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Comparisons of Accelerometer Variables Training Monotony and Strain of Starters and Non-Starters: A Full-Season Study in Professional Soccer Players

Author

Listed:
  • Hadi Nobari

    (Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan 81746-7344, Iran
    Sports Scientist, Sepahan Football Club, Isfahan 81887-78473, Iran)

  • Rafael Oliveira

    (Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2140-413 Rio Maior, Portugal
    Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal
    Life Quality Research Centre, 2140-413 Rio Maior, Portugal)

  • Filipe Manuel Clemente

    (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)

  • Jose Carmelo Adsuar

    (HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain)

  • Jorge Pérez-Gómez

    (HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain)

  • Jorge Carlos-Vivas

    (HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain)

  • João Paulo Brito

    (Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2140-413 Rio Maior, Portugal
    Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal
    Life Quality Research Centre, 2140-413 Rio Maior, Portugal)

Abstract

The purpose of this study was two-fold: (1) to describe weekly average values for training monotony (TM) and training strain (TS) and their variations across the full soccer season, based on the number of accelerations and decelerations; (2) to analyze the differences between starter and non-starter players on weekly average TM and TS values for the pre-season and three in-season periods. In total, 21 professional soccer players were evaluated over 48 weeks during the full-season. The TM and TS were calculated based on the number of accelerations and decelerations at zone 1, zone 2 and zone 3, respectively. The results revealed that starters presented higher values compared to non-starters throughout the full season for all variables analyzed (all, p < 0.05). Generally, there were higher values in the pre-season. Specifically, accelerations at zones 1, 2 and 3 revealed moderate to very large significance of the starters compared to non-starters over the full-season. Decelerations at zone 1, 2 and 3 presented moderate to nearly optimally significant greater weekly averages for starters compared to non-starters during the full season. In conclusion, the TM and TS values were higher for starters compared to non-starters through the full-season, which confirms that the training session does not provide a sufficient load to non-starter soccer players during the full-season.

Suggested Citation

  • Hadi Nobari & Rafael Oliveira & Filipe Manuel Clemente & Jose Carmelo Adsuar & Jorge Pérez-Gómez & Jorge Carlos-Vivas & João Paulo Brito, 2020. "Comparisons of Accelerometer Variables Training Monotony and Strain of Starters and Non-Starters: A Full-Season Study in Professional Soccer Players," IJERPH, MDPI, vol. 17(18), pages 1-14, September.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:18:p:6547-:d:410801
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    References listed on IDEAS

    as
    1. Filipe Manuel Clemente & Rui Silva & Daniel Castillo & Asier Los Arcos & Bruno Mendes & José Afonso, 2020. "Weekly Load Variations of Distance-Based Variables in Professional Soccer Players: A Full-Season Study," IJERPH, MDPI, vol. 17(9), pages 1-12, May.
    2. Karin Sonderegger & Markus Tschopp & Wolfgang Taube, 2016. "The Challenge of Evaluating the Intensity of Short Actions in Soccer: A New Methodological Approach Using Percentage Acceleration," PLOS ONE, Public Library of Science, vol. 11(11), pages 1-10, November.
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    Cited by:

    1. Guilherme da Silva Rodrigues & Karine Pereira Rodrigues & Mariana Luciano de Almeida & Andressa Crystine da Silva Sobrinho & Natalia Yumi Noronha & Cicero Jonas Rodrigues Benjamim & Sabrina da Silva &, 2023. "Comparing Fourteen Weeks of Multicomponent Training Versus Combined Training in Physically Inactive Older Women: A Randomized Trial," IJERPH, MDPI, vol. 20(3), pages 1-13, February.
    2. Hadi Nobari & Mustafa Sögüt & Rafael Oliveira & Jorge Pérez-Gómez & Katsuhiko Suzuki & Hassane Zouhal, 2021. "Wearable Inertial Measurement Unit to Accelerometer-Based Training Monotony and Strain during a Soccer Season: A within-Group Study for Starters and Non-Starters," IJERPH, MDPI, vol. 18(15), pages 1-12, July.
    3. Hadi Nobari & Rafael Oliveira & João Paulo Brito & Jorge Pérez-Gómez & Filipe Manuel Clemente & Luca Paolo Ardigò, 2021. "Comparison of Running Distance Variables and Body Load in Competitions Based on Their Results: A Full-Season Study of Professional Soccer Players," IJERPH, MDPI, vol. 18(4), pages 1-11, February.
    4. Hadi Nobari & Elena Mainer-Pardos & Angel Denche Zamorano & Thomas G. Bowman & Filipe Manuel Clemente & Jorge Pérez-Gómez, 2021. "Sprint Variables Are Associated with the Odds Ratios of Non-Contact Injuries in Professional Soccer Players," IJERPH, MDPI, vol. 18(19), pages 1-10, October.
    5. Rafael Oliveira & João Paulo Brito & Nuno Loureiro & Vítor Padinha & Hadi Nobari & Bruno Mendes, 2021. "Will Next Match Location Influence External and Internal Training Load of a Top-Class Elite Professional European Soccer Team?," IJERPH, MDPI, vol. 18(10), pages 1-15, May.
    6. Hadi Nobari & Luis Felipe Tubagi Polito & Filipe Manuel Clemente & Jorge Pérez-Gómez & Mina Ahmadi & Miguel Ángel Garcia-Gordillo & Ana Filipa Silva & Jose Carmelo Adsuar, 2020. "Relationships Between Training Workload Parameters with Variations in Anaerobic Power and Change of Direction Status in Elite Youth Soccer Players," IJERPH, MDPI, vol. 17(21), pages 1-15, October.
    7. Renato Fernandes & João Paulo Brito & Luiz H. Palucci Vieira & Alexandre Duarte Martins & Filipe Manuel Clemente & Hadi Nobari & Victor Machado Reis & Rafael Oliveira, 2021. "In-Season Internal Load and Wellness Variations in Professional Women Soccer Players: Comparisons between Playing Positions and Status," IJERPH, MDPI, vol. 18(23), pages 1-13, December.
    8. Hadi Nobari & Sara Mahmoudzadeh Khalili & Rafael Oliveira & Alfonso Castillo-Rodríguez & Jorge Pérez-Gómez & Luca Paolo Ardigò, 2021. "Comparison of Official and Friendly Matches through Acceleration, Deceleration and Metabolic Power Measures: A Full-Season Study in Professional Soccer Players," IJERPH, MDPI, vol. 18(11), pages 1-9, June.

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