Is it advisable to do exercise when affected by Miller-Dieker syndrome? Which activities would you suggest and how intense should they be?

Physical activity is highly recommended for individuals with Miller-Dieker syndrome as it supports motor development, muscle tone maintenance, and overall quality of life. Because Miller-Dieker syndrome presents with significant neurological and physical challenges, including lissencephaly and hypotonia, exercise must be carefully adapted, closely supervised by a physical therapist, and tailored to the individual's specific developmental level.

Is exercise safe for individuals with Miller-Dieker syndrome?

Yes, exercise is not only safe but essential for managing the physical manifestations of Miller-Dieker syndrome. Children and adults living with this condition often experience hypotonia (low muscle tone) and developmental delays. A structured movement program can help improve postural stability, prevent contractures, and provide sensory input. However, because Miller-Dieker syndrome is characterized by lissencephaly (smooth brain), individuals are at a higher risk for seizures and balance issues. Therefore, all exercise programs must be cleared by a neurologist and designed by a physical therapist to ensure safety and prevent overexertion.

What types of activities are recommended for Miller-Dieker syndrome?

The goal of exercise for those with Miller-Dieker syndrome is to enhance functional mobility and comfort rather than athletic performance. Activities should focus on gentle range-of-motion and sensory engagement. Recommended activities include:

• Hydrotherapy (Swimming): Water provides buoyancy that supports weak muscles, allowing for easier movement and reduced joint strain.


• Adaptive Yoga/Stretching: Gentle, therapist-led stretching helps manage muscle tightness and prevents the development of joint contractures.


• Supported Walking: Using gait trainers or physical assistance to promote weight-bearing, which is vital for bone density.


• Sensory Integration Exercises: Activities that involve rhythmic rocking or vestibular input to help with coordination and spatial awareness.

How should an exercise program be structured?

When implementing an exercise routine for someone with Miller-Dieker syndrome, pacing is critical. You should always prioritize "low-intensity, high-frequency" sessions. Start with 5–10 minutes of activity and observe how the individual responds to fatigue. If the person experiences increased seizure activity, excessive irritability, or extreme lethargy, the intensity must be reduced immediately. On "difficult days"—such as after a poor night’s sleep or during a period of increased seizure frequency—focus solely on passive range-of-motion exercises or calming sensory activities rather than active movement.

What is the role of physical therapy?

Physical therapy is the cornerstone of care for Miller-Dieker syndrome. A therapist specialized in neurodevelopmental disorders can create a personalized plan that adapts as the child or adult grows. They are trained to identify when a movement might trigger a seizure or cause physical distress. With 19 members of the DiseaseMaps community sharing their experiences, it is clear that early and consistent intervention by a physical therapist significantly improves the ability to perform daily tasks and enhances the overall well-being of those affected by Miller-Dieker syndrome.

Next steps

• Consult with a pediatric neurologist to establish a safety baseline regarding seizure thresholds before starting any new activity.


• Request a referral from your primary care physician to a physical therapist who has experience with neurodevelopmental disabilities.


• Join the DiseaseMaps.org community to connect with other families and learn how they adapt daily movement for their loved ones.


• Document the response to exercise in a daily log to track progress and identify any potential triggers for symptoms.

Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment; always consult with your specialist physician before starting any new physical activity.

References

• NIH Genetic and Rare Diseases Information Center (GARD) - Miller-Dieker syndrome overview.


• Orphanet - Rare disease database entry for Miller-Dieker syndrome.


• OMIM (Online Mendelian Inheritance in Man) - Detailed clinical synopsis of 17p13.3 deletion syndrome.


• The Lissencephaly Network - Resources for families and therapeutic support strategies.