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Association Between Isokinetic Knee Strength Characteristics and Single-Leg Hop Performance In Healthy Young
Konstantinos Vassis1, Asimakis Kanellopoulos2, Savvas Spanos1,2
1Human Performance and Rehabilitation Laboratory, University of Thessaly, Lamia, Greece.
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.
