Heart Rate During Pregnancy: Do's and Don'ts

It’s undeniable that exercise is encouraged for moms-to-be with healthy pregnancies. The old guidelines used to specify 140 beats per minute as a heart rate max during pregnancy. We’ve since learned that is unnecessary and new guidelines will suggest moderate-intensity aerobic activity during pregnancy. You may already be aware of this, but what most pregnant people are not aware of is that monitoring heart rate is actually not that helpful during pregnancy. In an age of tracking all fitness moves, your heart rate pre-pregnancy may have been a good indicator of how hard you’re working. However during pregnancy your cardiovascular system changes. Your heart rate, blood volume, and cardiac output all increase during pregnancy. This means that your heart rate may not respond the way it used to. So what are some do’s and don’ts when it comes to heart rate during exercise when you’re pregnant?

DO: be aware if after exercising you’re still feeling out of breath or feel your heart beating fast. Just like before pregnancy, as you recover post exercise your heart rate should return close to your pre-exercise baseline.

DON’T: use a heart rate monitor to determine the aerobic intensity or feel limited by your heart rate during exercise.

DO: aim for moderate intensity, which can be determined by the “talk test” or RPE (ratings of perceived exertion"). During moderate-intensity exercise, you might feel winded, but you should still be able to hold a conversation. Ratings of perceived exertion (overall how hard it feels you’re working) correlate well with heart rate. On a scale of 1-10, you should feel at about 3-4 (moderate to somewhat hard). On the traditional Borg Scale of 6-20, you’d fall at about 12-14.

DON’T: use walks where your heart rate isn’t elevated to count toward your aerobic exercise goals. General physical activity is great and we should all probably move more during the day, but your stroll around the block with your two-year-old, most likely isn’t challenging your heart rate.

DO: discuss if moderate to vigorous exercise is appropriate for you. If you were generally consistent with exercise at higher intensities before pregnancy, your moderate baseline will be different than someone who wasn’t. As we’ve seen with many athletes, your doctor may also say it’s safe for you to work at a higher than moderate intensity.

So now that you understand a bit more about heart rate and exercise, go ahead and get moving. Strength training, walking, swimming, dancing, or the stationary bike are all great prenatal options.

Start with 5 Tips for a Stronger Core During Pregnancy!

Summer is Coming: Tips for Moms to Meet Their Fitness Goals

I’ll start with a disclaimer that I don’t love the idea of people putting pressure on themselves to up their exercise routine in preparation for summer. I firmly believe fitness is a lifestyle and the best way to sustain results is to be consistent year round. However, with that said, I also see nothing wrong with having aesthetic or other goals that make you feel confident this summer. So if you’re someone that is working toward your summer fitness goals, keep reading for a few tips.

Pregnancy Tips:

Summer can be an uncomfortable time to be pregnant. In order to stay active and continuing to make progress in your fitness consider the following 3 tips.

• Exercise first thing in the morning: hot summer days can make it harder for you to regulate your body temperature, and quite honestly can just feel draining. Use the month of May to start a morning workout routine. Working out at the coolest point of the day can be safer, more comfortable and help you stay consistent.

• Hydrate: not having enough water can raise your body temperature, and dehydration can even lead to uterine contractions. Make sure to replenish fluids after a workout. Use the month of May to get in the habit of increasing your fluids and maybe even treat yourself to a new water bottle.

• Invest in workout gear or embrace the belly and sports bra look: If you no longer have moisture wicking clothing that fits, take some time during May to order a few new tops. You’ll want to be able to dissipate the summer heat. If you exercise regularly your sweat point will be lower in order to help with temperature regulation so you’ll want to stay comfortable and have clothing that drys quickly.

Postpartum Tips

If you’re still recovering from birth or building your fitness foundation, then your goals shouldn’t change too much with the season. However, there are a few tips that will help you plan for increased physical activity outside with your little one this summer.

• Invest in a new carrier or switch to a stroller: During the cold months it’s possible you were only wearing the baby around the house or for short walks. With the nice summer days, your walks will get longer (as baby gets heavier) and that can cause neck and back pain without a supportive carrier. Take the month of May to make sure you have the right gear. Look for something with thick shoulder straps and a waist belt. Consider using a stroller for long walks until your core is strong and functional again.

• Implement a walking progression: Before jumping in to longer walks and more physical activity, use the month of May to do it gradually. Aim to increase your walks 5-10 minutes each time or by gradual distance increments each week. Use interval style training to prepare your body for longer durations.

• A little extra attention to specific muscles: During the month of May set aside 10 minutes/day, at least 3 days per week to focus on strengthening your abs, low back and glutes. Also include mobility exercises for your hip flexors and thoracic spine.

Beyond Postpartum Tips

You’ve been exercising consistently, have a strong fitness foundation and just want a little push toward your goal of more defined arms or feeling comfortable in a two piece at the beach. There is nothing wrong with aesthetics being part of your goals and here are some tips to get you that much closer.

Choose a muscle to focus on: Keep with your regular routine, but choose one muscle group to emphasize during the month of May. Include an additional 10 minutes working that muscle each workout, aiming for 3 days per week of targeted training.

Increase your cardio: If you know me, you know I believe strength training is key. However, if your goal is to see the muscles you’ve been working hard for, a little extra cardio during the month of May can give your body what you need to drop your overall body fat percentage if needed (remember, you can’t target train fat away!). Try adding some intervals to a strength workout or moderate intensity cardio on your strength recovery days.

Increase protein and water: If your plan is to add some cardio for more calorie/fat burning as suggested above, make sure you don’t lose the muscle mass you’ve worked so hard for. Aim to get at least 1g protein/kg of body weight to help you sustain muscle. Don’t forget your body needs enough water to function properly so make sure to hydrate!

So whether you’re pregnant, postpartum or further along in your motherhood journey, May through June is a great time to put these tips into action.

3 Ways to Incorporate Pelvic Floor Training into Your Strength Routine

Your pelvic floor muscles can be considered the basement of your core and play a key role in managing intra-abdominal pressure (pressure within your abdominal cavity that helps stabilize your spine). When your pelvic floor muscles work with the rest of the core to manage the pressure, you'll feel stable and strong. When one area of your core is weak, your ability to manage and create pressure for stability changes. During pregnancy breathing, abdominal muscles/wall, and pelvic floor are impacted by the changes to your body-which is why training each of them properly is so important.

Pelvic floor muscles also play important roles in sexual function, organ support, and sphincteric control (holding urine, gas and poop). During the natal period (pregnancy and postpartum), weakness or overactivity of these muscles can impact your core strength and function, as well as cause conditions such as urinary and fecal incontinence, or pain with intercourse. By now most of us have heard of kegels, and some of you may even manage to fit in a few sets while brushing your teeth or driving. However, like most muscles in our body, pelvic floor muscles need to be functional during movement and not just at rest. The best way to do this is to coordinate the activation of your pelvic floor muscles with other core muscles during movement. Here are some ways to train those muscles with common exercises:

1. During squats: As you descend into a squat this is when your pelvic floor muscles should relax. During this lowering movement, you will inhale. As you ascend up to standing with an exhale, this is when you can contract your pelvic floor muscles (think of trying to tighten your vagina around a tampon). Additionally press through your heels to activate glutes, and draw in your belly button (to hit your transverse muscles).

2. During a front dumbbell raise: As you lift the dumbbell exhale and draw in your belly button (to hit your transverse muscles), while at the same time visualizing your pelvic floor rising along with your arm toward your belly button. As you lower the dumbbell, gently release your abdominal contraction and relax your pelvic floor.

3. Wall sit: While you're holding your wall sit (back against the wall, knees bent at 90 degrees with your knees over your ankles), challenge yourself for endurance pelvic floor contractions-one set of three 8-12 seconds long holds (make sure you’re not holding your breath, just the pelvic floor lift). And then follow that with a wall sit of quick pelvic floor contractions-strong flickers of your muscles for 10-15 reps. Think quick “contract, relax, contract, relax”. (similar to an orgasm)

For most pregnant people, pelvic floor training is recommended and will help you maintain a strong and functional core. Remember to always relax between contractions...you don’t want a tight pelvic floor during delivery.

It can be helpful for everyone to get a pelvic floor assessment postpartum, as many people will need to retrain the muscles, and although common, pelvic floor dysfunction is not normal. Weakness is not the only concern, sometimes birth trauma can lead to overactive or spasmed muscles...so don’t just jump back into kegels.

Happy training!

Ready for more tips? Download 5 Tips for a Stronger Core After Pregnancy.

If you already are experiencing back pain or leaking, consider this FREE 5-day course to gain a better understanding of how to reduce your risk for pain and incontinence.

Functional Training for Moms: Pre/Postnatal Exercise Tips

Long runs after work, trying new fitness classes with your friends, training hard five days per week, or possibly never working out a day in your life. This might have been what fitness looked like for you before pregnancy. Unless you had an injury you probably weren’t strength training a ton with function in mind, or adjusting your routine based on the stage of life you were in.

And then you got pregnant, where your body is changing outside of your control...you’re moving different, feeling different and priorities are shifting. This is really where the first phase of motherhood begins, and where your exercise program should prepare you for that. For many (unless you trained as an athlete), it's the first opportunity to really choose workouts that align with the physical and functional demands being placed on your body, as well as your stage of life.

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Here are a few functional training ideas and tips for early stages of motherhood:

Pregnancy

• Learn which core exercises are still appropriate for you

• Be sure to include breathing and pelvic floor work in your fitness routine

• Focus on lengthening chest muscles and strengthening upper back muscles

• Incorporate a variety of glute exercises

• Avoid impact when you start to feel pelvic pressure or incontinence during exercise

Early Postpartum (0-6 weeks)

• Begin reconnecting to core muscles with breath and simple exercises like hip lifts and pelvic tilts

• Adjust stroller handles to the proper height and enjoy short walking bouts if you’re feeling up to it

• Focus on body mechanics while holding the baby, sitting, and feeding

• Avoid impact exercise (low impact like walking is acceptable as tolerated)

Postpartum 6-12 weeks

• Increase the duration of low-impact activities (like walking) as tolerated

• Address pelvic floor or diastasis recti concerns with a professional

• Begin to progress through core exercises

• Incorporate strength exercises like deadlifts, lunges, or box squats that mimic daily life demands

Postpartum 12 weeks-12 months

• Gradually add more impact exercise if desired (and if strength training has been adequate)

• Begin to increase strength training volume, focus on movement patterns (push, pull, squat, lunge, hinge, rotate)

• Use more frequent, but shorter duration workouts to make consistency more attainable

• Use tools like the foam roller to address mobility and muscle tightness

This is by no means an exhaustive or very specific list, but hopefully, it gives you an idea of the importance of shifting your training focus to not just meet your goals, but also your needs. If you need help personalizing your program, take advantage of the Active Mom Fitness Signature Consult.

When to Start Prenatal Exercise

The short answer: Right away!

But this also depends on what you consider prenatal exercise. Gone are the days when it has to be gentle stretching (although it could be if that’s what you need). In fact, if you watch this video from Nike, you’ll probably feel pretty badass and realize prenatal exercise is going to prepare you for the athletic event that is pregnancy and labor and delivery….a marathon combined with intense sprints.

Prenatal exercise means your training program is designed for the pregnant body. You don’t have to follow a specific set of rules for each trimester. Exercise selection isn’t dictated by the number of weeks you are. A really good prenatal program, simply means you’re going to attempt to put your body in the best position to deal with the demands of pregnancy and motherhood.

Very early in your pregnancy, you may find that prenatal exercise means:

• less intensity because you’re extremely fatigued

• learning how to engage deep abdominal while it's still fairly easy to feel them

• beginning to strengthen pelvic floor muscles

• finding a prenatal exercise specialist to keep you motivated through every trimester

• addressing muscle weakness or tightness that might become an issue later in pregnancy

Later in your pregnancy, prenatal exercise might mean:

• finding new ways to strengthen the core without creating too much abdominal pressure

• reducing impact exercise because it's uncomfortable or your pelvic floor can withstand the load

• calming exercise to help keep your stress low

• making adjustments like switching from pull-ups to rows or floor push-ups to wall push-ups

The above are just examples. Your prenatal program should be based on how you’re feeling, your current fitness level and what you enjoy doing. The earlier you can prep your body for the sport of motherhood, the better.

If you’re ready to start with something simple, download 5 Tips to a Stronger Core During Pregnancy.

Mom Posture: Why Are My Shoulders Rounded?

Catch a side view of yourself in the mirror and you might notice that your ears are slightly forward of your shoulders or that your neck is curved. It may look like you’re slouching even when standing tall, or that you have a “winged scapula”. During exercise, you might notice your shoulders shrug during pushing or pulling. You may have experienced a shoulder injury from instability, or suffer from headaches. You might even feel your breathing is inefficient.

Well guess what? There is a name for that. It’s called Upper Cross Syndrome due to the X you can draw between tight and lengthened muscles in your upper body. And although it’s common among moms, we can’t just blame the kids (although heavier breasts from pregnancy or breastfeeding can contribute). Upper Cross Syndrome affects anyone that is spending extended periods of time with your head forward (think phones and computers). Put simply there is increased stress on your neck and shoulders, which can cause some muscles to be too tight and some muscles to be weak and lengthened.

The good news is that it can be improved or corrected. Here are some starting points:

• Daily Life: Determine the positions during the day that are causing your upper cross syndrome and then reduce time in those positions. Feeding the baby? Change up the position. Working on your computer? Use a chair with good lumbar support, ensure the proper height of the keyboard, and take movement breaks. Moms, the daily stuff really adds up, so these small changes can have a huge impact! *Side note, consider your bra. If it’s not supportive, your breast can be pulling you forward.

• Lengthen: Free up the shortened muscles that are pulling you forward. Muscles like the upper trapezius, levator scapulae, and pecs (upper back and chest) can be lengthened through dynamic and static stretching, as well as using tools like a tennis ball or foam roller. A doorway chest stretch and some upper back foam rolling is a great place to start. Stretches like ear to shoulder while also tilting your chin toward your shoulder are helpful as well.

• Strengthen: Your rhomboids, serratus anterior, and lower traps (mid back), as well as your neck flexors, are probably lengthened and weak. Exercises such as standing or floor Y-raises, and chin tucks are a simple place to start.

So what do you say mama, are you ready to address what has always just been called poor posture? Find a program that works for you!

Prenatal Exercise: Your Power in Your Pregnancy

What if I told you the power you have over your pregnancy lies heavily in exercise? Or that one of the first important decisions regarding the health of you and your baby is about how much you move? What if instead of looking at it as a chore or something feared, we embraced exercise as the powerful tool it is? Hear me out...

Awareness around the importance of prenatal exercise is increasing, and moms-to-be are encouraged more than ever before to stay active during pregnancy. Gone are the days where you hear, “put your feet up, you’re pregnant”, or that you shouldn’t start an exercise program if you weren’t exercising pre-pregnancy. Health and Exercise organizations like the American College of Sports Medicine clearly state that in most adults the benefits of exercise far outweigh the risks.

In fact, the American College of Obstetricians and Gynecologists have identified the following benefits associated with prenatal exercise:

Higher incidence of:

• vaginal deliveries

• Quicker postpartum recovery

Lower incidence of:

• excessive weight gain

• gestational diabetes

• Preeclampsia (one of the most preventable causes of maternal death)

• preterm birth

• low birth weight babies

Let’s not forget about mental health benefits, with moms having reduced risk of prenatal anxiety and depression. If you have an uncomplicated pregnancy, it’s time to embrace moving more.

Exercise is your power during pregnancy. The 2020 ACSM guidelines recommend accumulating 150 minutes of moderate physical activity each week. If you’re new to exercise, don’t get caught up in the numbers, take the simple approach to prenatal exercise. If you prefer structure, make a plan and stick to it. Either way, exercise is meant to benefit your health and shouldn’t be a source of stress, so try this uncomplicated approach:

• Walk for aerobic exercise: It can be as simple as going for short walks whenever you can and longer ones when you feel good. Consider just taking an extra 5-minute walk after parking your car at your destination. If you prefer structure, commit to a 30-minute walk every day after dinner.

• Address muscle stiffness: Again, it can be as simple as recognizing where you’re feeling tight and committing to moving and stretching those areas between meetings or when you wake in the morning. You can also follow something more structured like a prenatal yoga routine. Keep in mind you may feel more stiff due to fluid retention so other strategies beyond moving could be helpful.

• Strength training is key. It’s still possible to take an uncomplicated approach, but this is an area where you want to be intentional, aiming for two strength sessions per week. You can perform bodyweight exercises or use equipment like dumbbells, bands, or suspension trainers. If you’re new to exercise or short on energy and time, start with the muscles most impacted by pregnancy: core (diaphragm to the pelvic floor), glutes, and upper back/shoulders. Again, if you prefer structure, follow a full body strength routine that’s designed for pregnancy. It’s true many people can continue with their pre-pregnancy routine, but your body has new needs so to make the most of your routine, it makes sense to train to meet those changes.

• Learn how to engage your pelvic floor: The simple approach is what you’ll usually find in a Google search, to kegel when you’re brushing your teeth or sitting in the car. For a more integrative approach, you can incorporate pelvic floor training into your strength routine by using breath and intentional contractions during specific exercises. Either way, remember relaxing the muscle is just as important as contracting.

In my experience as an Exercise Physiologist working with pregnant and postpartum moms, strength training is where people get held up, specifically core training. It’s usually a matter of not knowing what’s safe or what’s the most beneficial. There are no “best exercises for pregnancy” which is why it can be confusing. You really have to find what’s right for you.

If I had to give you one general tip it would be: learn how to engage your transverse abdominis muscles with breath. These are your stabilizing muscles and you can draw on their support during exercise. Being able to engage these muscles is also a good indicator on whether an abdominal exercise is appropriate for you. The question of planks often comes up during pregnancy. If you’re able to hold the tension in your abs, while continuing to breathe, without any bulging or doming in your abdomen or feeling pressure in your pelvic floor, then the exercise is probably a safe choice. Crunches and sit-ups are the only absolute “no”.

Other tips if you choose the power of prenatal exercise include:

• Drink plenty of water

• Eat

• Wear supportive shoes and bras (so important for posture and pain)

• Avoid risky activities (risk of impact to your belly or falling)

• Avoid overheating (exercising in a hot environment, and wearing breathable clothes)

Lastly, keep in mind there is no one-size-fits-all all approach. Exercise should make you feel good. It should make you feel empowered. Choose what’s best for you and your baby. If you have access to a fitness professional specializing in prenatal exercise, I highly recommend consulting for a personalized program.

If you’re looking for a simple way to get started, try this download for 5 Tips for a Stronger Core During Pregnancy.

*This was an original blog post for MommiNation.

Advice on Prenatal Exercise: 3 Tips to Achieve 40 Weeks of Workouts

I’ve collaborated with two mamas-to-be to provide you with their advice on exercise during pregnancy. I’ve worked with both Shannon and Jen for 40 weeks of prenatal workouts. So consider these 3 tips you approach exercise each trimester.

Tip 1 from Shannon: Consistency is key. Consistent exercise feels better physically, but just as important, consistency will help you overcome that guilty pressure of needing to “get back on track”. Even if you can’t do much, do something to stay consistent. This could be a 40 minute workout, it could be a 5 minute walk. Either way check that box and get it done.

Jen and Shannon

Tip 2 from Jen: Build a relationship with your trainer. This is a great point. Any fitness professional experienced in prenatal exercise will do their due diligence to ask you about your experience, complications, history, etc. You don’t want to have to catch every new instructor up, or worse, not have them understand your strengths and weaknesses. You’ll receive better workouts and your trainer will feel more confident challenging you if you’ve built a relationship. Jen adds, “I have a constant connection with Ashley so I am more aware of how hard to push myself and/or to know what to look out for! Ashley keeps me updated as to what to watch out for if certain pains pop up. This enables me to continue my training with confidence.

Tip 3 from Shannon: Be kind to yourself. “You never know what kind of day you are going to have. Energy flow fluctuates so much throughout different trimesters and can change daily. At a certain point, your body just grows and changes and things you used to be able to do, you just can’t do. I’ve also cut back slightly on how frequently I workout as I get closer to the end, which is okay. I’m still making the time as my body feels it can. I agree with Shannon. For some the hardest part of prenatal exercise is mental. You want to challenge yourself, but you don’t want to be rigid in your goals. With hormones shifting and your body physically changing, your mentally have to be flexible and try to be OK with adapting as needed.

If you’re pregnant and ready to get started, check out 5 Tips for a Stronger Core During Pregnancy.

Ashley Reid is an exercise physiologist with the only strength-based studio for moms and moms-to-be in Philadelphia.

Your Baby Might Be the Size of a Fruit, But Your Butt is No Longer Peachy

Belly gets bigger, boobs get bigger...butt gets flatter?? Why is Your Rear Disappearing During Pregnancy

It’s true, that some of you may experience a booty gain during pregnancy. This has to do with where your body decides to distribute the additional fat that is stored during pregnancy. However, many of you will experience the opposite, your butt (your glutes) appears to flatten.

Why does this occur?

• During pregnancy, your body anatomically changes to make room for your growing baby. Weaker abs, a growing belly, and heavier breasts can cause your lower back to start to sway (increased lordosis). This position of your pelvis provides the least amount of glute activation.

• Additionally, your hips start to widen and your feet externally rotate, again causing less use of your glutes and the appearance of a flat butt. If you're fortunate to not have a deflated peach, functionally there is still a good chance that you are losing strength (even though the additional fat may not reduce the size of your glutes).

• Lastly, not all, but many pregnant women choose different exercises and activities during pregnancy or aren’t active at all. Activities like prenatal yoga or walking are great, but they don’t do a whole lot for maintaining those rear curves. Muscle strength and definition require strength training.

So what can you do about it?

During pregnancy, your goal shouldn’t be to sculpt the best glutes of your life or to PR (personal record) in the weight room. Your goal during pregnancy should be to maintain a healthy weight, stay active, and maintain strength in the muscles commonly weakened by pregnancy. Strength training twice per week is hugely beneficial. You’ll maintain strength not just in your glutes, but your entire body…hopefully providing a more comfortable pregnancy. Subsequently, you might just keep a little shape in your rear.

How can training your glutes support your body during pregnancy?

• The hormone relaxin “relaxes” your joints so that your body can adapt to the baby. This can create joint instability. Strong glutes help maintain stability in the knees, spine, and hips.

• Glutes support hip extension. Strong glutes can reduce pregnancy low back pain by preventing excessive lumbar extension or overusing your lower back.

• Pelvic pain is another common pregnancy complaint. Strong glutes can help stabilize the SI joint, reducing the risk of pain.

Tips for training:

• Train your glutes as part of a full-body strength/resistance program twice per week.

• Do more than just squats: if you have no complications or pain you can perform a large variety of exercises. There is no “one size fits all” guide to exercise. It will depend on your energy level, previous experience, technique, and intuition as to how the exercise feels. In general, as your pregnancy progresses your exercise choice may change. But recognize hip extension, adduction, abduction, standing, lying, sitting, dumbbells, bands, and bodyweight exercises are all great options.

• Prepare for caring for your baby. You’re going to do more bending and picking things up compared to pre-baby. Consider hip extension exercises like hip thrusts, bridges, kickbacks, quadruped hip extensions, and deadlifts as good additions.

• Eat a healthy pregnancy diet, including sufficient protein (.8g per kg of body weight is the general recommended daily amount, but if you are strength training/active, that range can increase to 1.2-1.7g/kg. Although it’s harder to find pregnancy-specific guidelines, one study showed the need to intake 1.2-1.5 g of protein per kg of body weight.

So as you keep getting those What to Expect While Expecting fruit and veggie updates, don’t forget your peach needs a little love too!

If all of this information feels a bit overwhelming, and you want someone to guide you, try the Self-Paced, Mom Butt: Glute Essentials Program!

Getting to the Core of Pregnancy

Three ways beyond exercise to promote a healthy core during pregnancy.

The body’s “core” is a system of muscles that support the spine and pelvis, with the ceiling being the diaphragm and the bottom of the cylinder being the muscles of the pelvic floor. The shift of the pelvis and the separation of abdominal muscles during pregnancy can result in weakness and instability. This may lead to pain in the lower back and pelvis during pregnancy. Women without any contraindications are advised to counteract the instability and weakness by strengthening abdominal, back, butt and pelvic floor muscles through exercise

However, beyond exercise, pregnant women shouldn’t overlook these 3 strategies to encourage a healthy pregnant core.

Image from http://www.fitnessnetwork.com.au/resources-library/aqua-pelvic-floor

Tip 1 for a healthy pregnant core: perform diaphragmatic (belly) breathing

Why? The diaphragm is a thin muscles that separates the chest from the abdomen, forming the roof of the core. A 2013 article in The Journal of Multidisciplinary Healthcare discusses the functional relationship between the diaphragm and the pelvic floor, indicating the diaphragm has a role in core function and pelvic stability. The diaphragm and pelvic floor muscles should work together, meaning as the diaphragm contracts and moves down during an inhale, the pelvic floor muscles should relax and lower. The opposite is true on an exhale, with the diaphragm relaxing and rising while the pelvic floor is contracting and rising

From https://bebrainfit.com/breathing-exercises-anxiety/

How to perform diaphragmatic breathing: Women should lie on their back with knees bent or for pregnant women beyond 16 weeks, sitting is appropriate. Inhale slowly to the count of 3, letting your belly expand outward. Exhale slowly to the count of 3, allowing your belly to relax. Repeat this 5 times. As the belly grows this will become more difficult and “chest breathing” will become more natural, however women can still be deliberate about the mind body connection between the diaphragm and pelvic floor. This type of breathing may also be useful in the first stages of labor as a relaxation technique and is a safe postpartum exercise to begin rebuilding the core after baby.

Tip 2 for a healthy pregnant core: Rise up with a side roll

Why? There are three groups of muscles that make up the abdomen. During pregnancy the rectus abdominis group (6-pack muscles), can separate due to increased hormones and tension placed on the abdominal walls due to the growing baby. A study by Sperstad JB, Tennfjord MK, Hilde G, et al. 2016; found that approximately 33% of women at 21 weeks pregnant will experience separation and that number rises to 60% when looking at women 6 weeks postpartum.This separation is called Diastasis Recti Abdominis. Anything that increases the pressure within the abdominal wall can widen the separation of the muscle (sneezing and coughing included). One factor that women can control is the pressure exerted on the abdominal wall while rising up from a lying position.

How to create less pressure while rising:  Women can rise up to sitting or standing by performing a side roll, rather than coming straight up and putting excessive pressure on the abdominal walls. From lying on the back, first bring knees to a bent position then roll to the side. Using both arms, push the body up. If lying in a bed, then drop both legs over the bed and stand. If coming up off of the floor, push up on both arms and then come into a kneeling position to rise and stand.

From http://brochures.mater.org.au/brochures/mater-mothers-hospital/pregnancy—information-for-women-and-families

Tip 3 for a healthy pregnant core: Avoid bearing down or breath holding

Why? As already discussed, increased abdominal wall pressure can lead to further separation of the abdominal muscles.

How to avoid bearing down or breath holding: women should exhale through any strenuous movements that might cause her to bear down or hold her breath. This might include bowel movements, lifting objects or other children, and movements during exercise.

Although these 3 strategies work to improve core function and decrease abdominal wall pressure, more research needs to be done on the risks and preventative factors related to pelvic and back pain, as well as abdominal separation during pregnancy.

Ready to learn more? Download 5 Tips for a Stronger Core During Pregnancy.