Strength Training After Breast Cancer: Safe and Effective Workouts for Survivors
If you are a breast cancer survivor, you already know that this stage of life comes with unique challenges. Beyond the treatments themselves, many women take hormone therapies such as Tamoxifen or aromatase inhibitors that help reduce recurrence risk—but often bring side effects like joint stiffness, fatigue, and weight gain.
It can feel like your body has changed overnight. Weight seems harder to manage, especially around the waist and hips. Muscles feel softer, strength is harder to build, and energy doesn’t last the way it used to.
The good news is that strength training after breast cancer can completely change how your body responds. With the right approach, you can rebuild lean muscle, protect bone density, regain confidence, and feel strong again.
Why Strength Training Matters After Breast Cancer
Hormone therapies lower estrogen, which is effective in reducing recurrence risk but also impacts muscle mass, bone health, and fat distribution. Without targeted strength training, many women experience:
- Loss of muscle tone and definition
- Decreased bone density and higher fracture risk
- Slower metabolism and increased fat storage
- Joint discomfort and stiffness
Strength training directly addresses each of these challenges by:
- Building lean muscle, which supports metabolism and weight management
- Strengthening bones by applying controlled stress that stimulates bone growth
- Improving joint stability through stronger supporting muscles
- Boosting energy, confidence, and overall sense of control over your body
This is why, when I design personalized online training plans for women on Tamoxifen, strength training is always the foundation.
The Best Strength Exercises After Breast Cancer
When dealing with fatigue or stiffness, exercise needs to give the greatest return for your effort. Compound movements—those that engage multiple muscle groups at once—are especially effective. Here are some of the best options I use with my clients:
Lower Body
- Squats (goblet, dumbbell, or barbell): Build leg and core strength while protecting bone density.
- Deadlifts or Romanian Deadlifts: Strengthen the posterior chain (glutes, hamstrings, lower back) and support posture.
- Step-Ups: Improve balance and single-leg strength, helpful if joints feel uneven or stiff.
Upper Body
- Rows (dumbbell, barbell, or resistance band): Essential for back strength and posture.
- Overhead Press: Strengthens shoulders and arms while improving stability.
- Lat Pulldown or Australian Pull-Ups: Improve pulling strength and support posture.
Core & Stability
- Planks and Side Planks: Build deep core strength without stressing the spine.
- Bird Dogs: Improve stability and joint mobility.
- Glute Bridges or Hip Thrusts: Strengthen hips and glutes, which support both balance and bone density.
A Sample Weekly Strength Training Plan After Breast Cancer
Here’s an example of how I often structure workouts for a women that has fully recovered from surgeries and has a moderate amount of strength training experience in my FITBODY Pink coaching program. This 6-day structure emphasizes strength training while balancing recovery and cardio. Four lifting sessions target the whole body with extra focus on the lower body, while a dedicated SIT cardio session supports fat loss and conditioning.
Day 1: Lower Body Strength
- Squats (goblet or barbell) – 4 sets of 8–10 reps
- Romanian Deadlifts – 3 sets of 10–12 reps
- Step-Ups – 3 sets of 12 reps per leg
- Glute Bridges – 3 sets of 15 reps
- Calf Raises – 3 sets of 15–20 reps
Day 2: Upper Body Strength
- One-Arm Dumbbell Row – 3 sets of 10–12 reps
- Overhead Press – 3 sets of 8–10 reps
- Lat Pulldown or Australian Pull-Ups – 3 sets of 8–12 reps
- Bicep Curls + Tricep Kickbacks (superset) – 2 sets of 12–15 reps each
Day 3: Active Recovery / Mobility
Gentle yoga, stretching, or walking 20–30 minutes
Day 4: Lower Body Strength (Glute & Hamstring Focus)
- Hip Thrusts – 4 sets of 10–12 reps
- Deadlifts – 3 sets of 6–8 reps (heavier load)
- Bulgarian Split Squats – 3 sets of 10 per leg
- Lateral Band Walks – 3 sets of 15 steps each side
- Core: Side Planks – 3 rounds, 30–45 sec each
Day 5: Full Body Strength
- Deadlift-to-Row Combo – 3 sets of 10
- Dumbbell Thrusters (squat + press) – 3 sets of 10–12 reps
- Wall Pushups – 3 sets to near failure
- Scapular Retractions – 3 sets of 12–15 reps
- Bird Dogs – 3 sets of 10 per side
Day 6: SIT Cardio (Sprint Interval Training)
- 5-minute warm-up (walking or light jogging)
- 6–8 rounds: 20–30 seconds of all-out effort (bike, treadmill, rower, or outdoors) followed by 90 seconds of slow recovery
- 5-minute cool-down stretch
Day 7: Rest or Gentle Walking
This structure allows you to:
- Prioritize strength training 4x per week.
- Emphasize lower body development for muscle tone, fat loss, and bone density.
- Add a single SIT cardio session to maximize fat-burning efficiency without causing overtraining.
- Build in recovery to help manage fatigue, soreness, and joint stiffness.
Supportive Training Beyond Lifting
While strength training should be your core focus, supportive training adds balance:
- Walking & Incline Cardio: Great for fat loss and heart health without stressing joints.
- Yoga & Mobility Work: Keeps joints moving freely and reduces stiffness.
- Swimming or Water Workouts: Perfect for days when fatigue is high and joints need a break.
These complement your lifting—not replace it.
The Bottom Line
Strength training after breast cancer is one of the most powerful tools you have to rebuild your body, protect your health, and restore your confidence. It helps manage weight gain, reduces stiffness, supports bone density, and makes you feel strong and capable again.
You’ve already fought through cancer. Now it’s about reclaiming your strength and creating a body that supports your next chapter.
And you don’t have to figure it out alone. In my online fitness and nutrition coaching for breast cancer survivors, I create customized training and nutrition plans that work with your body—not against it. As a two-time breast cancer survivor myself, I know firsthand what it takes to train safely and effectively through this season of life.
If you’re ready to feel strong, lean, and in control of your body again, I’d love to help guide your journey.
Appendix: Scientific Research
Irwin, Melinda L., et al. “Strength training and breast cancer survival: a randomized controlled trial.” Journal of Clinical Oncology, vol. 33, no. 15_suppl, 2015, pp. 9508–9508. doi:10.1200/jco.2015.33.15_suppl.9508.
Schmitz, Kathryn H., et al. “Weight lifting in women with breast-cancer–related lymphedema.” New England Journal of Medicine, vol. 361, no. 7, 2009, pp. 664–673. doi:10.1056/NEJMoa0810118.
Winters-Stone, Kerri M., et al. “Resistance exercise reduces body fat and insulin during adjuvant chemotherapy for breast cancer.” Breast Cancer Research and Treatment, vol. 150, no. 3, 2015, pp. 537–546. doi:10.1007/s10549-015-3334-3.
