Stroke: Understanding, Managing, and Improving Function

Stroke is a leading cause of disability worldwide, affecting movement, coordination, cognition, and overall function. While the initial brain injury cannot be reversed, targeted rehabilitation and exercise interventions can significantly improve strength, mobility, independence, and quality of life. Accredited Exercise Physiologists play a key role in guiding individuals through safe and effective programs following stroke.

A stroke occurs when blood flow to part of the brain is interrupted, either due to a blockage (ischaemic stroke) or bleeding (haemorrhagic stroke). This disruption leads to brain cell damage, resulting in impairments that vary depending on the location and severity of the stroke.

These impairments can affect:

• Functional tasks such as walking, transferring, and reaching
• Coordination and balance
• Muscle strength and control

Types of Stroke

Ischaemic Stroke (most common)

• Caused by a blockage in a blood vessel supplying the brain
• Often due to a blood clot or atherosclerosis

Haemorrhagic Stroke

• Caused by bleeding in or around the brain
• Often associated with high blood pressure or aneurysm

Transient Ischaemic Attack (TIA)

• Temporary blockage with stroke-like symptoms
• Often a warning sign for future stroke risk

Common Symptoms

• Weakness or paralysis on one side of the body
• Reduced coordination and balance
• Difficulty walking or performing daily tasks
• Speech and communication difficulties
• Cognitive impairments (memory, attention, problem-solving)
• Fatigue and reduced endurance
• Pain and secondary complications such as shoulder subluxation

Risk Factors

Although stroke can occur suddenly, several risk factors increase likelihood:

Modifiable:

• High blood pressure
• Physical inactivity
• Smoking
• Diabetes
• High cholesterol

Non-modifiable:

• Age
• Family history
• Previous stroke or TIA

How Exercise Helps

Exercise is a cornerstone of stroke rehabilitation. Research demonstrates that structured exercise programs can improve cardiovascular fitness, muscle strength, balance, and functional mobility. Regular physical activity also supports neuroplasticity, allowing the brain to reorganise and adapt following injury.

From a functional perspective, exercise improves independence in daily activities such as walking, transferring, and self-care. It also reduces the risk of recurrent stroke and secondary conditions such as cardiovascular disease and deconditioning.

What the Research Says

Cardiovascular & Strength Training

Du et al., 2025 (Umbrella Review):

• Exercise significantly improves mobility, physical function, and participation post-stroke
• Improvements seen in gait speed, muscle strength, and cardiovascular fitness

Lee et al., 2022 (Systematic Review):

• Structured rehabilitation improves strength, functional ability, and activities of daily living
• Active rehabilitation is more effective than rest

Task-Specific & Functional Training

• Task-oriented training (walking, sit-to-stand) is highly effective
• Combined training approaches produce superior outcomes

Neuroplasticity & Recovery

• Exercise supports brain recovery across all stages post-stroke
• Different exercise types are beneficial at different recovery stages

Key Takeaways

• Improves strength, balance, gait, and independence
• Enhances neuroplasticity
• Reduces risk of secondary complications and recurrent stroke

The Importance of a Holistic Approach

A comprehensive rehabilitation program integrating strength, balance, cardiovascular fitness, and functional training provides the most effective outcomes following stroke.

• Targets impairments such as weakness, poor coordination, and reduced endurance
• Improves functional capacity and movement efficiency
• Enhances independence and participation in daily life
• Reduces fall risk and secondary complications

From an exercise physiology perspective, combining these elements supports long-term recovery, improves quality of life, and promotes sustained engagement in physical activity.