Objective: Skater's cramp is a debilitating disorder in expert speedskaters and recent evidence from muscle and movement studies nominate it is a task-specific dystonia (TSD). Building on these studies we investigated clinical features and personality in skater's cramp, hypothesizing that similar to other TSDs, trait emotionality would be higher in affected skaters.
Methods: In a cross-sectional study we employed the HEXACO inventory to examine the personality of a cohort of skaters with skater's cramp (n = 26) compared to age, sex, and experience-matched controls (n = 28). Affected skaters were selected based on relevant clinical features important to the diagnosis of TSD.
Results: Sentimentality (a sub-factor of emotionality) was higher in affected skaters, but only in the male population. Extraversion was lower in skaters with skater's cramp. Clinical findings resembled other forms of TSD.
Discussion: Higher sentimentality is in line with previous studies in TSD. Lower Extraversion in affected skaters was an unexpected finding that may be a new feature of skater's cramp and TSD. Due to our small sample size and cross-sectional design, these findings are preliminary, but offer tentative evidence of personality differences in skater's cramp in line with TSD.
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| http://dx.doi.org/10.1016/j.jpsychores.2023.111440 | DOI Listing |
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Personality in speed skaters with skater's cramp: A preliminary cross-sectional study.
J Psychosom Res
October 2023
University Groningen, University Medical Center Groningen, Department of Neurology, NL-9700 RB Groningen, the Netherlands. Electronic address:
Objective: Skater's cramp is a debilitating disorder in expert speedskaters and recent evidence from muscle and movement studies nominate it is a task-specific dystonia (TSD). Building on these studies we investigated clinical features and personality in skater's cramp, hypothesizing that similar to other TSDs, trait emotionality would be higher in affected skaters.
Methods: In a cross-sectional study we employed the HEXACO inventory to examine the personality of a cohort of skaters with skater's cramp (n = 26) compared to age, sex, and experience-matched controls (n = 28).
Muscular and kinematic features in speed skaters indicate a task-specific dystonia.
Clin Neurophysiol
May 2023
Leiden Institute of Advanced Computer Science (LIACS), P.O. Box 9512, 2300 RA Leiden, The Netherlands.
Article Synopsis
- The study aimed to investigate skater's cramp, a movement disorder in speed skaters, to see if it shares characteristics with task-specific dystonia, focusing on muscle activity and abnormal movements during skating.
- Researchers analyzed data from 14 affected skaters, comparing their muscle activity and movements to skilled controls, and found that the impacted legs showed over-activity in specific muscles regardless of skating intensity.
- The findings suggest that skater's cramp is a form of task-specific dystonia, emphasizing the importance of accurate diagnosis to prevent harmful treatments, and the study's methods may help evaluate future treatment options.
Inter-muscular coherence in speed skaters with skater's cramp.
Parkinsonism Relat Disord
February 2023
Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Expertise Center Movement Disorders Groningen, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
Introduction: Skater's cramp is a career-ending movement disorder in expert speed skaters noted to be a likely task-specific dystonia. In other movement disorders, including task-specific dystonia, studies have found evidence of central dysregulation expressed as higher inter-muscular coherence. We looked at whether inter-muscular coherence was higher in affected skaters as a possible indicator that it is centrally driven, and by extension further evidence it is a task-specific dystonia.
View Article and Find Full Text PDFSkater's Cramp: A Possible Task-Specific Dystonia in Dutch Ice Skaters.
Mov Disord Clin Pract
September 2019
Department of Neurology University Medical Center Groningen, University Groningen Groningen the Netherlands.
Background: Skater's cramp is an involuntary lower leg movement in skilled speed skaters. We aim to evaluate whether skater's cramp is compatible with task-specific dystonia.
Methods: A case-control study tested 5 speed skaters exhibiting symptoms of skater's cramp and 5 controls.
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