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I was wondering would you please explain to me in a simple way that I can understand: wot is a blister?


I assume you are talking about a blister on your foot from walking. They are caused by the same thing that causes skin to blister from a burn -- heat. The heat on the skin of your feet is caused by friction. Usually, blisters start when your sock gets slightly damp, making it kind of sticky. A sock that is completely dry or soaking wet is slick enough to slide on the skin without building up heat from friction. Double layered socks have worked well for me in avoiding blisters.

The blister itself is just a build-up of fluid under the skin, making it painful to walk. Carefully puncturing the blister at the edge and draining the fluid often reduces the pain one experiences, and keeping it clean will help it heal faster.


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Scott Demaree


I can answer questions about training, physiology, nutrition, technique, equipment and injury prevention. My background is not medical, so I will not be able to answer detailed questions about injury treatment. However, during 30 years of endurance exercise I have had a few injuries so I feel qualified to talk about things that have worked for me and others.


I have been a long distance runner since 1978 and took up racewalking in 1982. More recently, I have worked as a certified personal trainer helping people with a wide range of exercise needs. Last year, I coached several people to successfully finish the Breast Cancer 3-Day Walk in Dallas (60 miles in three days).

American College of Sports Medicine, American Council on Exercise, National Science Teachers Association

Journal articles associated with my graduate work with me as the primary author were published in the Journal of Nutrition, Acta Physiologica Scandanavica. Additionally, I co-authored the chapter on exercise metabolism in ACSM's Resource Manual for Guidelines for Exercise Testing and Prescription, 4th Edition. Finally. I co-authored a book for beginning marathon runners (Marathoning 101).

I have recent Master's degrees in Exercise Science from Wichita State University and Nutrition from Texas A&M University.

Awards and Honors
I won national championships in the 1986 100-Kilometer Racewalk and the 1989 24-Hour Run.

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