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- Title
Effects of Futsal Demands on Serum and Salivary Levels of Trace Elements and Minerals Detected by Total Reflection X-Ray Fluorescence.
- Authors
Padoin, Susana; de Freitas, Victor Hugo; Cleto, Daniele Aparecida Maia; Zeffa, Aline Campos; Nakamura, Fábio Yuzo; Andrello, Avacir Casanova; de Paula Ramos, Solange
- Abstract
The aim of this study was to monitor the circulating and salivary ion concentrations by total reflection X-ray fluorescence (TXRF) in futsal players submitted to the futsal-specific intermittent shuttle protocol (FISP). TXRF may allow identification of changes in ion concentrations induced by physical efforts. Saliva and blood samples of 13 male futsal players were collected before (Pre) and after (Post) the FISP. Salivary and plasma ion levels were detected by TXRF, and differences from Pre to Post (paired t test or Wilcoxon test) and correlations between both biological fluids were determined (P < 0.05). All saliva samples presented phosphorus (P), sulfur (S), chlorine (Cl), potassium (K), calcium (Ca), iron (Fe), zinc (Zn), bromine (Br), and rubidium (Rb). S, Cl, Ca, Fe, Cu, Zn, Br, and Rb were detected in all blood samples. K, Cu, Br, and Rb presented reduced secretion rate from Pre to Post samples (P < 0.05). The salivary concentrations of K (r = − 0.53) and Zn (r = 0.54) were correlated with plasmatic concentrations. After FISP, salivary secretion of S (r = − 0.76), Cl (r = − 0.64), P (r = − 0.67), Mn (r = − 0.74), and Zn (r = 0.69) were correlated with plasma levels. We concluded that TXRF may be used to monitor salivary (P, S, Cl, K, Ca, Fe, Zn, Br, and Rb) and circulating (S, Cl, Ca, Fe, Cu, Zn, Br, and Rb) levels of several elements in futsal athletes. However, an acute bout of futsal-specific physical effort did not significantly imbalance ion concentrations in saliva or plasma.
- Subjects
X-ray fluorescence; X-ray reflection; INDOOR soccer; BROMINE; SALIVA; TRACE elements; SERUM; BLOOD sampling
- Publication
Biological Trace Element Research, 2020, Vol 193, Issue 1, p73
- ISSN
0163-4984
- Publication type
Article
- DOI
10.1007/s12011-019-01697-4