Planned Physical Workload in Young Tennis Players Induces Changes in Iron Indicator Levels but Does Not Cause Overreaching

Piotr Żurek, Patrycja Lipińska, Jędrzej Antosiewicz, Aleksandra Durzynska, Jacek Zieliński, Krzysztof Kusy and Ewa Ziemann
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Piotr Żurek: Faculty of Physical Culture Gorzow, Poznan University of Physical Education, 66-400 Poznan, Poland
Patrycja Lipińska: Institute of Physical Education, Kazimierz Wielki University in Bydgoszcz, 85-064 Bydgoszcz, Poland
Jędrzej Antosiewicz: Department of Bioenergetics and Physiology of Exercise, Medical University of Gdansk, 80-211 Gdańsk, Poland
Aleksandra Durzynska: Faculty of Health Sciences, Lomza State University of Applied Science, 18-400 Łomża, Poland
Jacek Zieliński: Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, 61-871 Poznan, Poland
Krzysztof Kusy: Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, 61-871 Poznan, Poland
Ewa Ziemann: Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, 61-871 Poznan, Poland

IJERPH, 2022, vol. 19, issue 6, 1-13

Abstract: The current study aimed to examine the impact of the training load of two different training camps on the immunological response in tennis players, including their iron metabolism. Highly ranked Polish tennis players, between the ages of 12 and 14 years, participated in two training camps that were aimed at physical conditioning and at improving technical skills. At baseline and after each camp, blood samples were analyzed, and the fatigue was assessed. The levels of pro- and anti-inflammatory indicators, iron, and hepcidin were determined. The levels of the heat shock proteins, (Hsp) 27 and 70, were also measured. All the effects were evaluated using magnitude-based inference. Although the training camps had different objectives, the physiological responses of the participants were similar. The applied programs induced a significant drop in the iron and hepcidin levels (a small-to-very-large effect) and enhanced the anti-inflammatory response. The tumor necrosis factor α levels were elevated at the beginning of each camp but were decreased towards the end, despite the training intensity being medium/high. The changes were more pronounced in the female players compared to the male players. Altogether, the results suggest that low-grade inflammation in young tennis athletes may be attenuated in response to adequately designed training. To this end, the applied physical workload with a controlled diet and rest-controlled serum iron levels could be the marker of well-designed training.

Keywords: sport performance analysis; exercise testing; hepcidin; heat shock protein; overtraining; fatigue; adolescent; inflammation (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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