Kinesiology 2236A/B Lecture Notes - Lecture 21: Pedialyte, Water Intoxication, Glycogen

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2236A/B
• Professor: Dave Humphreys

Document Summary

At atmospheric temperature increases, the temperature gradient between air and body decreases. When t(body) > t(environment) we lose heat via radiation. Over 27deg c (80deg f) the body absorbs heat. Heat is generated internally by endogenous sources. Heat is gained internally from exogenous sources. Transfer to body when t(environment) > t(body) When an athlete exercises in a hot environment they sweat to dissipate heat. An increase in humidity will decrease the vapor gradient, therefore there will be less evaporation = increases t(body) At high humidity we have high risk of heat exertional injury. Heat cramps alteration in spinal cord reflex activity secondary to fatigue, heat or hydration not an issue. Exertional heat stroke (ehs) occurs when the patient presents with exertion related hyperthermia (core body temperature > 40degc and associated central nervous system disturbance or evidence of other and organ system damage. They first may experience dizziness, weakness, nausea, fast pulse and respiration and mental confusion.