Comparisons of accelerometer variables training monotony and strain of starters and non-starters: a full-season study in professional soccer players

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 di erences between starter and non-starter...

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Bibliographic Details
Main Author: Nobari, Hadi (author)
Other Authors: Oliveira, Rafael (author), Clemente, Filipe Manuel (author), Adsuar, Jose Carmelo (author), Pérez-Gómez, Jorge (author), Carlos-Vivas, Jorge (author), Brito, João (author)
Format: article
Language:eng
Published: 2020
Subjects:
Online Access:http://hdl.handle.net/10400.15/3130
Country:Portugal
Oai:oai:repositorio.ipsantarem.pt:10400.15/3130
Description
Summary: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 di erences 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 su cient load to non-starter soccer players during the full-season.