title: "Gunslinger's gait": a new cause of unilaterally reduced arm swing.
abstract: OBJECTIVE
  To postulate a new possible cause of a unilaterally reduced arm swing in addition to the known medical conditions such as shoulder pathology, Erb's palsy, stroke, and Parkinson's disease.
  
  
  METHODS
  Analysis of YouTube videos depicting the gait of highly ranked Russian officials.
  
  
  RESULTS
  We found a similar walking pattern in President Vladimir Putin, Prime Minister Dmitry Medvedev and three other highly ranked Russian officials, all presenting with a consistently reduced right arm swing in the absence of other overt neurological abnormalities.
  
  
  CONCLUSIONS
  We propose that this new gait pattern, which we term "gunslinger's gait," may result from a behavioural adaptation, possibly triggered by KGB or other forms of weapons training where trainees are taught to keep their right hand close to the chest while walking, allowing them to quickly draw a gun when faced with a foe. This should be included in the differential diagnosis of a unilaterally reduced arm swing.
authors.affiliation: Department of Neurology, Coimbra Hospital and University Centre, Coimbra, Portugal.
authors.forename: Rui
authors.initials: R
authors.lastname: Araújo
authors.affiliation: Clinical Pharmacology Unit, Institute of Molecular Medicine, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
authors.forename: Joaquim J
authors.initials: JJ
authors.lastname: Ferreira
authors.affiliation: Department for Parkinson's Disease, IRCCS San Camillo, Venice, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Antonini
authors.affiliation: Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands bas.bloem@radboudumc.nl.
authors.forename: Bastiaan R
authors.initials: BR
authors.lastname: Bloem
mesh_terms: D001132:Arm / Q000503:physiopathology*; D001696:Biomechanical Phenomena; D003937:Diagnosis, Differential; D005197:Famous Persons; D020233:Gait Disorders, Neurologic / Q000175:diagnosis / Q000503:physiopathology*; D006801:Humans; D008889:Military Personnel; D009784:Occupational Diseases / Q000175:diagnosis / Q000503:physiopathology*; D010300:Parkinson Disease / Q000175:diagnosis / Q000503:physiopathology*; D011597:Psychomotor Performance; D012426:Russia; D016138:Walking