Chapter Four Guidelines for Exercise Exercise is to the body as reading is to the mind. G. Legman

Vocabulary An increase in body temperature with a reduction of body fluids heat-related problem in which certain muscles contract involuntarily and cause pain condition characterized by profuse sweating, dizziness, and extreme weakness medical emergency characterized by hot, dry skin and a rising body temperature excessive decline in body temperature hyperthermia — heat cramps — heat exhaustion — heat stroke — hypothermia —

What to Wear zComfortable, supportive shoes zGood fitting socks zLight-colored shirts in breathable materials zLoose shorts

Preventing Heat Illnesses zWear light-colored, lightweight clothes zDo not wear rubberized suits zDrink fluids often zWear a hat

Precautions in Cold Weather zWear thermal under- and outerwear zWear gloves, face masks, hats zLayer clothing zDon’t overdress zWear water-resistant outerwear

Warming Up zLasts 10 to 15 minutes zPrepares the body for action

Benefits of Warming Up zMentally focus your effort and promotes movement. zIncrease heart rate and blood supply to muscles.

Cooling Down zLast 10 to 15 minutes zAllows body to return to normal

Benefits of Cooling Down zPrevents blood from pooling in muscles zPrevents muscle soreness

Study Question The process of warming-up is important because it A. generates heat in the muscle and joint tissues. B. helps to make you feel like moving vigorously. C. increases the blood supply to your muscles. D. involves all of the above benefits.