title: Metabolic changes during a field experiment in a world-class windsurfing athlete: a trial with multivariate analyses.
abstract: Physical exercise affects hematological equilibrium and metabolism. This study evaluated the biochemical and hematological responses of a male world-class athlete in sailing who is ranked among the top athletes on the official ISAF ranking list of windsurfing, class RS:X. The results describe the metabolic adaptations of this athlete in response to exercise in two training situations: the first when the athlete was using the usual training and dietary protocol, and the second following training and nutritional interventions based on a careful analysis of his diet and metabolic changes measured in a simulated competition. The intervention protocol for this study consisted of a 3-month facility-based program using neuromuscular training (NT), aerobic training (AT), and nutritional changes to promote anabolism and correct micronutrient malnutrition. Nutritional and training intervention produced an increase in the plasma availability of branched-chain amino acids (BCAAs), aromatic amino acids (AAAs), alanine, glutamate, and glutamine during exercise. Both training and nutritional interventions reduced ammonemia, uricemia, and uremia. In addition, we are able to correct a significant drop in potassium levels during races by correct supplementation. Due to the uniqueness of this experiment, these results may not apply to other windsurfers, but we nonetheless had the opportunity to characterize the metabolic adaptations of this athlete. We also proposed the importance of in-field metabolic analyses to the understanding, support, and training of world-class elite athletes.
authors: Laboratory of Biochemistry of Proteins, Federal University of State of Rio de Janeiro, Brazil.
authors: Nathália Maria
authors: NM
authors: Resende
authors: Anibal Monteiro
authors: AM
authors: de Magalhães Neto
authors: Flávio
authors: F
authors: Bachini
authors: Luis Eduardo Viveiros
authors: LE
authors: de Castro
authors: Adriana
authors: A
authors: Bassini
authors: L C
authors: LC
authors: Cameron
mesh_terms: D000409:Alanine / Q000097:blood; D024322:Amino Acids, Aromatic / Q000097:blood; D000597:Amino Acids, Branched-Chain / Q000097:blood; D000641:Ammonia / Q000097:blood; D056352:Athletes; D001774:Blood Chemical Analysis; D001786:Blood Glucose; D003402:Creatine Kinase / Q000097:blood; D003404:Creatinine / Q000097:blood; D004032:Diet; D019587:Dietary Supplements; D015444:Exercise; D018698:Glutamic Acid / Q000097:blood; D005973:Glutamine / Q000097:blood; D006801:Humans; D007328:Insulin / Q000097:blood; D007770:L-Lactate Dehydrogenase / Q000097:blood; D007958:Leukocyte Count; D008297:Male; D015999:Multivariate Analysis; D010710:Phosphates / Q000097:blood; D005082:Physical Exertion; D011188:Potassium / Q000097:blood; D013312:Stress, Physiological; D014508:Urea / Q000097:blood
chemical_list: D024322:Amino Acids, Aromatic; D000597:Amino Acids, Branched-Chain; D001786:Blood Glucose; D007328:Insulin; D010710:Phosphates; D005973:Glutamine; D018698:Glutamic Acid; D000641:Ammonia; D014508:Urea; D003404:Creatinine; D007770:L-Lactate Dehydrogenase; D003402:Creatine Kinase; D000409:Alanine; D011188:Potassium