INFLUENCE OF INTENSE PHYSICAL TRAINING ON FACTORS RELATED TO THE MICROCIRCULATION IN PENTATHLETES
DOI:
https://doi.org/10.12957/demetra.2013.9224Abstract
The microcirculation is the segment of the circulatory system responsible for ensure the offer of nutrients, oxygen and hormones to the tissues. Beyond to removing products from cell metabolism and maintenance of body temperature. Physical activity is able to alter the body composition and the antioxidant capacity and the both being able to influence the parameters of microcirculation. Among the techniques used to evaluate microcirculation, the videocapillaroscopy is a validated method used to determine the morphology and functionality of capillaries in different groups, including athletes. Little is known about the changes of microcirculation parameters due to intense training. The aim of this study was to evaluate the influence of intense physical training on body composition, biochemical markers of muscle damage and antioxidant status and their effects on parameters of microcirculation in pentathletes. Participated in this study young male competitive pentathletes (n=8, mean age 26,8 ± 4,8 years) in two moments, the first after resting (Baseline), previous the competition, and the second after 60 days (T1) of intense physical training. The microcirculatory parameters were evaluated by periungeal videocapillaroscopy. The antioxidant extracellular capacity was determined by plasmatic uric acid and biological antioxidant potential concentrations, and the intracellular by erythrocyte superoxide dismutase concentration. As an indicator of lipidic peroxidation was used the plasma malondialdehyde concentration, and for tissue damage plasmatic total creatina kinase and urea. Total and fractions body composition was determined by Dual-energy X-ray absorptiometry. To evaluate the energy homeostasis was measured leptin concentrations. There was reduction in total fat mass (Baseline: 12.3 (7.3 - 14) / T1: 10.1 (7.4 - 14) kg, p=0.023), fat arms (Baseline: 1.1 (0.7 – 1.5) / T1: 0.9 (0.7 – 1.6) kg, p=0.039) and trunk (Baseline: 5.6 (3 – 6.6) / T1: 4.4 (2.9 – 6.3) kg, p=0.008). There was a reduction in leptin concentrations (Baseline: 1.95 (1.06 – 2.45) / T1: 1.29 (0.49 – 1.75) ng/mL, p= 0.016) and this was not associated with a reduction in fat mass There was observed increase in concentrations of plasma creatina kinase (Baseline: 94.50 (69.00 – 141.00) / T1: 137.00 (97.00 – 250.00) UI/L p=0.023) and urea (Baseline: 31.50 (26.00 – 51.00) / T1: 36.50 (29.00 – 39.00) mg/dL p=0.031) indicating tissue damage. The percentage variations of creatine kinase and funccional capillary density were positively correlated (r = 0,714, p = 0,037). The intense physical training wasn’t change the antioxidant status, as well as the microcirculation parameters. Among the indicators studied, only the concentration of plasmatic creatine kinase appears to be involved with the reduction of functional capillary density in 5 of 8 athletes.
Downloads
Published
How to Cite
Issue
Section
License
STATEMENT OF AUTHORSHIP RESPONSIBILITY
Title of the manuscript:
________________________________________________________
1. Statement of responsability
I certify that I have participated in the work above specified and take public responsibility for its content.
I certify that the manuscript represents an original work and that none of the material in the manuscript has been previously published, is included in another manuscript, or is currently under consideration for publication elsewhere, whether in printed form or in electronic media, except that described in the attachment.
In case of acceptance of this text by Demetra: Alimentação, Nutrição & Saude, I declare to be in accordance with the policy of public access and copyright adopted by Demetra, which provides as follows: (a) the authors retain the copyright and grant to the Journal the right of first publication, the work being simultaneously licensed under the Creative Commons Attribution License, which allows the sharing of the work with acknowledgment of authorship and initial publication in this journal; (b) authors are authorized to enter additional contracts separately for non-exclusive distribution of the version of the work published in this journal (eg, publishing in institutional repository or book chapter), with acknowledgment of authorship and initial publication in this journal; and (c) authors are permitted and encouraged to post and distribute their work online (eg, in institutional repositories or on their personal page) at any point before or during the editorial process, as this may lead to productive changes, as well as increase the impact and citation of the published work.
2. Conflict of Interest Statement
I certify that there is no conflict of interest in connection with the submitted article.
Date, signature and full address of all authors.
