurement Unit to Measure External Load: A Full-Season Study in Professional Soccer Players" Applied Sciences 12, no. 3: 1140. https://doi.org/10.3390/app12031140

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