
Muscle spasms, or cramps, are painful contractions and tightening of the muscles. They are common, involuntary, and unpredictable. While they are usually not serious, they can sometimes indicate an underlying neurological condition called dystonia, which results in unwanted muscle contractions or spasms. Dystonia can be acquired through brain damage from trauma, such as a brain injury, stroke, or another type of injury. Spasticity, a feeling of muscle stiffness and involuntary contractions, can also occur as a result of trauma to the brain. It is characterized by uncontrolled muscle overactivity due to disrupted signals from the brain. While spasticity and dystonia can occur after trauma, they can also be caused by other factors such as multiple sclerosis, medication exposure, or heavy metal poisoning.
| Characteristics | Values |
|---|---|
| What is it called? | Spasticity, Muscle Spasms, Muscle Cramps, Dystonia, Myoclonus |
| What does it feel like? | Involuntary tightening or relaxing of a limb, Jerking of muscles, Muscle stiffness, Muscle contractions |
| What causes it? | Brain injury, Stroke, Progressive neurological condition, Multiple Sclerosis, Trauma, Lack of oxygen at birth, Exposure to certain medications, Heavy metal or carbon monoxide poisoning, Genetic mutations |
| Risk factors | Not enough stretching, Muscle fatigue, Exercising in extreme heat, Dehydration, Electrolyte imbalance, High-intensity exercise, Sitting for long periods, Overusing muscles, Standing or working on concrete floors, Sitting improperly |
| Treatment | Muscle relaxants, Stretching, Massage, Medication, Botulinum toxin injections, Surgery, Deep brain stimulation, Immunotherapy |
| Prevention | Avoid extremes of temperature, Move positions regularly, Stay hydrated, Avoid overexertion of muscles |
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What You'll Learn

Spasticity after trauma
Spasticity is a feeling of muscle stiffness and/or involuntary muscle contractions. This can occur as a result of a brain injury, stroke, or progressive neurological condition such as Multiple Sclerosis. It is caused by damage to parts of the brain or spinal cord that control movement, resulting in uncontrolled muscle overactivity. Spasticity can cause pain, muscle weakness, and restricted movement, and it can interfere with one's ability to perform simple tasks. It can be exacerbated by various triggers, such as infection, constipation, pain, stress, uncomfortable clothing, and extreme temperatures.
Spasticity is commonly associated with traumatic brain injuries (TBIs). Those who have experienced severe TBIs may exhibit symptoms of spasticity, including muscle stiffness, uncontrolled muscle contractions, and overactive reflexes. The severity of spasticity can vary, and some individuals may not experience any significant impact on their daily lives. However, for others, even simple movements can become challenging.
Treatment options for spasticity aim to relax the muscles and improve overall function. Medications such as muscle relaxants and intrathecal baclofen are often used, especially when multiple muscles are affected. Botulinum toxin injections can also be administered directly into the affected muscles to help them relax. Physiotherapy and occupational therapy play a crucial role in managing spasticity. This includes exercises, stretching, wearing splints or orthotics, and reviewing positioning to ensure comfort and skin protection.
In some cases, surgery may be considered as a treatment option for spasticity. Nerve blocks and intrathecal baclofen pumps can help reduce the frequency and intensity of spasms. It is important to carefully weigh the risks and benefits of surgical procedures and to follow the advice of medical professionals. Spasticity can impact individuals differently, and treatment plans should be tailored accordingly. Working closely with a medical and therapy team is essential for effective management of spasticity after trauma.
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Neurological movement disorders
Movement disorders are a group of neurological conditions that cause abnormal, involuntary movements. These can be either increased movements, such as spasms, jerking, or shaking, or decreased/slow movements.
Any damage to or malfunction of the areas of the brain that control movement can result in a movement disorder. There are several different movement disorders, and they vary in severity. Some examples of movement disorders include:
- Restless Leg Syndrome (RLS): A sleep disorder that causes an irresistible urge to move one's limbs, often accompanied by sensations like pulling, creeping, and throbbing.
- Rett Syndrome: A rare genetic condition that affects speech, purposeful hand use, and coordination. It is caused by mutations in the MECP2 gene and results in debilitating symptoms, including reduced muscle tone and repetitive hand movements.
- Tardive Dyskinesia (TD): Characterized by repetitive, involuntary movements such as grimacing, lip-smacking, and rapid leg and arm movements. It is often caused by long-term use of antipsychotic medications.
- Tourette Syndrome: A neurological disorder that causes sudden movements or sounds (tics) and is often accompanied by anxiety, ADHD, and obsessive-compulsive disorder.
- Wilson's Disease: A genetic disorder that causes excessive copper accumulation in the liver or brain, leading to liver disease and neurological problems. Physical signs include tremors and difficulty in walking, talking, or swallowing.
Diagnosing movement disorders can be complex as they may mimic other conditions. Healthcare professionals typically perform a detailed history, physical exam, and neurological exam. They may also order additional tests such as blood tests, electromyography (EMG), electroencephalogram (EEG), lumbar puncture, and imaging tests to help diagnose specific movement disorders and rule out other conditions.
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Dystonia
The key symptom of dystonia is uncontrollable muscle movements, which can be uncomfortable or painful, feeling like electric shocks. These movements are often repetitive, variable in duration, and twisting or stretching in nature. Dystonia can affect an individual's whole body or just one part, and it can start at any age. The effects of dystonia can be exacerbated by fatigue, stress, caffeine, or alcohol consumption.
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Myoclonus
There are several types of myoclonus, including:
- Action myoclonus, which is triggered by voluntary movement or the intention to move.
- Epileptic myoclonus, which occurs within an epilepsy syndrome, such as Juvenile myoclonic epilepsy (JME) and Lennox-Gastaut Syndrome.
- Pathologic myoclonus, which is caused by an underlying disorder of the brain or nerves and may be a reaction to certain medications.
- Essential myoclonus, which occurs in the absence of epilepsy or other apparent abnormalities in the brain or nerves and is typically stable without worsening over time.
- Sleep myoclonus (hypnic myoclonus), which occurs during sleep transitions, often as a person is falling asleep.
- Stimulus-sensitive myoclonus, which is triggered by external stimuli such as noise, movement, light, or surprises.
- Positive myoclonus, which is caused by sudden muscle contractions.
- Negative myoclonus, which is caused by brief lapses of contraction.
While myoclonus can occur in otherwise healthy individuals and may not require medical treatment, it is important to seek medical advice if persistent or widespread myoclonic jerks occur, as they can be a sign of various nervous system disorders or neurological conditions, such as multiple sclerosis, Parkinson's disease, dystonia, cerebral palsy, or epilepsy.
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Treatments for muscle spasms
Muscle spasms are usually not something to worry about and often go away without treatment. However, they can sometimes indicate an underlying neurological condition. If muscle spasms are affecting your quality of life or are accompanied by other symptoms, it is important to seek advice from a healthcare provider.
There are several treatment options available for muscle spasms, including:
- Medications: Muscle relaxants can help ease the symptoms of muscle spasms. In cases where an underlying neurological condition is the cause, antispasmodic medications may be prescribed. Baclofen is the most commonly used intrathecal medication, often administered through a pump implanted in the abdomen.
- Botulinum Toxin Injections: These injections can be used to relax the muscles experiencing spasticity.
- Therapy: Physiotherapy and/or occupational therapy can help manage muscle spasms. This may involve exercises, stretching, and reviewing positioning.
- Heat and Ice: Applying heat or ice to the affected area can help soothe muscle spasms.
- Stretching and Massage: Gently stretching and massaging the affected muscle can provide relief.
- Addressing Dietary Issues: Ensuring adequate intake of water, potassium, calcium, magnesium, vitamin D, and vitamin B12 can help prevent muscle spasms.
- Managing Stress and Anxiety: Stress and anxiety can contribute to muscle tension and spasms, so finding ways to manage these can be beneficial.
- Surgery: In some cases, surgery may be an option to consider for treating muscle spasms.
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Frequently asked questions
Spasticity is the uncontrolled overactivity of muscles caused by disrupted signals from the brain. It is common in people with severe traumatic brain injuries (TBIs). It can cause involuntary muscle contractions or spasms.
People with spasticity may feel as if their muscles have tightened and will not relax or stretch. They may also experience muscle weakness, loss of fine motor control, and overactive reflexes. Spasticity can cause pain and restrict movements.
Treatment for spasticity includes medication, Botulinum Toxin injections, and surgery. Therapy, such as physiotherapy or occupational therapy, is also recommended alongside medical treatments. This may involve exercises, stretching, wearing splints, and reviewing positioning.




































