Exercises for Muscular Dystrophy: Staying Active While Protecting Your Muscles

Muscular dystrophy encompasses a group of genetic conditions that cause progressive muscle weakness and degeneration. While there's no cure, appropriate exercise can help maintain function, improve quality of life, and potentially slow some aspects of disease progression.

The key word is "appropriate." Exercise for muscular dystrophy requires careful balance—enough activity to maintain what you have without causing additional muscle damage.

Understanding Exercise and Muscular Dystrophy

The Challenge

In muscular dystrophy, muscle fibers are more susceptible to damage. Intense or eccentric exercise (like lowering weights or walking downhill) can cause more harm than benefit. But complete inactivity leads to:

• Faster loss of strength
• Joint contractures (tightening)
• Cardiovascular deconditioning
• Reduced bone density
• Decreased quality of life

The Goal

Exercise for MD aims to:

• Maintain current function as long as possible
• Preserve range of motion
• Support cardiovascular health
• Prevent contractures
• Maximize quality of life

Not every form of exercise is appropriate, and intensity matters greatly.

Types of Muscular Dystrophy and Exercise

Different types have different considerations:

Duchenne Muscular Dystrophy (DMD)

The most common and severe childhood form:

• Progressive weakness starting in early childhood
• Typically non-ambulatory by early teens
• Cardiac and respiratory involvement

Exercise approach: Gentle, submaximal exercise. Focus on stretching, range of motion, and light activity. Avoid resistance training and high-intensity activities.

Becker Muscular Dystrophy (BMD)

Similar to Duchenne but milder and slower:

• Later onset
• Ambulatory longer
• Variable progression

Exercise approach: Moderate, carefully monitored exercise may be tolerated. Pool-based exercise often works well. Avoid high-intensity and eccentric exercise.

Myotonic Dystrophy

Most common adult form:

• Affects multiple body systems
• Myotonia (difficulty relaxing muscles)
• Cardiac involvement common

Exercise approach: Gentle aerobic exercise, stretching, and light activity. Monitor cardiac function. Avoid cold environments (worsens myotonia).

Limb-Girdle Muscular Dystrophy

Affects shoulders and hips:

• Variable severity and progression
• Usually begins in teens or adulthood

Exercise approach: Individualized based on severity. Moderate, low-intensity activity often appropriate. Focus on maintaining function.

Facioscapulohumeral Muscular Dystrophy (FSHD)

Affects face, shoulders, and upper arms:

• Often asymmetric
• Variable progression
• Many remain ambulatory

Exercise approach: Moderate aerobic exercise and carefully supervised strength training may be appropriate. Avoid overworking already-weak muscles.

Safe Exercise Principles

1. Stay Submaximal

Never exercise to exhaustion or muscle failure:

• Exercise should feel easy to moderate
• Stop well before fatigue
• "Less is more" approach
• Recovery should be quick

2. Avoid Eccentric Exercise

Eccentric contractions (muscle lengthening under load) cause the most damage:

• Walking downhill or down stairs
• Lowering weights (negative phase of lifts)
• Jump landings

Instead:

• Walk on flat surfaces
• Use elevators for descending
• Focus on concentric movements if doing any resistance work

3. Favor Pool-Based Exercise

Water exercise offers unique benefits:

• Buoyancy supports body weight
• Reduces eccentric loading
• Provides gentle resistance
• Easier movement for weakened muscles
• Often enjoyable

4. Prioritize Stretching

Maintaining flexibility prevents contractures:

• Daily stretching of all major muscle groups
• Focus on areas prone to tightening (calves, hips, hamstrings)
• Gentle, sustained stretches (30-60 seconds)
• May require assistance from caregiver or therapist

5. Listen to Your Body

Warning signs to stop:

• Unusual fatigue lasting more than 30 minutes post-exercise
• Increased weakness
• Muscle pain beyond mild soreness
• Feeling worse the next day

Recommended Activities

Walking (If Ambulatory)

For those who can walk:

• Flat surfaces only
• Short distances, frequent rest
• Appropriate walking aids as needed
• Avoid uneven terrain

Swimming and Water Exercise

Often the best option:

• Recreational swimming
• Water walking
• Gentle water aerobics
• Floating and movement in water

Benefits:

• Supports body weight
• Allows movement otherwise difficult
• No eccentric muscle work
• Cardiovascular benefits
• Fun and social

Cycling (Stationary)

Low-impact option:

• Recumbent bikes are more accessible
• Very low resistance
• Comfortable duration (not to exhaustion)
• Good for maintaining leg function

Range of Motion Exercises

Essential at all stages:

• Move each joint through its full range
• Can be active (you move) or passive (someone assists)
• Daily practice
• Prevents joint stiffness and contractures

Breathing Exercises

Important as respiratory muscles weaken:

• Deep breathing practice
• Incentive spirometry
• Techniques taught by respiratory therapy
• Maintains lung function

Gentle Yoga or Stretching

Adapted for ability level:

• Focus on flexibility, not strength
• Supported poses
• Breathing integration
• Chair or mat-based depending on ability

Exercises to Avoid

High-Intensity Training

Any exercise that causes significant exertion:

• Running or jogging
• High-intensity intervals
• Aerobics classes
• Sports requiring bursts of effort

Resistance Training (for most types)

Traditional strength training may cause harm:

• Weightlifting
• Resistance machines
• High-resistance band work

Note: Some milder forms (FSHD, some limb-girdle) may tolerate carefully supervised, very light resistance training. Discuss with your neuromuscular specialist.

Eccentric-Heavy Activities

• Walking downhill
• Step aerobics
• Jumping
• Running downstairs

Exhausting Activities

Anything that leads to significant fatigue or muscle soreness.

Exercise by Functional Level

Ambulatory (Walking Independently)

Focus: Maintain walking ability, prevent contractures, gentle conditioning

Activities:

• Walking (flat, short distances)
• Swimming
• Stationary cycling
• Daily stretching
• Breathing exercises

Ambulatory With Assistance

Focus: Preserve remaining mobility, range of motion, prevent complications

Activities:

• Supported walking
• Pool exercise
• Seated exercises
• Range of motion (active and assisted)
• Stretching with assistance

Wheelchair Users

Focus: Upper body function, flexibility, respiratory health, comfort

Activities:

• Arm movements and exercises (gentle)
• Stretching (assisted)
• Range of motion (passive if needed)
• Breathing exercises
• Pool therapy (with support)

Sample Exercise Programs

For Ambulatory Adults (Mild to Moderate)

Daily:

• Stretching routine: 15-20 minutes
• Walking: 10-20 minutes (flat surface)
• Breathing exercises: 5 minutes

3x weekly:

• Pool exercise: 20-30 minutes
• Or stationary cycling: 10-15 minutes (low resistance)

For Children With DMD

Daily:

• Stretching with parent/caregiver: 20-30 minutes (focus on calves, hip flexors, IT band)
• Breathing exercises: 5 minutes

3x weekly:

• Pool play/swimming: 20-30 minutes
• Gentle, fun movement activities

For Wheelchair Users

Daily:

• Passive range of motion: all joints
• Active range of motion for functioning muscles
• Stretching: 15-20 minutes
• Breathing exercises: 10 minutes

2-3x weekly:

• Pool therapy (with assistance and support)
• Any active movement tolerated

Working With Healthcare Providers

Neuromuscular Specialist

Your neurologist or neuromuscular specialist should:

• Approve your exercise plan
• Provide specific restrictions
• Monitor for overexertion effects
• Adjust recommendations as disease progresses

Physical Therapist

Ideally with neuromuscular experience:

• Design individualized program
• Teach proper stretching techniques
• Monitor function over time
• Adapt exercises as needed
• Train caregivers in assisted exercises

Occupational Therapist

Helps with:

• Adaptive equipment
• Energy conservation
• Maintaining daily activities

Respiratory Therapist

Important as breathing muscles weaken:

• Breathing exercise instruction
• Monitoring respiratory function
• Airway clearance techniques

Caregiver Involvement

As MD progresses, exercise often requires assistance:

Passive Range of Motion

Caregiver moves the person's limbs through comfortable ranges:

• Prevents joint contractures
• Maintains flexibility
• Should be gentle and pain-free
• Requires proper training

Stretching Assistance

Helping achieve and hold stretches:

• Support limbs during stretches
• Never force past comfortable range
• Learn proper technique from PT

Transfer and Positioning

For pool exercise or equipment:

• Safe transfer techniques
• Proper positioning for exercises
• Equipment use (pool lifts, etc.)

Monitoring and Adjusting

Signs Exercise Is Appropriate

• Feel good during and after
• No lasting fatigue (recovers within 30 minutes)
• No increased weakness
• Maintaining or slowly declining function (expected with MD)

Signs to Reduce Activity

• Unusual fatigue lasting hours
• Weakness after exercise
• Muscle pain or cramping
• Feeling worse than baseline

Regular Assessment

Work with your medical team to:

• Monitor strength and function over time
• Adjust exercise as disease progresses
• Ensure you're not overdoing it

Quality of Life Focus

Exercise for muscular dystrophy isn't about getting stronger—it's about:

• Maintaining what you have
• Staying comfortable
• Preventing complications
• Enjoying movement and activity
• Living as fully as possible

Gentle, appropriate activity contributes to better days, even as the disease progresses.

The Bottom Line

Exercise with muscular dystrophy requires a careful, individualized approach:

• Stay submaximal—never exercise to fatigue
• Prioritize stretching and range of motion
• Favor pool-based exercise when possible
• Avoid eccentric and high-intensity activities
• Work closely with your medical team
• Adjust as the disease progresses

Movement matters, even gentle movement. The right exercise program can help maintain function and quality of life while avoiding activities that cause harm.

Your muscles may be vulnerable, but thoughtful activity can help you make the most of what they can do.