New inflammatory and oxidative stress-based biomarker changes in response to a half-marathon in recreational athletes.

The Journal of Sports Medicine and Physical Fitness
Cristina VassalleAlessandro Pingitore

Abstract

Modulation of oxidative stress/inflammation during exercise may have both positive and negative health effects, depending by a number of factors (e.g. training status, and exercise type, intensity and duration) and the oxidative stress or inflammation-related biomarkers considered, which may reflect different levels of the oxidative stress/inflammatory multi entities. The aim of this study was to evaluate oxidative stress and inflammatory multi-biomarker panel in response to a half-marathon during early and delayed recovery. Blood samples (baseline, postrace within 20 min after the race end, and 24 h and 48 h after the run) from runners (N.=31, 20 males, mean age 47±6 years) were assessed for reactive oxygen species (ROM assay) and total antioxidant capacity (OXY test), leukocyte telomere length (LTL), procoagulant activity of circulating microparticles (MP-PCA), inflammatory parameters obtained by hemocrome, and irisin. A significant decrease for OXY (from 375±71 to 280±66, 239±54, 239±45 µmolHClO/mL) after the half-marathon and during recovery was observed. A reduction for ROMs was also evidenced respect to baseline (from 328±46 to 301±39, 290±56, 320±55 AU). Instead, MP-PCA increased after the race (from 6.2±6 to 10.5±6, 7±4...Continue Reading

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