Methods of joint stiffness measurement using a manually actuated dynamometer

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F20%3A00339543" target="_blank" >RIV/68407700:21460/20:00339543 - isvavai.cz</a>

Alternative codes found

RIV/60162694:G42__/19:00555729

Result on the web

<a href="https://link.springer.com/chapter/10.1007/978-3-030-29993-4_16" target="_blank" >https://link.springer.com/chapter/10.1007/978-3-030-29993-4_16</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-29993-4_1" target="_blank" >10.1007/978-3-030-29993-4_1</a>

Result language

angličtina

Original language name

Methods of joint stiffness measurement using a manually actuated dynamometer

Original language description

The methods described provide for quantitative evaluation of skeletal muscles’ passive resistance, also known as muscle stiffness, muscle myotonia or spasticity. They are employed in the quantitative evaluation of muscle groups responsible for angular movements in the elbow joint. The methods, along with the manually actuated dynamometer, represent an alternative to current evaluation methods which are considered inaccurate and subjective. The function of the electronic dynamometer subsystem is to measure angle and torque in the elbow joint. Stiffness can be evaluated by a graph of the torque moment and joint angle in mutual dependence. Since the curve of dependence demonstrates a relation between the torque moment and joint angle is composed of three parts (small, mean, and high angles), three polynomial equations for three regression lines must be calculated. This means that for three regression lines, three values of joint stiffness are obtained. Angular velocity of the rotational movement in a joint is the result of movement affected by a manually controlled lever of dynamometer. No statistically significant difference in joint stiffness values was identified, when comparing values for individual joint stiffness across three different groups of angular velocities; however, when the same comparison was made for small, mean and high angles, a statistically significant difference was identified for all three angular velocities used. The experiments with healthy subjects confirmed, that the torsional moment is dependent on the elbow angle, not on the velocity of the movement. Finding a correlation between a passive moment of force and kinematic angular parameters allows for the study of a complex movement in a joint.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20601 - Medical engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Mechatronics 2019: Recent Advances Towards Industry 4.0

ISBN

978-3-030-29992-7

ISSN

2194-5357

e-ISSN

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Number of pages

8

Pages from-to

125-132

Publisher name

Springer International Publishing

Place of publication

Cham

Event location

Warsaw

Event date

Sep 16, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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