Variations of training load, monotony, and strain and dose-response relationships with maximal aerobic speed, maximal oxygen uptake, and isokinetic strength in professional soccer players

Autoři: Filipe Manuel Clemente aff001;  Cain Clark aff003;  Daniel Castillo aff004;  Hugo Sarmento aff005;  Pantelis Theodoros Nikolaidis aff006;  Thomas Rosemann aff007;  Beat Knechtle aff007
Působiště autorů: Polytechnic Institute of Viana do Castelo, School of Sport and Leisure, Melgaço, Portugal aff001;  Instituto de Telecomunicações, Delegação da Covilhã, Covilhã, Portugal aff002;  Faculty of Health and Life Sciences, Coventry University, CV1 5FB, Coventry, United Kingdom aff003;  Faculty of Health Sciences, Universidad Isabel I, Burgos, Spain aff004;  Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal aff005;  Exercise Physiology Laboratory, Nikaia, Greece aff006;  Institute of Primary Care, University of Zurich, Zurich, Switzerland aff007;  Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland aff008
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: 10.1371/journal.pone.0225522


This study aimed to identify variations in weekly training load, training monotony, and training strain across a 10-week period (during both, pre- and in-season phases); and to analyze the dose-response relationships between training markers and maximal aerobic speed (MAS), maximal oxygen uptake, and isokinetic strength. Twenty-seven professional soccer players (24.9±3.5 years old) were monitored across the 10-week period using global positioning system units. Players were also tested for maximal aerobic speed, maximal oxygen uptake, and isokinetic strength before and after 10 weeks of training. Large positive correlations were found between sum of training load and extension peak torque in the right lower limb (r = 0.57, 90%CI[0.15;0.82]) and the ratio agonist/antagonist in the right lower limb (r = 0.51, [0.06;0.78]). It was observed that loading measures fluctuated across the period of the study and that the load was meaningfully associated with changes in the fitness status of players. However, those magnitudes of correlations were small-to-large, suggesting that variations in fitness level cannot be exclusively explained by the accumulated load and loading profile.

Klíčová slova:

Body limbs – Exercise – Experimental design – Heart rate – Oxygen – Oxygen consumption – Sports – Torque


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