The reliability of data produced by isokinetic dynamometry (IKD) of knee extension and flexion movement

Malik, ZA, Vanrenterghem, J and Burniston, JG ORCID: 0000-0001-7303-9318 (2018) The reliability of data produced by isokinetic dynamometry (IKD) of knee extension and flexion movement. Journal of Fundamental and Applied Sciences, 9 (6S). pp. 1219-1226. ISSN 1112-9867

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Abstract

To investigate the feasibility of using isolated knee performance to measure the f-v profile of human muscle in vivo, we were using isokinetic dynamometry (IKD) technique that span the entire f-v profile of skeletal muscle. With institutional ethics approval, eleven healthy males (mean ± SD: age, 24.9 ± 3.1 years; body mass, 80.2 ± 10.1 kg; height, 176.2 ± 7.1 cm) completed this study. The participants were physically active and were familiarized with the techniques and protocol prior to completing 4 experimental sessions (1 introductory session and 3 repeated experiment sessions). The sessions was used a protocol of knee extensor function on IKD at isometric mode and angular velocities of 60˚.s-1, 120˚.s-1, 240˚.s-1 and 450˚.s-1. IKD data were not significantly different across the 3 repeated trials, demonstrating there was no evidence of systematic bias. The average coefficient of variation (CV) of IKD was 9.3 ± 3.0% ranging from 7.0 to 15.7%. Therefore the isolated knee performance to measure the f-v profile of human muscle in vivo using the IKD was feasible.

Item Type:	Article
Uncontrolled Keywords:	f-v profile; isokinetic dynamometry; skeletal muscle; 4201 Allied Health and Rehabilitation Science; 42 Health Sciences; 4207 Sports Science and Exercise; Musculoskeletal
Subjects:	R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions:	Sport and Exercise Sciences
Publisher:	African Journals Online (AJOL)
Date of acceptance:	1 December 2017
Date of first compliant Open Access:	2 September 2025
Date Deposited:	02 Sep 2025 10:42
Last Modified:	02 Sep 2025 10:45
DOI or ID number:	10.4314/jfas.v9i6s.90
URI:	https://researchonline.ljmu.ac.uk/id/eprint/27072

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