ERIC Number: EJ740867
Record Type: Journal
Publication Date: 2005
Pages: 4
Abstractor: ERIC
ISBN: N/A
ISSN: ISSN-0892-4562
EISSN: N/A
Exercise and Fluid Balance Update
Schlicht, Jeff
Strategies: A Journal for Physical and Sport Educators, v19 n2 p7-10 Nov-Dec 2005
One common piece of advice that exercise professionals give their clients is to drink water before, during, and after exercise. During exercise people can lose as much as three liters of water per hour (about 100 ounces) through sweat. Dehydration alters normal sweat patterns, which can lead to an increased core body temperature. Since most of the water that humans sweat comes from the blood, circulation can also be compromised if sweating continues and no liquid is ingested to replace it, because blood volume will decrease. As blood volume decreases, it becomes harder to move heat from the interior of the body to the capillaries under the skin, where heat can radiate out. This leads to further heat storage in the body. As the core temperature of the body rises, the potential for serious health side effects, such as heat exhaustion and heat stroke, increases. Certainly, the advice to replace water lost during exercise is sensible. There has been debate among exercise scientists regarding the proper recommendations for fluid replacement in exercising individuals. Two topics in particular have received significant attention. One issue is whether people are being told to drink too much water before, during, and after exercise. The other issue involves the effect of caffeine on water loss. This article will discuss the facts surrounding these issues, so that physical and sport educators can be properly informed. (Contains 2 tables.)
Descriptors: Exercise, Water, Metabolism, Physical Education Teachers, Health Promotion, Athletic Coaches, Athletes
American Alliance for Health, Physical Education, Recreation and Dance. 1900 Association Drive, Reston, VA 20191. Tel: 800-213-7193; Fax: 703-476-9527; Email: info@aahperd.org; Web site: http://www.aahperd.org.
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A