The Postural Control Characteristics of Individuals with and without a History of Ankle Sprain during Single-leg Standing: Relationship between Center of Pressure and Acceleration of the Head and Foot Parameters

• Published in: Journal of Physical Therapy Science Vol. 26; no. 6; pp. 885 - 888
• Main Authors: Sakamoto, Masaaki, Sugaya, Tomoaki, Abe, Yota
• Format: Journal Article
• Language: English
• Published: Japan The Society of Physical Therapy Science 01.06.2014
• Subjects: Original; Postural control assessment; Postural strategy; Recurrent ankle sprain; Postural strategy; Postural control assessment; Recurrent ankle sprain
• ISSN: 0915-5287; 2187-5626; 2187-5626
• DOI: 10.1589/jpts.26.885

[Purpose] This study aimed to investigate the postural control characteristics of individuals with and without a history of ankle sprain during single-leg standing by examining the relationship between various parameters of center of pressure (COP) and head and foot acceleration. [Subjects] Twenty subjects with and 23 subjects without a history of ankle sprain (sprain and control groups, respectively) participated. [Methods] Mean and maximum COP velocity and maximum COP range in the anteroposterior and mediolateral components of movement were calculated using a gravicorder. The anteroposterior and mediolateral maximum accelerations of the head and foot, as well as the root mean square (RMS) of each acceleration parameter, were measured using accelerometers. [Results] In the mediolateral component, a significant positive correlation was found between maximum acceleration of the foot and all COP parameters in the sprain group. [Conclusion] Our findings suggest that mediolateral momentary motion of the foot in individuals with a history of ankle sprain has relevance to various parameters of COP.