Affiliations: [a] Athletic Training/ Sports Medicine Research
Laboratory, 105D Florida Gymnasium, University of Florida, Gainesville, FL
32611, USA. Tel.: +1 352 334 5000 x5362; E-mail: gkp@ufl.edu | [b] University of Delaware, Department of Health,
Nutrition & Exercise Sciences, Human Performance Laboratory, Fred Rust Ice
Arena, 541 South College Avenue, Newark, DE 19716, USA. Tel.: +1 302 831 6402;
Fax: +1 302 831 3693; E-mail: kaminski@udel.edu
Note: [] Corresponding author
Abstract: The purpose of this study was to examine varying degrees of knee
flexion on isokinetic eversion (E) to inversion (I) strength ratios. Twenty
healthy subjects volunteered for this study. Concentric (CON) peak torque (PT)
of both ankles (dominant, non-dominant) at three different angles of knee
flexion (15°, 30°, 45°) and two different velocities (30°/s,
120°/s) was assessed with ankle plantar flexion maintained at 10°. The
E_{CON}:I_{CON} ratios at 30°/s
ranged from 0.87 to 1.04 across all three angles, while those at 120°/s
ranged from 0.86 to 1.00 indicating no differences in ratios between
knee-flexion angles or ankles. However, there was a trend in lower ratios
evident in the dominant compared to non-dominant ankles. These results suggest
that subjects may be positioned with knee flexion angles ranging from 15°
to 45° without influencing the outcome of the ankle eversion and inversion
strength measurements.
