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Monitoring Training and Match Physical Load in Junior Soccer Players: Starters versus Substitutes

Faculty of Education and Arts, Department of Physical Education and Sport Science, Nord University, 7660 Levanger, Norway
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Sports 2019, 7(3), 70; https://doi.org/10.3390/sports7030070
Received: 30 January 2019 / Revised: 12 March 2019 / Accepted: 15 March 2019 / Published: 19 March 2019
(This article belongs to the Special Issue Training Process in Soccer Players)
The aim of this study was to investigate differences in the physical (locomotor activities) and physiological (Banister’s training impulse) in-season training load between starters and substitutes in a well-trained junior soccer team. Physical performance variables from the Polar Team Pro system were collected and analyzed from a sample of junior soccer players (N = 18; age = 15.7 ± 0.5 years; stature, 177.9 ± 4.6 cm; body mass, 67.1 ± 5.5 kg). The study analyzed a total of 10 matches and 38 training sessions during the 2018 season with linear mixed models. The players from the starting line-ups demonstrated significantly higher average weekly physical load compared to the non-starters with respect to all variables: distance (total, running, high-speed running, and sprint) [F (1, 573) ≥ 66, p < 0.001, eta = 0.10], number of accelerations and sprints [F (1, 573) ≥ 66, p < 0.001, eta = 0.10], as well as Banister’s training impulse (TRIMP) [F (1, 569) = 10, p < 0.001, eta = 0.02]. Evidence from this study indicates that a large amount of weekly accumulated high-speed running and sprint distances is related to match playing time. Therefore, weekly fitness-related adaptations in running at high speeds seem to favor the starters in a soccer team. View Full-Text
Keywords: soccer; training process; training load; soccer match; acceleration; sprint; high-speed running; Banister TRIMP soccer; training process; training load; soccer match; acceleration; sprint; high-speed running; Banister TRIMP
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Dalen, T.; Lorås, H. Monitoring Training and Match Physical Load in Junior Soccer Players: Starters versus Substitutes. Sports 2019, 7, 70.

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