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Related Experiment Videos

Runner's dystonia.

Laura J C Wu1, Joseph Jankovic

  • 1Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX, USA.

Journal of the Neurological Sciences
|November 14, 2006
PubMed
Summary
This summary is machine-generated.

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Adult-onset focal dystonia can affect the lower limbs, particularly in athletes, and is often misdiagnosed. Early recognition and treatments like carbamazepine or botulinum toxin injections can be effective for this rare condition.

Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Adult-onset focal dystonia is well-documented in upper limbs but rarely reported in lower limbs.
  • Proximal lower limb dystonia in athletes is often misdiagnosed as orthopedic disorders.

Observation:

  • Five cases of adult-onset focal dystonia in the proximal lower limbs of long-distance runners are presented.
  • Symptoms included dystonia during running, relieved by sensory/motor tricks, and shared features with paroxysmal dyskinesia.
  • Two patients had prior leg injury, suggesting potential peripheral induction.

Findings:

  • Patients responded to various treatments including carbamazepine, anticholinergics, levodopa, and botulinum toxin injections.
  • Unlike childhood-onset dystonia, these cases lacked family history and did not spread to other body parts.

Related Experiment Videos

  • The mean age of onset was 37.4 years, with symptoms lasting an average of 7.2 years.

    • Implications:

    • Highlights a rare, disabling form of adult-onset focal dystonia in the proximal lower limbs.
    • Emphasizes the importance of early diagnosis to enable effective treatment.
    • Suggests potential for peripherally-induced dystonia in athletes with prior leg injury.