Abstract
The brain-derived neurotrophic factor (BDNF) is a crucial protein in the development of the cognitive system. It regulates the growth of neurons and glial cells, synaptic plasticity, and neuroprotection. Background/Objectives: It has been suggested that high-intensity exercise could modulate the mechanisms of BDNF release, with potentially significant implications in the professional sports world. However, this is not yet fully proven, and the underlying physiological alterations are unknown. Methods: This paper reviews the current scientific literature to clarify the uncertainties about how high-intensity physical exercise influences BDNF release and its relationship with high-performance sports. Results: Strenuous exercise appears to increase BDNF synthesis through the action of lactate and the PGC-1α/FNDC5 pathway. Additionally, cognitive function has been described as an element to consider for maximizing sports performance. Conclusions: In this regard, this review provides a solid starting point for further investigation into the molecular mechanisms that promote BDNF expression mediated by exercise, as well as for seeking a direct correlation between the role of cognitive development and athletic performance in high-performance athletes.
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