Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season

Excessive daily training load (TL) can affect the musculoskeletal system health of youth elite soccer players. The purposes of this study were (i) to describe the TL and session rating of perceived exertion (s-RPE) throughout the competition season; (ii) to analyze the weekly (w) differences of acut...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hadi Nobari, Masoud Kharatzadeh, Sara Mahmoudzadeh Khalili, Jorge Pérez-Gómez, Luca Paolo Ardigò
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	monitoring performance playing position RPE youth player Medicine R
Acceso en línea:	https://doaj.org/article/9049b3dd5b1647e0bda0995cb3fdc2d6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9049b3dd5b1647e0bda0995cb3fdc2d6
record_format	dspace
spelling	oai:doaj.org-article:9049b3dd5b1647e0bda0995cb3fdc2d62021-11-25T17:43:41ZFluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season10.3390/healthcare91114182227-9032https://doaj.org/article/9049b3dd5b1647e0bda0995cb3fdc2d62021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9032/9/11/1418https://doaj.org/toc/2227-9032Excessive daily training load (TL) can affect the musculoskeletal system health of youth elite soccer players. The purposes of this study were (i) to describe the TL and session rating of perceived exertion (s-RPE) throughout the competition season; (ii) to analyze the weekly (w) differences of acute (daily) workload (wAWL), chronic workload (wCWL), acute–chronic workload ratio, training monotony (wTM), and training strain (wTS) among three periods over the season (early-, mid-, and end-season) by playing position; and (iii) to compare the TL variables during competition periods for the whole team. Twenty young elite soccer players in the under-14 category participated in this study. The game positions were considered as six wide defenders and wide midfielders (WM), five central defenders and central midfielders, and four strikers (ST). Daily monitoring was continued for 26 weeks during a full competition season. According to the league schedule, the season was divided into three periods: early-season from w1 to w8, mid-season from w9 to w17, and end-season from w18 to w26. The main results were that the higher TLs were detected in the early- and mid-season. There was a wAWL and wCWL decrease for all playing positions from early- to mid- and end-season, but the wCWL change was significant only from early- to mid-season (<i>p</i> ≤ 0.05). For all playing positions but ST, there was a considerable wTM increase from early- to mid-season. When compared with all other playing positions in terms of wAWL and wCWL, WM showed significantly greater values (<i>p</i> ≤ 0.05). Throughout the season periods, all workload indicators showed a considerable reduction, although there was a significant increase in the three other workload-derived variables (all with <i>p</i> ≤ 0.05) and namely: (i) wACWLR from mid- to end-season; (ii) wTM from early- to mid- and end-season; and (iii) wTS from early- to mid-season. Daily training load and s-RPE had significant fluctuations during all macrocycles of the competition season (<i>p</i> ≤ 0.05). In addition, in the mid-season, wTM and wTS were higher. Training load monitoring (in terms of, e.g., wAWL, wCWL, and s-RPE) could be the key for coaches of soccer teams to prevent overtraining and injury, especially in U-14 players, who are more susceptible to being affected by high workload.Hadi NobariMasoud KharatzadehSara Mahmoudzadeh KhaliliJorge Pérez-GómezLuca Paolo ArdigòMDPI AGarticlemonitoringperformanceplaying positionRPEyouth playerMedicineRENHealthcare, Vol 9, Iss 1418, p 1418 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	monitoring performance playing position RPE youth player Medicine R
spellingShingle	monitoring performance playing position RPE youth player Medicine R Hadi Nobari Masoud Kharatzadeh Sara Mahmoudzadeh Khalili Jorge Pérez-Gómez Luca Paolo Ardigò Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season
description	Excessive daily training load (TL) can affect the musculoskeletal system health of youth elite soccer players. The purposes of this study were (i) to describe the TL and session rating of perceived exertion (s-RPE) throughout the competition season; (ii) to analyze the weekly (w) differences of acute (daily) workload (wAWL), chronic workload (wCWL), acute–chronic workload ratio, training monotony (wTM), and training strain (wTS) among three periods over the season (early-, mid-, and end-season) by playing position; and (iii) to compare the TL variables during competition periods for the whole team. Twenty young elite soccer players in the under-14 category participated in this study. The game positions were considered as six wide defenders and wide midfielders (WM), five central defenders and central midfielders, and four strikers (ST). Daily monitoring was continued for 26 weeks during a full competition season. According to the league schedule, the season was divided into three periods: early-season from w1 to w8, mid-season from w9 to w17, and end-season from w18 to w26. The main results were that the higher TLs were detected in the early- and mid-season. There was a wAWL and wCWL decrease for all playing positions from early- to mid- and end-season, but the wCWL change was significant only from early- to mid-season (<i>p</i> ≤ 0.05). For all playing positions but ST, there was a considerable wTM increase from early- to mid-season. When compared with all other playing positions in terms of wAWL and wCWL, WM showed significantly greater values (<i>p</i> ≤ 0.05). Throughout the season periods, all workload indicators showed a considerable reduction, although there was a significant increase in the three other workload-derived variables (all with <i>p</i> ≤ 0.05) and namely: (i) wACWLR from mid- to end-season; (ii) wTM from early- to mid- and end-season; and (iii) wTS from early- to mid-season. Daily training load and s-RPE had significant fluctuations during all macrocycles of the competition season (<i>p</i> ≤ 0.05). In addition, in the mid-season, wTM and wTS were higher. Training load monitoring (in terms of, e.g., wAWL, wCWL, and s-RPE) could be the key for coaches of soccer teams to prevent overtraining and injury, especially in U-14 players, who are more susceptible to being affected by high workload.
format	article
author	Hadi Nobari Masoud Kharatzadeh Sara Mahmoudzadeh Khalili Jorge Pérez-Gómez Luca Paolo Ardigò
author_facet	Hadi Nobari Masoud Kharatzadeh Sara Mahmoudzadeh Khalili Jorge Pérez-Gómez Luca Paolo Ardigò
author_sort	Hadi Nobari
title	Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season
title_short	Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season
title_full	Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season
title_fullStr	Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season
title_full_unstemmed	Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season
title_sort	fluctuations of training load variables in elite soccer players u-14 throughout the competition season
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9049b3dd5b1647e0bda0995cb3fdc2d6
work_keys_str_mv	AT hadinobari fluctuationsoftrainingloadvariablesinelitesoccerplayersu14throughoutthecompetitionseason AT masoudkharatzadeh fluctuationsoftrainingloadvariablesinelitesoccerplayersu14throughoutthecompetitionseason AT saramahmoudzadehkhalili fluctuationsoftrainingloadvariablesinelitesoccerplayersu14throughoutthecompetitionseason AT jorgeperezgomez fluctuationsoftrainingloadvariablesinelitesoccerplayersu14throughoutthecompetitionseason AT lucapaoloardigo fluctuationsoftrainingloadvariablesinelitesoccerplayersu14throughoutthecompetitionseason
_version_	1718412056491720704

Fluctuations of Training Load Variables in Elite Soccer Players U-14 throughout the Competition Season

Ejemplares similares