Exercising During Pregnancy: Safe Workouts for Expectant Mothers

Benefits of Exercising During Pregnancy

Many expectant mothers worry that physical activity will affect their baby. However, according to the American College of Obstetricians and Gynecologists (ACOG), regular exercise during pregnancy brings numerous benefits for both mother and baby:

Benefits for the mother

• Reduced back pain: Strengthens back and abdominal muscles, supporting the spine as the belly grows
• Reduced constipation: Movement stimulates intestinal activity
• Gestational diabetes prevention: Reduces risk by up to 50%
• Weight management: Healthy weight gain, avoiding excess weight
• Improved mood: Reduces stress, anxiety, and depression through endorphins
• Reduced leg swelling: Improves blood circulation
• Labor preparation: Increases stamina, shortens labor duration
• Faster postpartum recovery
• Better sleep

Benefits for the baby

• Better fetal development
• Stable fetal heart rate
• Reduced risk of excessive birth weight (macrosomia)
• Better fetal brain development (according to recent research)

Golden Rules for Pregnancy Exercise

Before starting any exercise program, expectant mothers should follow these principles:

1. Consult your doctor

Always seek medical advice before exercising, especially if you have health issues or pregnancy complications.

2. The “talk test” rule

If you can carry on a normal conversation while exercising, the intensity is appropriate. If you are gasping and cannot speak, reduce the intensity.

3. Warm up and cool down

Always warm up for 5-10 minutes before exercise and cool down for 5-10 minutes afterward.

4. Stay hydrated

Drink water before, during, and after exercise. Dehydration during pregnancy is very dangerous.

5. Avoid overheating

Don’t exercise in hot environments, avoid hot yoga and saunas. Elevated body temperature can affect the fetus.

6. Don’t lie on your back after the 4th month

The enlarged uterus compresses the inferior vena cava when lying on your back, reducing blood flow to the heart and placenta.

Safe Exercises by Trimester

First Trimester (Weeks 1-12)

This is the most sensitive period — exercise gently:

Walking:

• 20-30 minutes per day on flat surfaces
• Moderate pace, wear comfortable athletic shoes
• The simplest yet highly effective exercise

Prenatal yoga:

• Gentle poses: cat-cow, gentle bridge pose
• Deep breathing and relaxation
• Avoid strong twisting poses

Kegel exercises:

• Contract pelvic floor muscles, hold for 5-10 seconds, release
• Repeat 10-15 times, 3 sets per day
• Helps prevent urinary incontinence and supports vaginal birth

Second Trimester (Weeks 13-26)

The “golden” period of pregnancy — mothers feel most comfortable:

Swimming:

• Ideal exercise for expectant mothers — water supports the body, reducing joint pressure
• Swim 20-30 minutes at a moderate pace
• Water temperature 27-33°C is appropriate
• Avoid backstroke after the 4th month

Stationary cycling:

• Safer than outdoor cycling (no risk of falling)
• 20-30 minutes at moderate speed
• Adjust seat height as the belly grows

Strengthening exercises:

• Squats: Strengthen thigh and glute muscles, preparing for birth
• Pelvic tilts: Reduce lower back pain
• Light weights (1-2 kg): Strengthen arm muscles
• Resistance band exercises

Third Trimester (Weeks 27-40)

The belly is large — adjust exercises accordingly:

Light walking:

• Reduce duration and speed
• Choose flat surfaces, avoid hills
• Have someone walk with you

Yoga and stretching:

• Butterfly pose (seated, soles of feet touching): Opens the pelvis
• Child’s pose: Reduces back pain
• Labor breathing practice: Deep breathing, quick breathing
• Avoid poses that challenge balance

Pelvic floor exercises:

• Continue regular Kegels
• Perineal massage (from week 34): Reduces risk of perineal tearing

When You Should Not Exercise

Expectant mothers should not exercise with the following conditions:

• History of recurrent miscarriage
• Placenta previa (after week 26)
• Threatened preterm labor or cervical incompetence
• Preeclampsia or severe gestational hypertension
• Severe anemia
• Severe heart or lung disease
• Multiple pregnancy with risk of preterm birth
• Premature rupture of membranes

Warning Signs to Stop Exercising Immediately

While exercising, if you experience any of the following signs, stop immediately and contact your doctor:

• Vaginal bleeding or abnormal discharge
• Abdominal pain or uterine contractions
• Dizziness, fainting
• Unusual shortness of breath (before starting exercise)
• Chest pain
• Severe headache
• Muscle weakness affecting balance
• Calf swelling or pain (signs of blood clot)
• Decreased fetal movement

Exercise and Common Pregnancy Issues

Reducing back pain

Back pain affects 50-70% of expectant mothers, especially in the third trimester. Effective exercises:

• Pelvic tilt: Stand with your back against a wall, flatten the lower back against the wall, hold for 5 seconds. Repeat 10 times, 3 sets per day
• Cat-cow pose: On all fours, alternate between arching the back up (cat) and curving down (cow). 10 times per set, 3 sets per day
• Hip stretch: Sit on a chair, place one ankle on the opposite knee, lean forward gently. Hold 15-20 seconds on each side

Reducing leg swelling

Leg swelling is common in the third trimester due to uterine pressure on veins. Exercises to reduce swelling:

• Ankle rotations: Sitting or lying down, rotate ankles 10 times in each direction, 3-4 times per day
• Leg elevation: Lie on your side, elevate legs for 15-20 minutes, combined with ankle rotations
• Light walking: Improves blood circulation, reduces fluid pooling in the legs

Preparing for vaginal birth

The following exercises help expectant mothers build stamina and prepare for a vaginal birth:

• Wall squats: Stand with back against a wall, slowly lower into a squat position, hold for 10-20 seconds. Strengthens thigh and glute muscles, prepares for the pushing position
• Birth ball exercises: Sit on the ball, gently rock hips. Helps open the pelvis and reduce back pain
• Labor breathing practice: Inhale through the nose for 4 counts, exhale through the mouth for 6 counts. Practice 10 minutes per day

Sample Weekly Schedule (Second Trimester)

Expectant mothers can adjust the schedule flexibly according to their health and how they feel. The principle is to listen to your body — if tired, rest, don’t push yourself.

Combining Exercise with Nutrition

Exercise should go hand in hand with a balanced diet:

• Before exercise: Eat a light snack 30-60 minutes beforehand (a banana, a few slices of whole wheat bread)
• During exercise: Take small sips of water every 15-20 minutes
• After exercise: Replenish protein and carbohydrates (a glass of milk, yogurt + fruit)
• Stay hydrated: Drink an additional 500ml of water on exercise days

When to See a Doctor

Expectant mothers should visit for a prenatal check-up for exercise counseling when:

• You are newly pregnant and want to plan an appropriate exercise routine
• You have a history of miscarriage, preterm birth, or pregnancy complications
• You experience abdominal pain, bleeding, or any unusual symptoms during or after exercise
• You have gynecological inflammation or recurrent urinary tract infections
• You have underlying conditions such as heart disease, lung disease, hypertension, or preeclampsia

Doctor’s Advice

With over 30 years of experience caring for pregnant women, BSCKI. Trần Thị Thúy Lâm advises: “Pregnancy is not an illness — expectant mothers absolutely can and should exercise regularly. However, each pregnancy is different, so before starting, come in for an exam so the doctor can evaluate your health and recommend suitable exercises. Especially for expectant mothers in Lào Cai, take advantage of the fresh air and walk every day — it’s the simplest and most effective form of exercise.”

Start today for a healthy pregnancy and a smooth delivery.

Related Articles

• Third Trimester Nutrition Guide — Combining nutrition and exercise for an optimal pregnancy
• C-Section vs. Vaginal Birth — Regular exercise increases the chances of a successful vaginal birth
• Preeclampsia: Warning Signs — Exercise helps prevent preeclampsia

Book an Appointment

Contact us now for advice on a suitable exercise plan during pregnancy:

• Hotline: 0986 321 000
• Address: 125 Hàm Nghi, Kim Tân, Lào Cai
• Services: Prenatal Check-ups | Obstetric Ultrasound