Apraxia is a neurological disorder that interferes with the ability to properly execute a movement. It can make it challenging for an individual to perform the activities of daily living and complex tasks that require sensory, motor, and coordination skills.

Apraxia is caused by damage to the areas of the brain responsible for movement and coordination. One of the most common types of apraxia after brain damage is buccofacial, or orofacial apraxia, which affects the ability to execute mouth and facial movements, including speech. Fortunately, apraxia can often be improved through a rigorous rehabilitation program.

This article will discuss the causes of apraxia after brain damage, different types, and treatments to help promote recovery.

Use the jump links below to navigate through the article:

• What causes apraxia?
• Types of apraxia
• Signs and symptoms of apraxia
• How to effectively treat apraxia

What Causes Apraxia After Brain Damage?

Apraxia refers to the inability to execute coordinated movements despite having the desire and capacity. Meaning, even if sensory and motor functions and coordination are intact, individuals with apraxia may struggle to carry out purposeful movements. To understand why this occurs, it first helps to know how the brain and muscles work together to execute movement.

The primary structures of the brain associated with motor control and coordination include the cerebellum, basal ganglia, frontal lobe, prefrontal cortex, and parietal lobe. These structures all work together to send signals to the muscles telling them when to move, contract, and relax.

When these areas of the brain are affected by a neurological injury or disease, they may no longer be able to communicate efficiently with the appropriate muscles. This disruption in communication can lead to various movement disorders, including apraxia.

Neurological conditions that can cause apraxia after brain damage include:

• Traumatic brain injury
• Stroke
• Brain tumor
• Dementia
• Hydrocephalus (build-up of fluid in the cavities or ventricles deep in the brain)
• Other neurodegenerative diseases

Apraxia may also appear after birth if the brain sustained damage in the areas that control movement. As a result, individuals may lose the ability to properly execute movements and perform the activities of daily living.

Fortunately, communication between the brain and muscles can be restored with neuroplasticity, the brain’s natural ability to rewire itself. It works by strengthening neural connections and creating new ones.

Neuroplasticity is best activated through high repetition of rehabilitation exercises. The more a movement is exercised, the more the brain will learn to recognize that movement and strengthen its neural connections. The stronger the communication between the brain and the affected muscles, the higher the chances of executing a movement successfully.

Types of Apraxia that Can Develop After Brain Damage

Several types of apraxia may occur after brain damage, depending on the structure(s) of the brain affected such as the basal ganglia or prefrontal cortex. Many types of apraxia may occur simultaneously or sequentially.

Some of the most common types of apraxia after brain damage include:

• Limb-kinetic apraxia refers to the inability to use a finger, arm, or leg to make fine, precise movements. For example, an individual may understand how to use a tool but may have difficulty using it and carrying out the same movement.
• Ideational apraxia makes it difficult for individuals to execute movements and perform tasks that involve more than one or multiple steps such as dressing, eating, bathing, or other activities of daily living.
• Ideomotor apraxia causes difficulty following verbal commands to copy movements or follow suggestions for movements.
• Verbal apraxia, also known as apraxia of speech, causes difficulty with coordinating the movements for speech. Individuals with verbal apraxia may know what they want to say but be unable to execute their words.
• Oculomotor apraxia affects the eye muscles, making it difficult to execute eye movements on command or appropriately like winking.
• Buccofacial or orofacial apraxia inhibits the ability to perform mouth or facial movements on command such as sticking out the tongue, whistling, or even coughing.
• Conceptual apraxia can cause difficulty using objects appropriately. For example, when asked to demonstrate how to use a screwdriver, an individual with conceptual apraxia may use it as a hammer instead.

While apraxia affects the coordination and execution of muscle movements, different types of apraxia may each present unique symptoms. Fortunately, many symptoms of apraxia can be improved with a rigorous rehabilitation regimen and other treatments, which are discussed later on.

Symptoms of Apraxia

Apraxia can affect various muscle movements depending on the root cause. Individuals may experience different signs and symptoms of apraxia depending on the type and severity of apraxia. A doctor or therapist can help individuals identify their exact type of apraxia and provide them with a unique treatment plan.

Generally, symptoms of apraxia can include:

• Lack of coordination
• Involuntary or unintentional movements
• Difficulty performing specific tasks
• Clumsy or inappropriate movements
• Difficulty reproducing patterns or drawings
• Trouble executing commands that were fully understood

More specific symptoms will depend on which type of apraxia an individual has. For example, survivors with limb-kinetic apraxia may have difficulty using their legs to walk or picking up objects with their arms.

Survivors with apraxia of speech may experience delayed speech, exaggerated movements of the lips and tongue, distortion of vowel sounds, or difficulty stringing syllables together. Some may also struggle with omitting consonants at the beginning and/or end of words. 

Studies show that apraxia of speech may also be accompanied by aphasia, the inability to comprehend or produce language.

Because there are many speech disorders, it’s important to consult with a speech-language pathologist and obtain a proper diagnosis. With a proper apraxia diagnosis, individuals may begin treatment, which often includes a combination of therapies.

How to Treat Apraxia After Brain Damage

Treatment for apraxia after brain damage revolves around stimulating the brain and activating neuroplasticity, the brain’s ability to rewire itself, as much as possible. This will help restore communication between the brain and the affected muscles, which is necessary to restore coordination and movement.

Rehabilitation exercises will depend on the type of apraxia an individual has and the muscles they want to improve. When survivors experience multiple types of apraxia disorders, such as apraxia of speech and limb-kinetic apraxia, therapists may recommend a combination of rehabilitation exercises to treat each condition separately.

Rehabilitation exercises for apraxia after brain damage may include:

• Physical therapy: typically focuses on improving mobility and strength within the body. Exercising the affected muscles can help activate neuroplasticity and restore communication between the brain and muscles. This type of therapy is particularly helpful for survivors with limb-kinetic or ideomotor apraxia.
• Occupational therapy: provides survivors with the tools they need to perform daily activities and helps them find compensatory tactics as they work toward recovery. Occupational therapy is particularly helpful for individuals with ideational apraxia or conceptual apraxia which makes it difficult to complete tasks that require more than one step.
• Speech therapy: focuses on improving speech and language disorders like apraxia of speech. Speech Language Pathologists provide a unique therapy plan that includes a variety of speech exercises such as lip articulation, tongue articulation, and coordination exercises. They may also recommend facial strengthening exercises to individuals with buccofacial or orofacial apraxia.

The more an individual practices rehab exercises, the higher their chances of restoring communication and improving muscle movement. Therefore, it’s important to keep the brain stimulated in between therapy sessions to see more promising results. Therapists can provide survivors with sheets of exercises they can do on their own at home.

However, these sheets may often become boring and cause individuals to lose motivation to exercise. To prevent this from happening, therapists may suggest using home therapy programs to keep survivors engaged.

For example, the CT Speech and Cognitive Therapy App provides access to speech and cognitive exercises that are helpful for individuals with apraxia of speech. Therapists can use the app to assign appropriate exercises and/or the app can assess the individual and assign exercises based on current areas that need improvement.

Overcoming Apraxia After Brain Damage

Apraxia is a motor disorder that makes it difficult to perform purposeful movements, such as speech. It occurs after damage to parts of the brain in charge of motor control. By engaging neuroplasticity through exercise, however, it may be possible to treat apraxia and regain full control of your muscles.

We hope this article helped you understand the various types of apraxia after brain damage and how to boost your recovery.

The post Apraxia After Brain Damage: Understanding the Causes, Types, & Treatments appeared first on Flint Rehab.