The effects of ankle positional strength training on strength and passive joint position sense
Objective. To compare positional strength training and traditional strength training techniques on the ankle joint, assessing changes in muscular strength and passive joint position sense (PJPS). Subjects . Seventeen healthy, physically active college students participated in the study. Subjects were randomly assigned to one of two groups, positional strength training (5 females, 4 males) and traditional strength training (5 females, 3 males). Measurements. Pre-test and post-test isokinetic strength and PJPS measures were acquired using an isokinetic dynamometer. Plantar flexion/dorsiflexion and inversion/eversion strength were measured at 30°/s and 180°/s. Plantar flexion PJPS was assessed at three target angles 20°, 30°, and 40°. Inversion PJPS was assessed at three target angles 5°, 10°, and 20°. Results. No significant interaction was found between strength training group and time for isokinetic strength. A significant main effect for plantar flexion, inversion, and eversion strength was revealed for all subjects regardless of training group. No significant interaction between strength training group and time was discovered for PJPS. Conclusions. Positional strength training did not result in greater improvement in ankle strength and passive joint position sense in comparison to traditional strength training. The positional and traditional training groups exhibited comparable strength gains and passive joint position sense measures.