It is now known exercise after prostate cancer diagnoses plays a major role in helping men with prostate cancer live longer and manage treatment side effects. Research shows men who exercise regularly have a lower risk of dying from the disease, yet exercise is still not widely recognised as part of standard cancer care.
Exercise is more than staying fit. Every workout session triggers changes which:
- Improves your quality of life – feel more energetic and less fatigued
- Reduces your treatment side effects – hormone therapy, chemotherapy, or radiation
- Helps fight and destroy cancer cells
- Improves your metabolism
- Lowers inflammation which cancer needs to spread through your body
- Makes your body less welcoming for cancer growth.
and potentially helps you live longer.
Key fact: Men who did three or more hours of vigorous exercise per week had a 61% lower risk of dying from prostate cancer.
Building and Protecting Muscle
Muscle mass is especially important for men fighting prostate cancer. If you have low muscle mass you face a higher risk of death. Exercise, specifically resistance training, helps build and protect muscle. Healthy muscles act like an in-built “pharmacy,” and when exercised release protective chemicals (myokines) that:
- Reduce cancer progression
- Slow tumor growth
- Help you tolerate treatments better
- Reduce side effects such as fatigue
Tip: Include 2-3 resistance training sessions such as weight lifting, resistance bands, or body-weight exercises per week.
Managing Body Fat
Excess body fat:
- Increases inflammation
- Worsens cancer outcomes
- Raises risk of heart disease and diabetes
Tip: Combine healthy eating with strength training and moderate intensity exercise to lose fat while maintaining muscle.
Exercise During Active Surveillance
If you have low-grade prostate cancer and are under “watch and wait”:
- Exercise can slow disease progression
- Can lower your PSA levels
- Provide reassurance you are actively supporting your health
Tip: Get in the habit of doing moderate intensity aerobic exercise (brisk walking, cycling) most days of the week.
Managing Hormone Therapy Side Effects (ADT)
Hormone therapy (ADT) slows prostate cancer by reducing testosterone but often causes side effects such as muscle loss, bone loss, and higher risk of heart disease. Different exercises target these problems:
- Resistance training preserves your muscle
- Impact exercises (like hopping or step-ups) protect your bones
- Moderate intensity aerobic exercise supports ADT by fighting cancer cells
The right balance of exercise depends on your needs.
Exercise with Advanced Prostate Cancer
Exercise programs designed specificaly for men with cancer that has spread to bones is safe and highly recommended. Benefits include:
- Improved strength, mobility, and quality of life
- Possible bone protection
Exercise and Radiation Therapy
Radiation therapy works best when cancer tumors have good oxygen supply. Exercise before treatment can help:
- Increase blood flow to tumors
- Raise oxygen levels, making radiation more effective
Practical tip: Exercise for 5-10 minutes at a moderate intensity 10–20 minutes prior to treatment – brisk walk, stair climbs, light cycling, or body-weight exercises.
Your Weekly Exercise Plan
When starting a prostate cancer recovery program, your goal is to:
- Get 150 minutes of moderate intensity exercise (like brisk walking) or 75 minutes of vigorous exercise (like short sprints) per week
- Do two to three resistance training sessions per week, targeting major muscle groups
Try to do some form of exercise everyday. You should be aiming to do 20 minutes of moderate intensity everyday of the week. If you have fatigue, break it down to several 5–10 minute bouts throughout the day.
Impact exercises (if safe):
- Step-ups, hopping, or small jumps
- 4 days per week for bone health (if no bone metastases)
Tip: Consult your care team for exercise advice or to engage a professional trained in exercise oncology – physiotherapist, clinical exercise physiologist, or personal trainer for an exercise plan to get you started.
Understanding Exercise Intensity: Moderate vs. Vigorous
Not all exercise is the same. How hard your body is working matters for your health benefits.
Moderate Intensity Exercise
- Heart rate rises, breathing faster, but you can talk in full sentences
- Examples: brisk walking, bike riding, water aerobics, stair climbing
- Goal: 150 minutes per week, every day for 20 minutes.
Vigorous Exercise
- Heart rate higher, breathing hard enough talking becomes difficult
- Examples: jogging, running, fast cycling, swimming laps, high-intensity intervals
- Goal: 75 minutes per week, or mix with moderate intensity activity using equivalent time
The Talk Test – A Simple Guide
- Moderate: Can talk comfortably, but singing would be hard
- Vigorous: Can only speak a few words before pausing to breathe
This simple method ensures you exercise at the right intensity to get the full benefits for your muscles, heart, and cancer fighting outcomes.
Mental Health and Exercise
A prostate cancer diagnosis often brings anxiety, low mood, and feelings of uncertainty. Treatment side effects can also make it harder for you to cope emotionally. Exercise is one of the most effective, natural tools for protecting your mental wellbeing.
How exercise helps mental health:
- Reduces anxiety and depression – regular activity releases endorphins (your body’s “feel-good” chemicals)
- Improves sleep – even light to moderate exercise can help you fall asleep faster and sleep more deeply
- Boosts self-confidence – regaining strength and fitness can restore your sense of control during treatment
- Sharpens thinking and memory – physical activity increases blood flow to the brain, helping your focus and concentration
Practical tips:
- Start small: even a 10-minute outdoor walk can lift your mood
- Try group activities: walking groups, men’s shed programs, or supervised exercise classes provide social support
- Combine mind and body: yoga, tai chi, or gentle stretching improve both flexibility and mental calm
Final say
Don’t stay sedentary. Exercise after prostate cancer diagnoses could be the difference between you living and dying. Aim to move every day, combining aerobic and strength training, and tailor exercise to your health needs. If you do not know how to start an exercise program, ask your care team for advice. Exercise reduces your treatment side effects, improves your quality of life, supports your mental wellbeing, and may even extend your life.
Keep moving.