Relationship between Variations in the Accumulated Workload and the Change of Direction Ability in Elite Young Soccer Players

Hadi Nobari, Akhilesh Kumar Ramachandran, Mário Moreira, Saeed Khani, Davood Khezri and Elena Mainer-Pardos
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Hadi Nobari: Department of Physical Education and Special Motricity, Faculty of Physical Education and Mountain Sports, Transilvania University of Braşov, 500068 Braşov, Romania
Akhilesh Kumar Ramachandran: Sports Dynamix Private Limited, Chennai 600006, India
Mário Moreira: Faculty of Human Kinetics, University of Lisbon, 1649-004 Lisbon, Portugal
Saeed Khani: Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan 817467344, Iran
Davood Khezri: Department of Sport Biomechanics and Technology, Sport Sciences Research Institute, Tehran 1587958711, Iran
Elena Mainer-Pardos: Health Sciences Faculty, Universidad San Jorge, Autovia A23 km 299, Villanueva de Gállego, 50830 Zaragoza, Spain

Sustainability, 2022, vol. 14, issue 9, 1-13

Abstract: Background: The main aim of this study was to evaluate the relationships between training workload (WL) parameters with variations in the change of direction (COD) in under-16 soccer players. Methods: Twenty-seven under-16 elite soccer players were daily monitored for their WL across 15 weeks during the competitive soccer season. Additionally, players were assessed two times for anthropometric measures (weight, height, sitting height and leg length), COD performance (modified 505 test) and maturity offset measured using the peak height velocity (PHV). Results: A correlational analysis was performed to determine the relationship between the variation in COD performance and accumulated WL parameters. Moreover, a regression analysis was executed to explain the variations in the percentage of COD performance considering the accumulated WL parameters and PHV of the season ( r = 0.93; p ≤ 0.01) and training monotony during the early-season ( r = 0.53; p ≤ 0.05). There were associations between the acute workload during the start of the season and the COD during the end of the season ( r = 0.47; p ≤ 0.05). The multiple linear regression analysis showed that 55% of the variation in COD performance between the early and end of season could be explained by the acute or chronic WL, training monotony or strain and the PHV. Conclusions: This information might be useful for practitioners and coaches aiming to improve the COD performance in youth soccer players during an entire competitive season.

Keywords: non-linear sprint; acceleration; football; in-season; maturation; ACWLR; training monotony (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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