Is it advisable to do exercise when affected by Dermatomyositis and Polymyositis? Which activities would you suggest and how intense should they be?

Exercise is generally recommended for individuals with Dermatomyositis and Polymyositis, provided it is initiated during a stable disease phase and monitored by a medical professional. Regular, appropriately tailored physical activity helps combat muscle atrophy and improves cardiovascular health without worsening the underlying inflammation of Dermatomyositis and Polymyositis.

Is exercise safe for someone with Dermatomyositis and Polymyositis?

For many years, patients were advised to rest, but current clinical evidence shows that supervised, low-to-moderate intensity exercise is safe and highly beneficial for those living with Dermatomyositis and Polymyositis. Exercise helps counteract the muscle weakness and fatigue characteristic of these conditions. However, it is essential to obtain clearance from your rheumatologist before starting, as high-intensity exercise during periods of active disease or high muscle enzyme levels (such as elevated creatine kinase) may increase muscle damage.

What types of exercise are most beneficial?

The goal of an exercise program for Dermatomyositis and Polymyositis is to improve aerobic capacity and muscle endurance without overstressing damaged tissues. Low-impact activities are generally best tolerated. Beneficial exercises include:

• Walking: A simple, effective way to maintain cardiovascular health at your own pace.


• Water-based therapy: Swimming or water aerobics provide resistance while the buoyancy of the water protects joints and muscles.


• Yoga and Tai Chi: Excellent for improving flexibility, balance, and mindfulness, provided you modify poses to avoid overstretching inflamed muscles.


• Light resistance training: Using light weights or resistance bands can help rebuild strength, but should only be performed under the guidance of a physical therapist.

How should I pace my exercise and adapt on difficult days?

Pacing is a critical skill for managing Dermatomyositis and Polymyositis. On days when you experience increased fatigue or muscle soreness, it is important to listen to your body and scale back. Use the "two-hour rule": if you feel significantly more exhausted or sore two hours after exercise than you did before, the intensity was likely too high. Consider breaking your activity into short, 5-10 minute sessions throughout the day rather than one long, strenuous workout.

What is the role of physical therapy and rehabilitation?

Physical therapy is the gold standard for creating a safe, customized plan for patients with Dermatomyositis and Polymyositis. A physical therapist can conduct a baseline assessment of your strength and range of motion, ensuring that your exercise program progresses at a pace that prevents injury. With 413 members of the DiseaseMaps.org community sharing their experiences, we know that many find structured rehabilitation to be a turning point in regaining functional independence and improving their daily quality of life.

Next steps

• Consult your rheumatologist to confirm your disease is in a stable state before beginning any new exercise regimen.


• Request a referral to a physical therapist who has experience working with patients who have autoimmune or inflammatory myopathies.


• Start with a "low and slow" approach, documenting your activity and symptoms in a journal to identify your personal limits.


• Join the Dermatomyositis and Polymyositis community on DiseaseMaps.org to connect with others who are navigating similar physical activity challenges.

Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment; always consult your physician regarding your specific health needs.

References

• NIH Genetic and Rare Diseases (GARD) Information Center - Dermatomyositis and Polymyositis resources.


• Orphanet (ORPHA: 733) - Information on Inflammatory Myopathies.


• The Myositis Association - Clinical guidelines on exercise and physical therapy for myositis patients.


• PubMed/NCBI - Systematic reviews on the safety of exercise in idiopathic inflammatory myopathies.