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

Clinical Sciences at Monash Health

Additional Institution or Organisation

Nutrition and Dietetics

Campus location



Doctor of Philosophy

Degree Type



Faculty of Medicine Nursing and Health Sciences