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Post-Exercise Ketosis, Salivary Uric Acid and Interleukin-6 after a Simulated Wheelchair Basketball Match

Author(s):

Anna Raguzzini, Elisabetta Toti, Marco Bernardi, Fabio Castellucci, Valentina Cavedon, Anna Lucia Fedullo, Chiara Milanese, Tommaso Sciarra and Ilaria Peluso*   Pages 1 - 8 ( 8 )

Abstract:


Background: Interleukin (IL)-6, total antioxidant capacity (TAC) and uric acid (UA) increase after exercise in able-bodied individuals. Wheelchair Basketball Athletes (WBA), having low muscle mass, could be at risk of post-exercise ketosis.

Objective: This study aimed to evaluate the post-exercise ketosis, IL-6 and antioxidant response, in WBA of the Italian National team, after a simulated match.

Methods: Dietary intakes, Starvation Symptoms Inventory (SSI), percentage of fat mass (FM%) and basal Respiratory Exchange Ratio (RER) and Basal Energy Expenditure (BEE), were evaluated. Salivary TAC, UA and IL-6 were measured: before (PreM), at the end (EM) and 20 minutes after (PostM) the match. Capillary glucose and β-hydroxybutyrate (βHB) were monitored. Percentage of Heart Rate Reserve (%HRR) was measured to evaluate exercise intensity.

Results: WBA had low carbohydrates (43.5% of daily energy intake (En)) and high fat (36.3% En) intakes. The increase in UA at PostM correlated with En (0.810, p<0.01) and was inversely related to βHB at EM (-0.719, p<0.05). Furthermore, at PostM growing IL-6 levels correlated with BEE (0.778, p<0.05) and inversely related to FM% (-0.762, p<0.5) were found, which in turn was correlated to SSI (0.781, p<0.05). Also βHB PostM correlated with SSI (0.761, p<0.05) but was inversely related to RER (-0.745, p<0.05) and En (-0.826, p<0.01).

Conclusions: Our study suggests that some WBA should improve their dietary habit in order to prevent post-exercise ketosis and ameliorate the endogenous antioxidant response after exercise.

Keywords:

Antioxidant capacity, body composition, carbohydrates, fat, inflammation, motor impairment, Paralympics, sport.

Affiliation:

Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome,, Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome,, Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome,, Italian Wheelchair Basketball Federation (Federazione Italiana Pallacanestro in Carrozzina, FIPIC, Rome,, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona,, Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome,, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona,, Joint Veteran Center, Scientific Department, Army Medical Center, Rome,, Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), Rome



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