In the study, the group exposed to hot conditions drank twice as much liquid as the control group, including the day before the exercise.
Notes on verification
Core quantitative finding (doubled fluid intake in heat-exposed group) is confirmed by the peer-reviewed PLOS ONE study abstract. The specific 'day before exercise' detail comes from a researcher's characterization in a news article and lacks direct verbatim confirmation in the primary source, though it is plausible given related methodology in companion papers. [tier=silver indep_score=1.0 clusters=2 claim_tier=notable | framework convergence=single on Larsen et al. 2015 PLOS ONE study (Deakin University / Bushfire Cooperative Research Centre) (upstreams: Larsen B, Snow R, Vincent G, Tran J, Wolkow A, Aisbett B (2015) PLOS ONE study 'Multiple Days of Heat Exposure on Firefighters' Work Performance and Physiology') — publishers independent, evidence may not be | kind=empirical eligibility=high]
Sources
- Firefighters know how to look after themselves to prevent heat exhaustion - ABC News (seed:sports_and_combat)
- https://pubmed.ncbi.nlm.nih.gov/26379284/ (corroboration)
- https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0136413 (corroboration)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4574983/ (corroboration)