Exercise During Pregnancy

by Kathy Zawadzki |   Date Released : 11 Jan 2010
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Kathy Zawadzki

About the author: Kathy Zawadzki

Kathy Zawadzki has more than two decades of experience in the health and fitness profession working as a fitness instructor, sports nutritionist, and endurance coach. Zawadzki has earned a master's degree in Exercise Science from the University of Texas and is certified by ACSM as a Health and Fitness Instructor as well as nationally certified in Pre & Post Natal Fitness. She is a licensed USA Cycling elite level coach and licensed Sports Nutritionist. Her diverse background includes working as a member of the sports science team at the U.S. Olympic Training Center in Colorado Springs, as well as running her own Stroller Strides franchise for the past five years. Zawadzki is a frequent contributor of health and fitness articles and was a contributing author for the book Food for Fitness: Eat Right to Train Right (Putman, 2004). Kathy is currently coaching and teaching for Peak to Peak Training Systems.

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Comments (5)

van der Merwe, Vanora | 19 Jan 2013, 06:40 AM

Blood volume increases during pregnancy, this starts happening DURING the first trimester. I think that is where the confusion may have come in, the way that I understand what the author is saying, is that during EARLY stages of the first trimester (initially) there is a decrease and then during the 1st trimester blood volume starts increasing. Either way, it's inportant to up the water intake.

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Bantick, Hollie | 21 Mar 2011, 10:02 AM

Does anyone know which trimester it is that abdominal exercises and lying on front and back should be avoided? Or is it all the way through something to avoid??

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Johnson, Sara | 29 Jan 2010, 15:12 PM

According to Dr. Clapp in "Exercising Through Your Pregnancy," (a must-read) blood volume WILL increase, but it takes some time. Therefore a woman will experience the "underfill" problem (arteries and veins have stretched and suddenly there is not enough blood in circulation to fill them up). That's why the article says that EARLY in pregnancy, blood volume decreases. Hormones have been released at that point and the body will eventually make more plasma- with proper fluid intake. -Sara Johnson, CPT, SCW Pre/Postnatal Fitness Specialist

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Wahoski, Regan | 28 Jan 2010, 08:57 AM

Hi Michael,
I think the article reads "unterine blood flow can decrease..." when a woman performs extreme levels of intense exercise on an inconsistant basis. While overall blood volume increases, uterine blood flow may decrease if your client is not training appropriately. Hope that helps :)

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Lucchino, Michael | 15 Jan 2010, 08:45 AM

Just curious on blood volume during pregnancy. Under the section " Monitoring Intensity", you mentioned that blood volume increase during pregnancy, and in the "Safety Consideration" section, you mentioned blood volume decreases during the early stages of pregnancy. So does blood volume decrease or increase during pregnancy?

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