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| Format: | Recurso digital |
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| Izdano: |
Zenodo
2026
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| Online dostop: | https://doi.org/10.5281/zenodo.18733263 |
| Oznake: |
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Kazalo:
- <p><span lang="EN-US">This article presents the phenomenon of the “second wind” as an integrative neurometabolic process rather than a simple shift from anaerobic to aerobic metabolism. It synthesizes contemporary data from physiology, biochemistry, and neuroscience to explain how peripheral and central mechanisms interact during fatigue. The paper emphasizes the role of lactate not only as an energy substrate but also as a signaling molecule involved in adaptive regulation. Special attention is given to central mechanisms, including effort perception, dopaminergic modulation, and motivational recalibration. The concept of neurometabolic synchronization is proposed to explain the subjective relief experienced during sustained exercise. The study also analyzes the post-pause “second wind” as a rapid neurophysiological reset despite incomplete metabolic recovery. A four-phase model of the phenomenon is introduced, describing metabolic imbalance, critical fatigue, neurometabolic switching, and stable adaptation. The article integrates psychobiological, neurochemical, and cardiorespiratory components into a unified systemic framework. Practical implications for sports training and clinical rehabilitation are discussed. The proposed model provides a theoretical foundation for future experimental verification using neuroimaging and metabolic approaches. </span></p> <p><strong><span lang="EN-US">Keywords:</span></strong><span lang="EN-US"> second wind; lactate shuttle; central fatigue; oxygen uptake kinetics; neurohumoral regulation; endurance.</span></p>