School staff

Josh Arnold

Photo of  Josh Arnold

PhD student

Environmental Extremes, Exercise Physiology, Combined Stressors.

Josh studied at Sheffield Hallam University, Sheffield, where he gained his BSc (Hons) in Sport and Exercise Science, then moved to Bangor University to complete his MRes Physiology of Sport and Exercise. With a research interest in environmental extremes, he has travelled extensively, including a full sailing circumnavigation around the world, cycling around Iceland and a range of other travel experiences. These have allowed him to experience a wide range of extreme stressors first hand. Climbing mountains over 6000m in Bolivia, he has experienced the extremes of cold in Iceland, extremes of heat in the South Pacific, hyperbaric pressure whilst scuba diving as well as motion based stressors associated with extensive time spent at sea. He has held roles with the MOD (officer training) and across various outdoor activities centres, requiring him to lead and instruct in these environments. 

His research seeks to investigate the impact of multifactorial extreme environments on the capacity to perform physical and cognitive tasks. For example, human activity at high-altitude typically exposes the body to low oxygen levels, solar radiation, snow, rain, exercise, cognitive load and wind; while working at sea also combines disorientation, cold water immersion, high pressure and breathing gas toxicity. Each stressor, both in isolation, but more commonly combined with other stressors, impose a complex network of cardiovascular, respiratory and neuromuscular tensions, resulting in a substantial barrier to effective human performance and health. Yet, despite the prevalence of combined stressors in nature, multifactorial and integrative research studies are often superseded by narrow, single factor investigations. Therefore, this project aims to span an array of working, sporting, recreation and clinical environments, drawing upon fundamental sciences such as exercise physiology, cognitive psychology, neurophysiology and thermoregulation to direct the research.

As well as developing an integrated perspective on the human response to extreme environmental challenges, this project will aim to advance understanding of the key factors that limit human performance.

Dr Alex Lloyd

Dr Simon Hodder

Human physiological function in multi-stressor environments.

View the DesRes 2020 online proceedings here.

Environmental Extremes, Exercise Physiology, Combined Stressors.