The Influence of a 7-Week Preparatory Period on Hormonal and Metabolic Responses in Soccer Players / Metabolic and Hormonal Response to Training

Opaszowski Benedykt H. (), Tyc Zbigniew, Obmiński Zbigniew, Danielik Tomasz, Korkuć Marcin and Długołȩcka Barbara
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Opaszowski Benedykt H.: Institute of Sport in Warsaw, Department of Endocrinology
Tyc Zbigniew: The Josef Pilsudski University of Physical Education in Warsaw, Department of Sporting Games
Obmiński Zbigniew: Institute of Sport in Warsaw, Department of Endocrinology
Danielik Tomasz: The Josef Pilsudski University of Physical Education in Warsaw, Department of Sporting Games
Korkuć Marcin: The Josef Pilsudski University of Physical Education in Warsaw, Department of Sporting Games
Długołȩcka Barbara: The Josef Pilsudski University of Physical Education in Warsaw, The Faculty of Physical Education and Sport in Bia³a Podlaska, Department of Physiology and Biochemistry

Polish Journal of Sport and Tourism, 2012, vol. 19, issue 3, 178-183

Abstract: Introduction. The aim of the study is to evaluate the metabolic and hormonal response of soccer players to maximum effort (test for determining anaerobic threshold changes - PPA) carried out under field conditions within a training cycle, which included a preparation period of about 7 weeks. Materials and methods. In blood samples of the 20 subjects the concentrations of lactate was determined, (LA) in whole blood, also including cortisol (C), testosterone (T) and growth hormone (GH) in blood plasma, during a running exercise performed according to the formula for determination of PPA. The heart rate (HR) was recorded during the running exercise. Threshold speed was determined based on OBLA. The tests were carried out twice: at the beginning and at the end of the seventh week preparatory period. Results. The training increased the threshold speed by an average of 0.4 m/s, lower concentrations of LA during the second test and less severe changes in HR. Endurance of the tested athletes increased at more favourable hormonal response with respect to cortisol nd and GH. The endurance component in the training, in the 2nd test resulted in lower resting testosterone levels, which did not affect the metabolic balance. The ratio of testosterone to cortisol (T/C), its growth after the period of training, showed a more stable anabolic-catabolic balance, which justifies the validity of the training assumptions in this period. Conclusions. The study confirmed the usefulness of metabolic-endocrine indicators in the monitoring the physiological response of athletes to exercise, as well as beneficial changes in the process of adaptation of bodies of athletes subjected to training.

Keywords: soccer; training; alternating anaerobic threshold; lactate; hormones (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:spotou:v:19:y:2012:i:3:p:178-183:n:2

DOI: 10.2478/v10197-012-0017-y

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