LeuCAM and reactive oxygen species during long-term exercise combined with sleep and energy deficiency

Article Abstract:

A study was conducted to determine leukocyte reactive oxygen species (ROS) levels, total plasma antioxidant status (TAS), the leukocyte expression of selected cell-bound adhesion molecules, and the plasma levels of soluble leukocyte-derived adhesion molecules during a military ranger-training course and the early recovery phase. Long-term physical activities combined with sleep- and energy deprivation during an 8-day ranger-training course suppressed the intracellular leukocyte ROS-generating capacity and nearly extinguished the surface expression of CD62L.

Norway

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Impact of repeated prolonged exercise bouts on cardiac function and biomarkers

Article Abstract:

A study determines the influence of repeated bouts of prolonged exercise on left ventricular function by echocardiographically using two-dimensional M-mode, Doppler, and flow propagation velocity and the cardiac biomarkers by analyzing blood samples. It is concluded that repeated bouts of prolonged exercise provoke short-term reductions in diastolic filling and a collective reduction in systolic function, having nominal clinical or functional implications.

United Kingdom, Heart function tests, Biological markers

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Marathon running leads to partial exhaustion of ROS-generating capacity in leukocytes

Article Abstract:

A study was conducted to investigate the changes in the leukocyte expression of reactive oxygen species (ROS) and the total blood plasma antioxidant capacity in male and female athletes after a marathon and half marathon race. The results did not see any differences in leukocyte ROS levels or ROS production capacity between those individuals who took dietary antioxidant supplements regularly and those who did not.

United States, Patient outcomes, Influence, Antioxidants, Antioxidants (Nutrients), Women athletes

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