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Methods of joint stiffness measurement using a manually actuated dynamometer

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG42__%2F19%3A00555729" target="_blank" >RIV/60162694:G42__/19:00555729 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/68407700:21460/20:00339543

  • Výsledek na webu

    <a href="http://www.springer.com/series/11156" target="_blank" >http://www.springer.com/series/11156</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/978-3-030-29993-4_16" target="_blank" >10.1007/978-3-030-29993-4_16</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Methods of joint stiffness measurement using a manually actuated dynamometer

  • Popis výsledku v původním jazyce

    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.

  • Název v anglickém jazyce

    Methods of joint stiffness measurement using a manually actuated dynamometer

  • Popis výsledku anglicky

    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.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20205 - Automation and control systems

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2019

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    Advances in Intelligent Systems and Computing

  • ISBN

    978-3-030-299927

  • ISSN

    2194-5357

  • e-ISSN

    2194-5365

  • Počet stran výsledku

    8

  • Strana od-do

    125-132

  • Název nakladatele

    Springer Verlag

  • Místo vydání

    Varšava

  • Místo konání akce

    Warsaw, the Republic of Poland

  • Datum konání akce

    16. 9. 2019

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku