Debunking Two Common Myths About Prenatal Exercise

If you’re pregnant and looking to stay physically active, you’ve probably come across a lot of information about exercise during pregnancy, some of which can be confusing or even misleading. In this article, we'll focus on two of the most common misconceptions that frequently appear in searches and provide you with accurate, up-to-date information based on guidelines from the American College of Sports Medicine (ACSM) and the American College of Obstetricians and Gynecologists (ACOG).

Misconception #1: "You shouldn't start exercising if you weren't active before pregnancy"

One of the most persistent myths about prenatal exercise is that if you weren't physically active before pregnancy, you shouldn't start during pregnancy. This misconception can prevent many moms-to-be from reaping the benefits of exercise during pregnancy. Back in the day guidelines were much more conservative out of caution and frankly because the research just hadn’t been done. However, both the American College of Obstetricians and Gynecologists and the American College of Sports Medicine encourage people with uncomplicated pregnancies to engage in regular physical activity, regardless of their pre-pregnancy fitness level. These expert obstetric and exercise organizations are very clear about the benefits of prenatal exercise which include preparing your body for the physical demands of pregnancy and childbirth, better weight management, reduced risk of gestational diabetes, and enhanced mental well-being.

You might find that pregnancy it’s an ideal time for you to start an exercise program. It’s a time in your life when you’re pausing to think about wellness, consider your health, and begin to adapt your habits and schedule. Exercise and physical activity can be incorporated into those thoughts and you can begin to prioritize physical activity as you make changes.

If you are new to exercise or haven’t been exercising consistently, the first step is shifting your mindset. Exercise should be used to support your pregnancy, so past exercise goals or routines may not apply to this stage of your life. Secondly, when you’re ready to get started, you should approach it as a gradual progression. This means little by little you’ll increase the duration of your workouts, the intensity, and the challenge level of exercises. You can begin with as few as 5 minutes of mobility each day and move toward being physically active for 30 minutes most days of the week. 

As always, your healthcare provider should be your resource if you’re concerned that you have complications or contraindications to exercise. However, if you have a healthy and uncomplicated pregnancy, I’d like you to get moving!

Misconception #2: "You should keep your heart rate below 140 bpm while exercising"

Another common misconception is the outdated guideline that pregnant women should keep their heart rate below 140 beats per minute (bpm) while exercising. This advice, once widely promoted, is no longer supported by ACOG or ACSM. No one "target" heart rate is appropriate for all pregnant moms.

Instead, both ACOG and ACSM recommend that pregnant women engage in moderate-intensity exercise, which can be gauged by the "talk test" – being able to carry on a conversation while exercising, but not being able to sing. This level of intensity typically corresponds to a heart rate of 60-80% of your maximum heart rate, which varies depending on your age and fitness level. However, this guidance is not a “maximum” and it is not to create fear of going over that moderate intensity. Many elite athletes work at higher intensities, and research shows that HIIT exercise is safe for moms and babies. So rather than focusing on or fearing the heart rate, or number, focus on getting your body moving at a moderate intensity.

Hopefully, these two misconceptions about prenatal exercise will continue to dissipate so more moms embrace physical activity during pregnancy. By understanding that it's safe and beneficial to start an exercise program during pregnancy, even if you weren't previously active, and by focusing on moderate-intensity exercise rather than a specific heart rate limit, you can confidently use exercise as a tool in your prenatal care plan. Use the power of exercise to feel strong and confident throughout each trimester!

If you’re looking for tips to get started, download 5 Tips to a Strong Core.

How To Start Working Out: Framework for Moms

Whether you’re pregnant and want to begin exercising to have a more comfortable pregnancy or a new mom ready to focus on fitness again, with all of the apps and internet clutter it can be hard to figure out where to begin. That is why I’m sharing the method I developed and have used with hundreds of moms and moms-to-be. It’s called Core, Function & Fitness (CFF). CFF is an approach. It’s a strategy. It’s a guide to help you determine where to begin your fitness journey and a framework to help you prioritize what to focus on during your workouts.

Whether you’re pregnant and want to begin exercising to have a more comfortable pregnancy or a new mom ready to focus on fitness again, with all of the apps and internet clutter it can be hard to figure out where to begin. That is why I’m sharing the method I developed and have used with hundreds of moms and moms-to-be. It’s called Core, Function & Fitness (CFF). CFF is an approach. It’s a strategy. It’s a guide to help you determine where to begin your fitness journey and a framework to help you prioritize what to focus on during your workouts.

The Foundation

During and after pregnancy, the foundation of your fitness program should be core strength and function. Core refers to the 360-degree cylinder from your diaphragm to your pelvic floor, including both abdominal and back muscles. A functional core means that your deep stabilizing muscles activate to support your spine before any movement. A functional core also means, you know how to breathe (exhale on exertion) with movement, and that you’re treating any pelvic floor concerns like tight pelvic floor muscles or urinary incontinence. A strong and functional core will enhance your ability to advance in exercise and will make daily life more comfortable.

If we look at CFF as a pyramid, “core” is the base layer and what you’ll prioritize when you begin an exercise program. This doesn’t mean that core needs to be your only focus, but if you’re short on time or searching for workouts, this will help you strategize and select the correct exercises. If time and energy aren’t an issue you can certainly do workouts that are more than core, but keep in mind that if your core isn’t yet strong and functional, you’ll want to ensure any other formats of exercise you’re choosing don’t require more core strength then you presently have.

For example, if you’re pregnant and beginning an exercise program, you can focus on breathing and engaging your abs with each movement you perform. So if you’re doing squats, lunges, and arm exercises, rather than just going through the motion, you’re exhaling on exertion or engaging the deep abs as you curl the dumbbell during a biceps exercise.

Middle of the Pyramid

So now that you’ve spent some time activating your pelvic floor, deep abs, and using your breath, you’re ready to shift your focus to “function”. The term functional training is a bit trendy so I’ll provide you with my simple definition. Functional training is performing exercises that help you meet the physical demands in your life. This means factoring in the type of job you have, the workouts you plan to do, or the physical demands of caring for your child at different stages. During pregnancy functional training can be performing exercises that help you better adapt to the changes your body is experiencing, like strengthening your back because you’re being pulled forward due to the weight of your breasts and belly. Function is the next step in my model because you should be able to feel good moving through your daily life before setting more lofty fitness goals (for example if your back hurts every time you lift your child, doing an hour spin class maybe shouldn’t be your priority). Functional training also means addressing pain and specific weaknesses. It is easier to attain function when you have a strong core, so for that reason “function” sits on top of the “core” layer in my pyramid.

Top of the Pyramid

You’re ready to move up the pyramid when you have a solid core foundation and you’re functionally moving well during the day and your workouts. “Fitness” is the top piece and refers to goals such as muscle definition, weight loss, sports performance, and running. This is the last step along the CFF progression because you’ll have a better chance of achieving fitness when you effectively know how to engage your core and you know how to perform exercises correctly and without pain. I’ll reiterate that it doesn’t mean that you have to wait to set your fitness goals, but increasing your run distance shouldn’t be the priority before you’ve spent time on the other components. When you move to the top of the pyramid, the idea is that you’ve already set yourself up to achieve your specific fitness goals.

For example, if you do have a goal to run postpartum, you can first focus on making sure your core can support proper running form, and that your pelvic floor muscles can handle the impact and load. Functional training might include single-leg strength activities so that when you do run, your body is better prepared. 

Summary

I developed the Core, Function and Fitness method to help you prioritize your efforts, and make workout selection less overwhelming. The pyramid can also be explained as a pie chart with the percentages of core, function and fitness components shifting as your needs are being met. Maybe you’re starting with core being 80% of the chart because you just had a baby, but after a few months of training, core might then become just 30% and fitness taking the majority. This pie chart is a good visual because it emphasizes that you’re never solely focusing on just one thing. All components are important and will be integrated into your plan.

Whether you like the pyramid or the pie chart, the main point I'm making is that this is a tool that can keep you active through all 40 weeks of pregnancy, and help you feel stronger than ever after having a baby.