TY - JOUR
T1 - Reliability of stiffness measurement device during passive isokinetic spastic wrist movements of healthy subjects and hemiplegics
AU - Orand, Abbas
AU - Miyasaka, Hiroyuki
AU - Takeda, Kotaro
AU - Tanino, Genichi
AU - Chihara, Takeshi
AU - Beppu, Hidehiko
AU - Sonoda, Shigeru
N1 - Publisher Copyright:
© 2017 The Authors
PY - 2017
Y1 - 2017
N2 - The consistency of torque measurements during repetitive moving arm movements and also during passive wrist movements at two angular velocities of slow (∼6°/s) and moderate (∼120°/s) was investigated. The designed and developed device was applied to 3 cases, to a spring, to 8 able-bodied subjects and to 2 hemiplegic patients. While the mean of the intra-class correlation coefficient of subjects were 0.65 and 0.75 for slow and moderate angular velocities, those of the hemiplegic patients and the spring respectively ranged between excellent values of 0.93–1 and 0.91–1. The Pearson's product-moment correlation coefficients of the 3 cases for the 2 slow and moderate angular velocities ranged between 0.80 and 1. We could verify that the device can be used in our future researches and it can (1) reliably rotate a moving arm horizontally with angular velocities between 3 and 350°/s constantly in a range of motion between −60 and 60° and (2) simultaneously capture the data of angular displacement, torque, and two electromyogram activities. For the standardization of our future studies with the device, we could verify the stability of the last two repeated passive wrist movements in case of patients. The results of the study with the able-bodied subjects are also important as a reference for our studies with the hemiplegic.
AB - The consistency of torque measurements during repetitive moving arm movements and also during passive wrist movements at two angular velocities of slow (∼6°/s) and moderate (∼120°/s) was investigated. The designed and developed device was applied to 3 cases, to a spring, to 8 able-bodied subjects and to 2 hemiplegic patients. While the mean of the intra-class correlation coefficient of subjects were 0.65 and 0.75 for slow and moderate angular velocities, those of the hemiplegic patients and the spring respectively ranged between excellent values of 0.93–1 and 0.91–1. The Pearson's product-moment correlation coefficients of the 3 cases for the 2 slow and moderate angular velocities ranged between 0.80 and 1. We could verify that the device can be used in our future researches and it can (1) reliably rotate a moving arm horizontally with angular velocities between 3 and 350°/s constantly in a range of motion between −60 and 60° and (2) simultaneously capture the data of angular displacement, torque, and two electromyogram activities. For the standardization of our future studies with the device, we could verify the stability of the last two repeated passive wrist movements in case of patients. The results of the study with the able-bodied subjects are also important as a reference for our studies with the hemiplegic.
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U2 - 10.1016/j.bbe.2016.09.001
DO - 10.1016/j.bbe.2016.09.001
M3 - Article
AN - SCOPUS:85012298979
SN - 0208-5216
VL - 37
SP - 114
EP - 123
JO - Biocybernetics and Biomedical Engineering
JF - Biocybernetics and Biomedical Engineering
IS - 1
ER -