Related Experiment Video
Updated: May 28, 2026
08:23
Standing Neurophysiological Assessment of Lower Extremity Muscles Post-Stroke
Published on: July 26, 2021
Restless Legs Syndrome and Neurological Comorbidities: A Narrative Review.
Kyrillos Ghattas1,2, Helen Hernandez3, Yongwoon Huh1,2
1Jefferson Sleep Disorders Center, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA.
Journal of Clinical Medicine
|May 27, 2026
Summary
Restless legs syndrome (RLS) is a common neurological disorder often linked with other conditions. This review explores RLS prevalence, outcomes, and shared mechanisms in diseases like Parkinson's and multiple sclerosis.
Area of Science:
- Neurology
- Sleep Medicine
- Neuroscience
Background:
- Restless legs syndrome (RLS) is a common neurological disorder with an irresistible urge to move legs.
- RLS frequently co-occurs with other neurological diseases, suggesting shared underlying mechanisms.
- Understanding these connections is crucial for diagnosis and treatment.
Purpose of the Study:
- To review the prevalence, outcomes, and pathophysiology of RLS in various neurological disorders.
- To explore shared mechanisms between RLS and its comorbidities.
- To highlight the clinical impact of RLS in neurological conditions.
Main Methods:
- Systematic review of existing literature.
- Synthesis of evidence on RLS in Parkinson's disease, multiple sclerosis, migraine, dementia, stroke, epilepsy, and peripheral neuropathy.
- Analysis of overlapping pathophysiological pathways.
Main Results:
- RLS is linked to disease progression in Parkinson's disease and specific lesions in stroke and multiple sclerosis.
- In epilepsy, RLS correlates with refractory or nocturnal seizures; in neuropathies, small fiber disruption may play a role.
- RLS exacerbates sleep quality, mood, fatigue, and overall quality of life in patients with neurological disorders.
Conclusions:
- Shared mechanisms involving sensorimotor processing, brainstem/spinal circuitry, and sleep regulation link RLS with neurological comorbidities.
- RLS significantly worsens patient outcomes and quality of life in these conditions.
- Future research needs longitudinal, standardized, and mechanistically focused studies.
Related Concept Videos
01:27Restless Leg Syndrome and Night Terrors
Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
01:15REM Sleep Behavior Disorder
REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
RBD is significantly associated with...
01:19Multiple Sclerosis l: Introduction
Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
01:12Alterations in Muscle Tone ll
Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
01:11Alterations in Muscle Tone lll
Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
01:28Disorders of the Nervous Tissue
Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...