The Gut Microbiota characterization of a World-Class Mountain Trail runner during a complete competition season: a case report.

In the present case study, the gut microbiota (GM) profile of a male Elite Mountain Runner (34 years, 171cm, 59 kg, VO2max: 92 mL·min-1 ·kg-1) was analyzed over 5 months competitive period (6 samples). The GM diversity increased through the season coinciding higher levels to the peak performance and shorter and longer race (42 vs. 172 km) produced different phenotypic GM changes.

A Bioinformatics-Assisted Review on Iron Metabolism and Immune System to Identify Potential Biomarkers of Exercise Stress-Induced Immunosuppression.

The immune function is closely related to iron (Fe) homeostasis and allostasis. The aim of this bioinformatics-assisted review was twofold; (i) to update the current knowledge of Fe metabolism and its relationship to the immune system, and (ii) to perform a prediction analysis of regulatory network hubs that might serve as potential biomarkers during stress-induced immunosuppression. Several literature and bioinformatics databases/repositories were utilized to review Fe metabolism and complement the molecular description of prioritized proteins.

Putative Role of rs1049434 Polymorphism in High-Intensity Endurance Performance: Concept and Basis to Understand Possible Individualization Stimulus.

Monocarboxylate transporters (MCTs) have been proposed as important mediators of the exchange between lactate (La) producer and La recipient (consumer) cells. Previous studies have suggested that the A1470T genotype could be related to different physical performance phenotypes. This study followed the guidelines for Strengthening the Reporting of Genetic Association Studies (STREGA) and aimed to evaluate the distribution of the polymorphism rs1049434 in endurance-trained athletes compared to the untrained population.

Sarcopenia: Etiology, Nutritional Approaches, and miRNAs.

Sarcopenia, an age-related decline in skeletal muscle mass and function, dramatically affects the quality of life. Although there is a consensus that sarcopenia is a multifactorial syndrome, the etiology and underlying mechanisms are not yet delineated. Moreover, research about nutritional interventions to prevent the development of sarcopenia is mainly focused on the amount and quality of protein intake.

Simple anthropometry-based calculations to monitor body composition in athletes: Scoping review and reference values.

Background: Kinanthropometry offers to exercise and health professionals a standardized procedure of acquiring surface anatomical measurements that might be used to track changes in body composition.

Aim: To describe simple anthropometric indices to monitor body composition changes in amateur and elite athletes, and to provide reference values during the competition phase.

Methods: A search of articles indexed in PubMed/MEDLINE, ScienceDirect, Cochrane, and SciELO databases using the string .