Free radicals are reactive compounds that are naturally produced in the human body. They
can exert positive effects (eg on the immune system) or negative effects (eg lipids, proteins …

This article will review relevant mechanisms and markers associated with overtraining
syndrome (OTS), and discuss signs and symptoms, differential diagnosis, and current …

The purpose of this study was to examine the influence of overreaching on muscle strength,
power, endurance and selected biochemical responses in rugby league players. Seven …

Purpose This longitudinal study aimed at comparing heart rate variability (HRV) in elite
athletes identified either in 'fatigue'or in 'no-fatigue'state in 'real life'conditions. Methods 57 …

The present review focuses on the past and recent knowledge in the field of exercise
hemorheology and presents some unresolved issues for opening discussion. Acute exercise …

This study investigated changes in heart rate variability (HRV) in elite Nordic-skiers to
characterize different types of “fatigue” in 27 men and 30 women surveyed from 2004 to …

Elucidating the complex processes that determine the ability of the human body to adapt to
specific intense training programs is critical to improving athletic performance in elite …

Purpose Sleep is basic and common biological activity in human beings. Sleep is vital for
recovery for recovering or replenishments of energy loss during daily functional activities …

Alterations of blood rheology related to muscular activity have been extensively studied over
the last 20 years. It has been shown that exercise exerts a “triphasic” action on the …

Optimal tissue oxygen supply is essential for proper athletic performance and endurance. It
also depends on perfusion, so on hemorheological properties and microcirculation. Regular …