Defecation enhances cerebral perfusion and delays fatigue in elite triathletes

Rectal distension increases regulatory burden to autonomic nervous system in the brain. To determine the effect of rectal defecation on endurance performance and blood supply to the prefrontal brain and sub-navel regions of elite triathletes. Thirteen elite triathletes completed a cycling time trial...

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Veröffentlicht in:	Journal of the International Society of Sports Nutrition 2023-12, Vol.20 (1), p.2206380-2206380
Hauptverfasser:	Wei, Chen-Chan, Condello, Giancarlo, Yang, Ai-Lun, Yu, Szu-Hsien, Liao, Yi-Hung, Chen, Chung-Yu, Hsu, Chi-Chieh, Huang, Chi-Yang, Kuo, Chia-Hua
Format:	Artikel
Sprache:	eng
Schlagworte:	abdominal distension Cerebrovascular Circulation constipation dantian Defecation Exercise - physiology Fatigue gut-brain axis Humans Oxygen Consumption - physiology stool Triathlon
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Beschreibung
Zusammenfassung:	Rectal distension increases regulatory burden to autonomic nervous system in the brain. To determine the effect of rectal defecation on endurance performance and blood supply to the prefrontal brain and sub-navel regions of elite triathletes. Thirteen elite triathletes completed a cycling time trial (80% VO ) under defecated and non-defecated conditions, using a counterbalanced crossover design. Oxygenation and blood distribution in prefrontal brain and sub-navel regions were monitored by near-infrared spectroscopy (NIRS) during cycling. Defecation moderately decreased systolic blood pressure (-4 mmHg,
ISSN:	1550-2783 1550-2783
DOI:	10.1080/15502783.2023.2206380