Dr Joanne Caldwell1
1Cardiovascular and Exercise physiology at Monash University
Biography:
Dr Caldwell is a Senior Lecturer in Cardiovascular and Exercise physiology at Monash University. She is Head of the Exercise Physiology and Environmental Health Laboratory and brings extensive experience in occupational physiology. Her expertise has been crucial in developing new Physical Employment Standards for Intensive Care Flight Paramedics at Ambulance Victoria. Additionally, Dr Caldwell is deeply interested in studying how humans can adapt to rising temperatures associated with climate change.
Abstract:
The use of personal protective equipment (PPE) is essential for infection prevention and control in clinical settings, but it can significantly disrupt the body’s natural thermoregulatory mechanisms. PPE impairs heat dissipation by limiting evaporative cooling, restricting airflow, and increasing thermal insulation. These factors contribute to elevated core temperatures, dehydration, fatigue, and, in severe cases, cognitive decline.
To help reduce the physiological burden of PPE, a range of mitigation strategies can be applied. These include structured work-rest cycles, hydration protocols, cooling garments, and environmental adjustments such as improved ventilation and temperature control. Advances in PPE design also offer opportunities to improve thermal comfort without compromising safety.
This presentation explores the physiological basis of thermoregulation, examines how these processes are compromised during prolonged use of PPE, and highlights practical strategies to support safer, more sustainable PPE use in clinical environments.