Kinesiology 3339A/B Lecture Notes - Lecture 26: Semipermeable Membrane, Headache, Protoplasm

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 3339A/B
• Professor: Peter Lemon

Document Summary

Fluids (water: 50-70% of body mass (weight); is essential for life. All body fluids consumed not only water. Contributes to 50-70% of body mass depending on age and gender and how much fluid consumed. Fatter you are, lower %age of water in tissue because fat doesn"t contain water. 50-70% of body mass depending on age, gender, and fluid consumption: decrease in body fluids (hypohydration or dehydration) affects exercise performance adversely (as little as 2%; 2-3 lb) Small losses in body water adversely affect endurance and strength performance exercise for 1 hour and easily loose more than 2% If not attempting to replace it, over the course of exercise bout, ability to perform is decreased as you become dehydrated (hypo hydration) Hypo= less than: sweat losses can approach 2 l/h and can be life threatening via effects on ability to regulate body core temperature.