Monash University
L178 SnipeRhiannonPhDThesis04Feb18_Redacted.pdf (3.81 MB)

Exertional-heat stress induced gastrointestinal perturbations: Prevention and management strategies

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posted on 2019-03-27, 21:12 authored by RHIANNON MARY JADE SNIPE
This thesis explored the effects of exertional-heat stress on gastrointestinal integrity, gastrointestinal symptoms and systemic responses; and the effectiveness of novel nutrition strategies for preventing gastrointestinal perturbations. Findings show that prolonged exertional-heat stress injures the intestinal epithelium, increases gastrointestinal symptoms, and perturbs systemic responses compared to physical exertion in temperate conditions. Frequent carbohydrate and protein intake during exertional-heat stress prevents intestinal injury and reduces permeability however, protein increases gastrointestinal symptoms. Frequent cold water ingestion may attenuate intestinal injury and upper-gastrointestinal symptoms. Combining carbohydrates with cold fluids will likely be most efficacious in supporting gastrointestinal health during prolonged exertional-heat stress.


Principal supervisor

Ricardo Jose Da Costa

Additional supervisor 1

Helen Truby

Year of Award


Department, School or Centre

Nutrition and Dietetics

Campus location



Doctor of Philosophy

Degree Type



Faculty of Medicine Nursing and Health Sciences