One of the latest papers published by our group (Emily Watkins, Mark Hayes, Peter Watt, & Alan Richardson) is from a national UK fire fighter and fire instructor survey on their current heat exposure practices and health. The full text is available here.
Research by Emily Watkins into practical pre-cooling methods for PPE wearers during severe heat exposure was published in Applied Ergonomics today (15/2/18). Pre-cooling is a method used to reduce core temperature, heart rate, and the sensation of being hot when individuals are exposed to hot environments. The aim is to reduce core temperature before the heat exposure, meaning an individual will stay at a safe core temperature for longer. In our previous study “Fire Service Instructors’ Working Practices: A UK Survey” it was indicated that few instructors used pre-cooling and those that did were using a variety of methods. This study aimed to assess three practical pre-cooling methods currently being used by instructors, to identify which method is the most beneficial in terms of reducing physiological and perceptual strain experienced from a heat exposure. Inflammatory responses were also investigated, as they can be markers of an increased risk of a cardiovascular event. The pre-cooling methods used were ice slurry consumption, phase change vest, and forearm cooling.