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The Relationship Between the Performance and Brain Oxygenation During Acute Supramaximal Exercise

Cagdas Guducu,C. Ş. Bediz

Published 2019 in Spor Hekimligi Dergisi

ABSTRACT

©2019 Türkiye Spor Hekimleri Derneği. Tüm hakları saklıdır. ABSTRACT Objective: The brain hemodynamic responses are one of the parameters to evaluate the physiological responses to exercise. The functional near infrared spectroscopy is one of the most promising methods for investigating the hemodynamic changes of brain during the physical performance. Higher responses can be expected in brain just after the short time high intensity exercise. In the present study, describing and investigating the brain hemodynamic responses to acute supramaximal exercise based on performance evaluation has been aimed. Materials and Methods: Physically active 36 healthy volunteer males (mean age: 20.61±2.3 years) participated to the study. Participants were split as high (HP) and low performance (LP) according to the group mean of peak power outputs. Wingate anaerobic test (WAnT) was employed as the acute high intensity exercise model. The hemodynamic changes during and after the WAnT were recorded via functional near infrared spectroscopy (fNIRS) from the prefrontal brain areas. For the statistical analyses, left, right and central prefrontal cortex defined as 3 measurement areas while during and after exercise periods were selected as 2 measurement times. Results: In both groups, the oxyhemoglobin levels of the prefrontal areas are increased during the exercise. This increase is significantly higher in the HP group in comparison with the LP group. After the exercise, the differences between the HP and LP group were disappeared. Conclusions: The brain hemodynamic responses were changed in line with the physical performance. In the future studies the brain hemodynamic changes can be used to evaluate the relationship between the training and brain hemodynamics.

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