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. 2024 Oct 10;13(20):6026.
doi: 10.3390/jcm13206026.

The Effect of Four-Month Training on Biochemical Variables in Amateur Cross-Country Skiers

Natalia Grzebisz-Zatońska  1
Affiliations

The Effect of Four-Month Training on Biochemical Variables in Amateur Cross-Country Skiers

Natalia Grzebisz-Zatońska. J Clin Med. .

Abstract

Background/Objectives: Research on the effects of training on the health of amateur cross-country skiers remains limited, particularly on biochemical parameters. Therefore, this study aimed to assess such changes in response to four months of training for amateur cross-country skiers. Methods: Blood samples were collected after spring training in May (active rest) and in September at the end of the preparatory period. The Wilcoxon signed-rank test was used for comparison of both measurements (initial and final). Results: Training in a group of amateur cross-country skiers exerts a statistically significant influence on the decrease in leukocyte count (thousand/µL) (p = 0.045) and the decrease in mean corpuscular hemoglobin concentration (MCHC) (g/dL) (p = 0.021). The other parameters did not show statistically significant changes. Conclusions: The change in MCHC and WBC can be attributed to adaptation to prolonged exercise, with a simultaneous increase in VO2 max. It should not be identified with pathology. The decrease in MCHC was likely attributable to changes in hydration status and a slight reduction in hemoglobin concentration. Similarly, it is recommended that other biochemical parameters be within the reference ranges.

Keywords: biochemistry; cross-country skiing amateur; morphology; training.

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Conflict of interest statement

The author declares that there is no conflict of interest regarding the publication of this article.

Figures

Figure 1
Figure 1
Summary of training loads in hours.
Figure 2
Figure 2
Summary of comprehensive loads in hours and intensity.
Figure 3
Figure 3
Targeted loads in hours per month and intensity.
See this image and copyright information in PMC

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