Pros and Cons of Prenatal Exercise

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Prenatal exercise programs are designed to help pregnant moms stay active during pregnancy, while also considering the safety of the baby. There are obvious changes that your body goes through during pregnancy and prenatal exercise takes those into account. Let’s discuss the pros and cons of prenatal exercise, as well as when to start, and how to know if the prenatal program you’re using is a good one.

Positives

  • Promotes a healthy pregnancy: Prenatal exercise can help you reduce your risk for more serious conditions like gestational diabetes and pre-eclampsia. It can also help you ease daily complaints like constipation, lack of energy, and back pain.

  • Improve Mental Health: Exercise during pregnancy can reduce your risk for prenatal anxiety and depression, and may even decrease your postpartum risk as well.

  • Prepare for labor: Outside of the physical strength, mobility and endurance benefits of exercise during pregnancy, by feeling good in your body, you’ll feel more confident going into labor.

  • Reduces aches/pains: By strengthening and lengthening the muscles most impacted by pregnancy, your body will move and perform better. You’ll be able to avoid some of the discomforts caused by overused muscles or compensation.

  • Improve sleep: Prenatal exercise can help you get a better night of sleep.

  • Prenatal Professionals: Instructors or trainers have an understanding of what your body is going through, which can help ease your fears around doing harm to the baby by exercising.

  • Social comfort: Not only do you have the camaraderie of other pregnant moms in a prenatal class, but you don’t have to worry about keeping up during a regular fitness class, and you won’t have to constantly ask for modifications.

Negatives

  • Potential for heat stress: Your ability to regulate temperature changes during pregnancy. Although, it is unlikely that environmental heat will raise your core temperature to a level of concern, try to avoid exercise in excessively hot/humid weather, hydrate well, and wear breathable clothing to make exercise more enjoyable.

  • Access: Finding the opportunity for prenatal-specific exercise might be difficult. It might be that you don’t have any prenatal classes or exercise professionals in your area. If you do, there may be a limited number of them and your schedule may not work with their schedule.

  • Individualization: The American College of Sports Medicine prenatal exercise guidelines suggest your program be individualized for your needs during pregnancy. However, if the only training options available are large classes, or workouts led by a trainer unfamiliar with conditions you might have (like pelvic floor dysfunction), then it might be hard to feel like your program is personalized to meet your unique needs.

When should you start?

As far as exercise in general, for most people, the benefits outweigh the risks when it comes to beginning or continuing an exercise program during pregnancy. You might be tempted to wait until you speak with your OB to make sure that exercise is safe for you during pregnancy, which means you might be waiting until you're 8 weeks pregnant. My advice would be if you have concerns or contraindications, then yes, wait until you speak with your healthcare provider. However, if you’re anxious to get started or to continue with exercise and you’ve reviewed the list of safety concerns, you can always message your primary before seeing your OB, just for the reassurance that you’re safe to exercise.

During your first trimester, you may not experience many physical changes so many people assume it is too early to start prenatal-specific exercise. However, if you take into account the hormonal and emotional changes occurring, like fatigue, or stress about whether the exercise you’re choosing is OK for you to be doing, then getting into a prenatal training program earlier rather than later would be beneficial. I also believe it’s never too early to start training the muscles that will be most impacted by pregnancy. For example, you’ll want a strong core, including pelvic floor muscles, and we all know strength gains don’t happen overnight. By starting a program that considers these things, your body will be more prepared for the physical changes to come.

How do you know if your prenatal exercise program is a good one?

When you choose a prenatal exercise program, there are a few key factors to look for. First, you should verify the instructor or trainer’s credentials. Pregnancy comes with hormonal, physical, and emotional changes and the person overseeing the program should have both the education and experience in prenatal fitness. Next, your program should be designed for the pregnant mom, not modified for the pregnant mom. A basketball player doesn’t go into an exercise class with the instructor just providing modifications because of his/her height or wanting to jump higher. Instead, the basketball player has someone designing a program that is specific to their needs. Pregnancy is no different. A prenatal fitness class should look different from your pre-pregnancy class. Strength should focus on functional movements. Core training should include breathing and pelvic floor work. Intensity should vary based on your energy level. Next, a really good prenatal exercise program should allow you to discuss concerns and trimester trends. For example, if you are suffering from pregnancy heartburn, your instructor should know that certain positions might have to be avoided, and be able to give you equally beneficial training options. Lastly, exercise should help you stay active until your due date, meaning it should be a positive addition to your life. If your prenatal program is a stressor or causes you discomfort or fatigue, then it’s not right for you.

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