Paradoxical relationship in sensorimotor system: Knee joint position sense absolute error and joint stiffness measures

Relationships between joint position sense and the sensorimotor characteristics such as joint stiffness, time to detect motion, and time to peak torque during a perturbation test have rarely been investigated due to methodological challenges. The purpose of this study was to compare joint position s...

Full description

Saved in:
Bibliographic Details
Published in:Clinical biomechanics (Bristol) 2019-07, Vol.67, p.34-37
Main Authors: Nagai, Takashi, Bates, Nathaniel A., Hewett, Timothy E., Schilaty, Nathan D.
Format: Article
Language:English
Subjects:
Joint position sense
Paradoxical relationship
Sensorimotor system
Stiffness
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Relationships between joint position sense and the sensorimotor characteristics such as joint stiffness, time to detect motion, and time to peak torque during a perturbation test have rarely been investigated due to methodological challenges. The purpose of this study was to compare joint position sense and the sensorimotor characteristics in healthy individuals. A total of 26 subjects were recruited and completed joint position sense and a perturbation test on isokinetic dynamometer. Joint position sense was assessed by comparison of the absolute angle difference between a reference and replicated position. During the perturbation test, the dynamometer moved the knee flexion angle from 70° to 30° (0° represents a full knee extension) at the velocity of 500° per second at random. Subjects were asked to react and pull back the leg as soon as they perceived the movement. Pearson or Spearman's correlation coefficients were used to assess these relationships (P 
ISSN:0268-0033
1879-1271
DOI:10.1016/j.clinbiomech.2019.04.021