Individual variability in achievement of short-term heat acclimation during a fixed intensity protocol.

Introduction: Heat acclimation (HA) occurs with ∼8-10d of repeated heat exposure; however, adaptations can occur earlier (<7d; termed short-term heat acclimation; STHA).

Purpose: To test the hypothesis that some, but not all, young healthy men would achieve STHA after 5d of a standard HA protocol.

Methods: We conducted a novel, post-hoc analysis of data from 13 healthy men (21 ± 3 yrs; 173 ± 8 cm; 75.

The Effectiveness of a Standardized Ice-Sheet Cooling Method Following Exertional Hyperthermia.

Introduction: Exertional heat illnesses remain a major threat to military service members in the United States and around the world. Exertional heat stroke (EHS) is the most severe heat illness, characterized by core hyperthermia and central nervous system dysfunction. Per current Army regulations, iced-sheet cooling (ISC) is the recommended immediate treatment for heat casualties in the field, but concerns have been raised regarding the efficacy of this approach.