Effects of energy drinks on biochemical and behavioural measures during fire fighting
Speaker: Sandra Sunram-Lea ( Lancaster University)
Location: Room 149, Northumberland Building, Northumbria University
Time/Date: 27th October 2010, 16:00 - 17:00
It is well established that anticipation or exposure to threats or stressors results in activation of two major endocrine systems, the hypothalamic-anterior pituitary-adrenocortical axis (HPA) and the sympatho-adrenomedullary axis (SAM axis). A major physiological role of activation of these systems is considered to be provision of additional metabolic fuel, which allows the individual to cope with an emergency energetic crisis. However, during longer-lasting stressful events this might not be sufficient for the continuing energy demands, as an increased level of physical activity might be required. This paper discusses the effects of anticipation and exposure to an acute stressor and inasmuch caffeine and glucose supplementation affect HPA axis activation and behavioural response under stressful and physically demanding conditions. Based on the results of this study, in situations of stress combined with increased physical activity, glucose supplementation might be an easy to implement and cost effective way to maintain performance levels and to ameliorate the negative effects of stress on mood.
This seminar is free and there is no need to book.
Published: 21st December 2009
