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Exercise and Fitness

Heart rate



Hi- I teach aerobics. I am 24 weeks pregnant. At times during a class my heartrate goes to 150-170, I am okay, and do not feel faint or any discomfort. Is this ok? Am I hurting the baby?


Congratulations on your pregnancy and keeping up with your regular exercise routine!  The American College of Obstetricians and Gynecologist (ACOG) guidelines for pregnant exercisers recommends the maternal heart rate not exceed 140bpm (beats per minute).  According to ACOG, women who were fit before pregnancy can safely maintain their level of fitness throughout pregnancy by exercising moderately.  I would advise you to check with your obstetrician for their recommendation about heart rate guidelines during your pregnancy.

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Response by:

Rachael   Dotson, BS Rachael Dotson, BS
Program Manager
Certified Johnny G Spinning Instructor
Fitness Center at CARE\Crawley
University of Cincinnati