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. 2023 Mar;22(1):27-34.
doi: 10.1016/j.jcm.2022.05.003. Epub 2022 Jul 23.

Association Between Isokinetic Knee Strength Characteristics and Single-Leg Hop Performance In Healthy Young Participants

Konstantinos Vassis  1 , Asimakis Kanellopoulos  2 , Savvas Spanos  1   2 , Dimitra Kakolyri  2 , Aggeliki Loukopoulou  2 , Vasiliki Papanikolakou  2 , Dimitrios Aivaliotis  2 , Ioannis Poulis  1
Affiliations

Association Between Isokinetic Knee Strength Characteristics and Single-Leg Hop Performance In Healthy Young Participants

Konstantinos Vassis et al. J Chiropr Med. 2023 Mar.

Abstract

Objective: The purpose of this study was to determine the extent to which the mean peak moment (MPM) of knee flexors and extensors could predict performance in a group of healthy individuals.

Methods: Eighty-four healthy individuals-32 men and 52 women (mean age, 22.1 ± 3 years; range, 18-35 years)-participated in this study. Isokinetic unilateral concentric knee flexor and extensor MPM was assessed isokinetically at angular velocities of 60°/s and 180°/s. Functional performance was assessed using the single hop of distance (SHD).

Results: Positive moderate to good statistically significant correlations (r = .636 to r = .673) were found between knee flexor and extensor MPM at 60°/s and 180°/s for the SHD test. Knee flexor and extensor MPMs are strong predictors for the SHD test at 60°/s and 180°/s (R2 = .40 to R2 = .45).

Conclusion: Knee flexor and extensor strength was substantially correlated with SHD.

Keywords: Knee Joint; Muscle Strength; Physical Functional Performance.

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Figures

Fig 1
Fig 1
Extensors’ and flexors’ MPM at 60°/s and 180°/s predicting single hop for distance test. MPM, mean peak moment.
See this image and copyright information in PMC

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