Parkinsonian Rigidity Depends on the Velocity of Passive Joint Movement
Joint Authors
Endo, Takuyuki
Yoshikawa, Naoya
Sakoda, Saburo
Fujimura, Harutoshi
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-12-16
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Background.
It has been long believed that Parkinsonian rigidity is not velocity-dependent based on the neurological examination.
However, this has not been verified scientifically.
Methods.
The elbow joints of 20 Parkinson’s disease patients were passively flexed and extended, and two characteristic values, the elastic coefficient (elasticity) and the difference in bias (difference in torque measurements for extension and flexion), were identified from a plot of the angle and torque characteristics.
Flexion and extension were done at two different velocities, 60°/s and 120°/s, and a statistical analysis was performed to determine whether the changes in these characteristic values were velocity-dependent.
Results.
The elastic coefficient was not velocity-dependent, but the difference in bias increased in a velocity-dependent manner (P=0.0017).
Conclusions.
The features of rigidity may differ from the conventional definition, which states that they are not dependent on the velocity of joint movement.
American Psychological Association (APA)
Endo, Takuyuki& Yoshikawa, Naoya& Fujimura, Harutoshi& Sakoda, Saburo. 2015. Parkinsonian Rigidity Depends on the Velocity of Passive Joint Movement. Parkinson’s Disease،Vol. 2015, no. 2015, pp.1-4.
https://search.emarefa.net/detail/BIM-1075931
Modern Language Association (MLA)
Endo, Takuyuki…[et al.]. Parkinsonian Rigidity Depends on the Velocity of Passive Joint Movement. Parkinson’s Disease No. 2015 (2015), pp.1-4.
https://search.emarefa.net/detail/BIM-1075931
American Medical Association (AMA)
Endo, Takuyuki& Yoshikawa, Naoya& Fujimura, Harutoshi& Sakoda, Saburo. Parkinsonian Rigidity Depends on the Velocity of Passive Joint Movement. Parkinson’s Disease. 2015. Vol. 2015, no. 2015, pp.1-4.
https://search.emarefa.net/detail/BIM-1075931
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1075931