
Attention-deficit/hyperactivity disorder (ADHD) is a complex neuropsychiatric condition with broad impacts on individuals' lives. While ADHD is often associated with increased muscle tension, the link between the two is not yet fully understood. This paragraph will explore the relationship between ADHD and muscle tension, discussing current research, potential causes, and treatment options.
| Characteristics | Values |
|---|---|
| Muscle tension | More frequent in people with ADHD |
| Muscle pain | More frequent in people with ADHD |
| Motor problems | More frequent in people with ADHD |
| Muscle regulation problems | More frequent in people with ADHD |
| Muscle release problems | More frequent in people with ADHD |
| Muscle twitching | Can be a side effect of stimulant medications for ADHD |
| Muscle pain and stiffness | Can be a side effect of dexmethylphenidate and lisdexamfetamine |
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What You'll Learn

Muscle tension and impaired sleep in ADHD
ADHD is often associated with increased muscle tension, particularly in the shoulder and neck area. While the exact neurophysiological cause is unknown, studies have shown a link between ADHD and heightened muscle tone and motor inhibition problems. This can result in restricted movement and pain, especially in the back, shoulder, hip, and leg areas.
People with ADHD may experience muscle pain and stiffness as a side effect of certain stimulant medications used to treat the disorder, such as dexmethylphenidate and lisdexamfetamine. However, other stimulant medications, such as non-amphetamine stimulants, have not been found to cause significant muscle pain without other serotonin-related symptoms. In some cases, stimulant medications can improve muscle tension in patients with untreated ADHD.
The comorbidity of ADHD and chronic pain is well-documented in adults, and studies suggest that neuroinflammation may play a role in altered pain perception and pain sensitization in individuals with ADHD. Additionally, there may be a connection between muscle release problems and the dysregulation of higher executive functions associated with ADHD, impacting both gross movements and fine motor skills.
Impaired sleep is commonly associated with ADHD, and this may contribute to muscle tension. During undisturbed deep sleep, muscles further away from the trunk relax first, followed by those closer to the spine. However, individuals with ADHD often experience sleep disturbances, which can prevent the muscles from fully relaxing and contribute to muscle tension.
While the relationship between ADHD and muscle tension is complex, there are treatment options available. Low-dose naltrexone has been found to help with both ADHD symptoms and muscle tension. Other treatments include paracetamol, magnesium, and myotonolytics, which have a muscle-relaxing effect but may have side effects and are less suitable for long-term use.
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Neuroinflammation and altered pain perception
While the exact cause of muscle tension in ADHD is not yet fully understood, there is a growing body of research that suggests a link between ADHD and altered pain perception through neuroinflammation.
Neuroinflammation is a possible link between ADHD and pathological pain, which are both complex syndromes with multiple causes. Neuropsychiatric conditions such as ADHD and altered pain perception have been observed to coexist, particularly in children, and the comorbidity of ADHD and chronic pain is well-documented in adults.
Pathophysiological studies have suggested that dysfunction of the dopaminergic system may be a common neurochemical basis for the comorbidity of ADHD and pain. There is also considerable evidence that neuroinflammation plays a role in the pathophysiology of both ADHD and pain. Central neuroinflammation, in particular, is thought to underlie altered pain perception and pain sensitization in people with ADHD.
The Pain in Psychiatric Conditions (PiPCo) project comprises both preclinical and clinical studies that investigate subjective pain experiences and pain perceptions in children and adolescents with newly diagnosed ADHD while monitoring their inflammatory biological markers. Smaller studies have found increased pain sensitivity in adults with ADHD.
The clinical portion of the PiPCo project aims to compare the subjective pain experiences and pain perceptions of children with ADHD only, with ADHD and autism spectrum disorder (ASD), and with ADHD and other co-occurring psychiatric conditions. By investigating these relationships, researchers hope to better understand the role of neuroinflammation in altered pain perception and its potential as a therapeutic target for treating ADHD and comorbid pain.
In addition to the potential role of neuroinflammation, other factors may also contribute to muscle tension in people with ADHD. For example, motor inhibition problems and heightened muscle tone have been observed in children and adults with ADHD, which may be associated with restricted movement and contribute to pain. Impaired sleep, which is commonly associated with ADHD, may also play a role in muscle tension.
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Motor inhibition problems in adults with ADHD
ADHD is often associated with increased muscle tension. This heightened muscle tension is especially noticeable in the shoulder and neck area. A possible explanation for this is that muscles further away from the trunk (spine) relax first during sleep, while those on the spine relax last. These muscles require undisturbed deep sleep to relax, and impaired sleep is common in people with ADHD.
Motor inhibition problems are highly present in adults with ADHD. Adults with ADHD often complain about back, shoulder, hip, and leg pain. They also report more widespread pain and higher levels of pain than non-ADHD adults. These motor problems are associated with heightened muscle tone in gross movement muscles and specific motor inhibition problems that result in restricted movement and instability.
A recent study found that young adults with ADHD had more difficulty inhibiting a motor response when performing a continuous motor task compared to young adults without ADHD. The participants with ADHD also produced more force during the task, and the amount of force was related to self-reported ADHD symptoms of inattention, hyperactivity, and impulsivity.
Another study found that adults with ADHD showed problems on subtests that reveal heightened muscle tone in the latissimus dorsi, iliopsoas, and gastrocnemius-soleus (calf) muscles. Heightened muscle tone was also demonstrated in the sacrospinalis by subtest 11, 'Palpation'. These subtests are closely monitored by the tester or performed by the tester, so they are unlikely to be influenced by inattention or impulsivity.
The presence of significantly higher pain levels and more widespread pain in adults with ADHD compared to non-ADHD adults suggests that pain may be a long-term secondary effect of heightened muscle tone and restricted movement. This could also contribute to the high incidence of substance abuse and addiction problems in people with ADHD.
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Muscle pain and stiffness caused by stimulant medications
Stimulant medications used to treat ADHD have been reported to cause muscle pain and stiffness in some patients. Lisdexamfetamine, an amphetamine stimulant, is well-known to cause muscle pain and stiffness, and there is data suggesting that the combination medication dextroamphetamine-amphetamine may have similar effects. These medications can also lead to serotonin syndrome, which may include severe muscle twitching, rigidity, and loss of muscle coordination.
Other stimulant medications, such as methylphenidates, have also been associated with muscle pain and stiffness in some cases. However, the literature suggests that these symptoms are less common with non-amphetamine stimulants. For example, an extensive literature review found only one case where a child on methylphenidate experienced muscle pain along with other symptoms.
The muscle pain and stiffness caused by stimulant medications may be due to the over-stimulation of skeletal muscle fibers by excessive dopamine. Dopamine is a key neurotransmitter that is known to directly modulate muscle tone. While increased dopamine levels can explain increased muscle tension, twitching, and stiffness, it is unlikely to be the sole cause of severe muscle pain. Other factors, such as local rhabdomyolysis, may also contribute to the pain experienced by some patients.
It is important to note that muscle tension, pain, and stiffness are also commonly associated with ADHD itself. Studies have found that adults with ADHD have significantly more motor problems and widespread pain compared to those without ADHD. This suggests that pain may be a long-term secondary effect of heightened muscle tone and restricted movement associated with ADHD. However, more research is needed to fully understand the relationship between ADHD and muscle tension.
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Treatment options for muscle tension in ADHD
While the exact cause of muscle tension in ADHD is not yet fully understood, there are a variety of treatment options available to help manage this issue.
One possible explanation for muscle tension in individuals with ADHD is impaired sleep, as deep, undisturbed sleep is necessary for the muscles to relax. Treatment options that address sleep issues, such as improving sleep hygiene or medication that aids in sleep, may help reduce muscle tension.
Another approach to managing muscle tension in ADHD is through physical therapy and relaxation techniques. This can include the use of massage tools, such as percussion massagers or massage wands, to work out tight muscles and relieve tension. Additionally, individuals with ADHD can benefit from regular physical activity, such as yoga or Pilates, to improve mobility and reduce muscle tension.
Certain medications have also been found to be effective in treating muscle tension associated with ADHD. Low-dose naltrexone, for example, has been reported to help with muscle tension and ADHD symptoms, and is said to be virtually free of side effects. Paracetamol has also been mentioned as a treatment option for pain associated with muscle tension. Furthermore, muscle relaxants, such as methocarbamol (Robaxin) and non-steroidal anti-inflammatory drugs (NSAIDs) like meloxicam (Mobic), can be prescribed to alleviate muscle pain and inflammation.
It is important to note that while these treatments may provide relief, they should be used under the guidance of a medical professional to ensure safety and effectiveness for each individual's specific needs.
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Frequently asked questions
ADHD is often associated with increased muscle tension, particularly in the shoulder and neck area. However, the exact neurophysiological cause is still unknown.
Muscle tension caused by ADHD can lead to widespread pain in both the upper and lower body. It can also cause motor inhibition problems, resulting in jerky and uncoordinated movements.
Treatment options for muscle tension caused by ADHD include low-dose naltrexone, paracetamol, and magnesium. Stimulant medications can also improve muscle tension in some patients, but they may have side effects such as muscle twitching and stiffness.











































