Influence of Isokinetic Strength Training of Unilateral Ankle on Ipsilateral One-legged Standing Balance of Adults

• Published in: Journal of Physical Therapy Science Vol. 25; no. 10; pp. 1313 - 1315
• Main Authors: Son, Sung Min, Kang, Kyung Woo, Lee, Na Kyung, Nam, Seok Hyun, Kwon, Jung Won, Kim, Kyoung
• Format: Journal Article
• Language: English; Japanese
• Published: Japan The Society of Physical Therapy Science 01.10.2013
• Subjects: Isokinetic exercise; Original; Postural balance; Strength training; Isokinetic exercise; Postural balance; Strength training
• ISSN: 0915-5287; 2187-5626
• DOI: 10.1589/jpts.25.1313

[Purpose] The purpose of the current study was to investigate the changes in one-legged standing balance of the ipsilateral lower limb following unilateral isokinetic strength training. [Subjects and Methods] Thirty healthy adult volunteers were randomly assigned to either a training group or a control group, so that each group included 15 subjects. Subjects in the training group performed unilateral ankle isokinetic exercises of the dominant leg using the Biodex 3 PRO System for a period of four weeks. Ipsilateral one-legged standing balance was evaluated before and after the intervention with three stability indexes of balance using the Biodex System: Anterior-Posterior Stability Index (APSI), Medial-Lateral Stability Index (MLSI), and Overall Stability Index (OSI). [Results] Comparison of pre- and post-test data revealed significant improvements in strength values (dorsiflexion, plantarflexion, eversion, and inversion) and stability indexes (APSI, MLSI, OSI). [Conclusion] These results suggest that ankle strengthening exercise can be considered as a form of exercise that may assist individuals with improvement of balance.