I’m assuming since you’re reading this that you are new to prenatal exercise so let’s take a second to acknowledge the important step you’re taking for the health of you and your baby.
In this article, I want to share with you advice on choosing cardio and strength exercises, but first I have a disclaimer. I don’t like using the word “best” because there is no “best exercise for X trimester”. Every prenatal exercise program should be personalized and exercise selection should be based on your needs and abilities. However, as a beginner, you may not realize what those exercises are or where to begin, so this article is to help get you started so that you can stay physically active during pregnancy. If you haven’t exercised in a while or never have exercised before, this article is for you.
Best Cardio Exercise During Pregnancy
The prenatal exercise guidelines recommend accumulating 150 minutes of moderate activity each week, and aerobic or cardio exercise is one component of physical activity. As a beginner, it’s important to understand intensity and progression. Unless you’ve been told otherwise, I’d recommend moderate-intensity exercise. Rather than relying on your heart rate during pregnancy, determine your intensity based on how hard it feels you’re working. You’re experiencing many cardiovascular changes so heart rate monitoring may not be the most reliable for you. The good news is that research indicates using a scale that measures your perceived exertion correlates well with heart rate zones. Moderate-intensity exercise should feel like you’re overall workload during the workout feels like a 4-5 on the modified Borg scale. You can also consider the talk test. Moderate-intensity exercise should feel like you can talk, but you’re too winded to sing.
To reap the benefits of aerobic activity you do need to challenge yourself, so keep in mind if you’re walking at a pace of 3mph on the treadmill now and that feels like moderate intensity, as you progress and become more aerobically fit, you may need to increase the speed or incline to reach that same intensity. I say may because as you progress in pregnancy, you also might feel more winded due to the baby taking up more space. This also means that although casual walks are great because moving is important during pregnancy, to receive aerobic benefits your walking intensity needs to be more than a leisurely stroll.
The other advice I’d give you to determine the best cardio exercise during pregnancy for beginners is to consider the impact level of aerobic exercise. Impact refers to how hard the exercise is on the joints. The harder the exercise on the joints, the more muscle strength is required to endure the impact and prevent injury. Exercises are usually categorized as high or low impact. Running, skiing, gymnastics and jumping are examples of high impact. Walking, yoga, biking, elliptical, and swimming are examples of low-impact activities.
As a beginner, the best aerobic exercise during pregnancy is low to moderate impact. If you’re inexperienced or haven’t worked out in a while, then pregnancy is not the time to test whether your body can handle high-impact activities. Added pregnancy weight may also make high-impact activities more uncomfortable, so choose an activity that you can do safely and comfortably.
Best Strength Exercises During Pregnancy
The prenatal exercise guidelines also mention strength training as a component of exercise during pregnancy. Health and fitness organizations generally state that resistance training should be performed on all major muscle groups like the back, chest, quadriceps, and hamstrings twice per week. Although you may want sculpted biceps or triceps, isolating the smaller muscle groups is not the most beneficial goal during pregnancy. Your priority should be to be able to perform all major movement patterns, which target all of the major muscle groups.
As a beginner, you’ll reap the benefits of an uncomplicated program. An example of this is a full-body circuit performed twice per week. Your circuit should focus on hitting all of the major movement patterns/muscle groups that you need to be able to move well and without pain throughout each trimester.
Here is an example circuit
Squat pattern: Body weight squats
Push pattern: Dumbbell chest press
Lunge pattern: Forward lunge
Pull pattern: Supported single-arm dumbbell row
Hinge (movement at the hips): Glute bridge
Anti-rotation (keeping your body from being pulled to one side, like when holding a heavy purse in one hand): Pallof press
Core with pelvic floor: Dumbbell front raise (exhale on the lift while engaging your deep abs toward your spine and lifting your pelvic floor muscles)
Remember there are hundreds of exercises and a variety of ways to structure and select them so feel free to substitute any of them. As you advance, you can vary the exercise by adding more weight, changing the equipment, increasing the reps/time performing the exercise, or going through the circuit for more rounds.
So in summary, the takeaway points are:
The best aerobic exercise for most moms-to-be is going to be low impact and moderate intensity.
The best prenatal strength program for beginners is one that is full body and covers all of the major muscles/movement patterns, using a resistance that you can perform 10-15 reps without strain or breath holding.
The best prenatal exercises that help you stay active during pregnancy, are ones that you enjoy and are those that you can do consistently and without pain.
Your specific exercise selection should be personalized to meet your needs.
One additional side note based on my experience working with beginner moms during pregnancy, is that I know it can be hard to find the time and energy to perform separate aerobic and strength training sessions. If you have to choose, select resistance training in a format like the circuit mentioned. This will ensure you’re strengthening muscles and allow you to elevate your heart rate at the same time. You can then add walk breaks throughout the day or after dinner to supplement those structured sessions to meet the recommended minimum of 150 minutes each week.
As always, if you need more guidance I’m happy to help. You deserve to feel empowered. Start by downloading the 5 Tips for a Stronger Core During Pregnancy.