Health & Exercise

Heart rate during exercise

Hey ladies.. :)
Prior to getting pregnant I was working out 5 days a week for about an hour each time...kickboxing, zumba, elliptical plus weight training.  Since getting pregnant, I've been working about 4 days per week at an hour each time, but only on the elliptical machine.  I notice that when I'm on the elliptical machine my heart rate gets up pretty high (as high as 180)... I don't feel winded when this happens.  Is there a target heart rate that I should be aiming for or stay under?  I don't want to hurt my LO. 

Thanks!

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Re: Heart rate during exercise

  • My trainer told me to aim to keep my HR at or near where it was during my pre-pregnancy workouts.  I try to maintain my HR from 145-155 while exercising.  

    From what I understood, it's perfectly fine to continue with any fitness/exercise routine that your body was used to before pregnancy.  It's best not to add exercises or try new routines while pregnant.  This might not be accurate, but it's the rule that I've been following so far.

    It took me a long time to realize that I was more tired/drained from my workouts than normal.  That was the hardest part for me to get used to! 

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  • My Doctor told me that I could keep up with my regular routine, but to not let my heart rate get up above 140. He said it's a conservative estimate, but if you get your HR too high then it can impede the blood flow to the baby.
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  • I was also told 140 (although I've read it can be safe a little higher for those who were very fit prior to pregnancy)...LO heartrate is already much higher than yours, so when yours goes up it has an impact on them, can impact bloodflow etc.  Moreover, working to exhaustion or overexerting yourself can devote more energy to you and less to baby as it was explained to me.  Finally, you need to be careful because you will tire more readily and the hormones make you more susceptible to injury
  • I asked my OB this on Tuesday as I am continuing to go to Zumba a few times a week and am 21 weeks now. 

    She said no reason to wear a HR monitor or anything.  As long as I can talk during exercise, then all is well.  So, since you were pretty active prior to pregnancy, I would continue doing what feels good. 

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  • I personally try to stay under 160 (mainly during spin class) and just tone down the intensity as I'm not going for fat loss right now.
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  • imagemmooki:

    She said no reason to wear a HR monitor or anything.  As long as I can talk during exercise, then all is well.  So, since you were pretty active prior to pregnancy, I would continue doing what feels good. 

    These are the current ACOG guidelines. The 140 is very outdated information. If you're not feeling winded or tired you're probably fine. And that can vary from day to day. When I was pregnant some days my hr would be 180 and I'd be fine. Other days 120 would be pushing it. Just listen to your body.
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  • My doc says 140 but she's very conservative. I keep it under 160. I'll up the intensity till I get there, then bring it down to 130 then back up. Works for me. The idea of keeping it at 155-160 for longer then a min worries me.
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  • Any heart rate monitor recommendations? I take a variety of group classes 5-7 days/week right now, some of which are pretty intense and I do want to keep an eye on it properly once we get pregnant (still TTC).
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  • I agree that the 140 is very outdated and so does my OB.  As long as you can say a complete sentence, are doing workouts that your body is used to, and scaling it back if your body tells you to, you should be fine.
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