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Test-Retest Reliability of Isokinetic Knee Strength Measurements in Type 2 Diabetes Mellitus Patients

Author

Listed:
  • José Carmelo Adsuar

    (Promoting a Healthy Society Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain)

  • Jose Parraca

    (Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, 7000 Évora, Portugal
    Comprehensive Health Research Centre (CHRC), 7000 Évora, Portugal)

  • Armando Raimundo

    (Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, 7000 Évora, Portugal
    Comprehensive Health Research Centre (CHRC), 7000 Évora, Portugal)

  • Miguel Angel Garcia-Gordillo

    (Departamento de Economía, Universidad Autónoma de Chile, Talca 3460000, Chile)

  • Patricia Polero

    (Laboratorio de Biomecánica y Análisis del Movimiento del Litoral, CENUR Litoral Norte, Universidad de la República, Paysandú 60000, Uruguay)

  • Pablo Tomas-Carus

    (Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, 7000 Évora, Portugal
    Comprehensive Health Research Centre (CHRC), 7000 Évora, Portugal)

Abstract

Background: Reliability studies are used to verify the evaluation accuracy of a given device. Strength is an important factor for the development of daily activities and its correct management is fundamental. The objective of this study was to examine the reliability of a concentric strength test in people with type 2 diabetes mellitus (T2DM). Methods: Twenty-seven individuals with T2DM performed three repetitions of extension-flexion in concentric-concentric action at 60°/s, for both legs, using an isokinetic dynamometer. For the reliability analysis, we performed an intra-session test retest. Results: The total sample and men sub-group intra-class correlation coefficient (ICC) values were excellent for peak torque and work. In the women sub-group, ICC values were excellent for extensors in both peak torque and work; however, concerning flexor, the ICC values were good for peak torque while, for work, they were good for the right leg and moderate for the left leg. Standard error of measurement (SEM) percentage oscillated from 3.85% to 6.80%, with the smallest real difference (SRD) percentage being from 10.66% to 18.86% for peak torque. Furthermore, the SEM (%) was around 5.5% and SRD (%) was around 15% for work. Conclusions: The isokinetic dynamometry had “good” to “excellent” relative reliability for peak torque (0.862–0.983) and work (0.744–0.982) of extension-flexion in concentric-concentric action at 60°/s. In addition, our study showed that, in general, an SRD < 20% could indicate a true change in strength regarding this protocol in T2DM.

Suggested Citation

  • José Carmelo Adsuar & Jose Parraca & Armando Raimundo & Miguel Angel Garcia-Gordillo & Patricia Polero & Pablo Tomas-Carus, 2021. "Test-Retest Reliability of Isokinetic Knee Strength Measurements in Type 2 Diabetes Mellitus Patients," Sustainability, MDPI, vol. 13(3), pages 1-11, January.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:3:p:1343-:d:488377
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    References listed on IDEAS

    as
    1. Laura Muñoz-Bermejo & Jorge Pérez-Gómez & Fernando Manzano & Daniel Collado-Mateo & Santos Villafaina & José C Adsuar, 2019. "Reliability of isokinetic knee strength measurements in children: A systematic review and meta-analysis," PLOS ONE, Public Library of Science, vol. 14(12), pages 1-15, December.
    2. Boshra Hatef & Ali Ghanjal & Gholam Meftahi & Ahmadreza Askary-Ashtiani, 2016. "Isokinetic and Electromyographic Properties of Muscular Endurance in Short and Long-Term Type 2 Diabetes," Global Journal of Health Science, Canadian Center of Science and Education, vol. 8(8), pages 210-210, August.
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