Parameters of Center of Pressure Movement Showing Common Characteristics of Standing Balance.

[Purpose] The aim of this study was to reveal the interrelations between parameters of center of pressure (COP) movement, and to identify parameters showing the common features of standing balance. [Subjects] The subjects were 24 healthy adults. [Methods] We measured subjects' COP motion for 10 seconds in 4 static upright postures (opened-feet, closed-feet, Mann's posture, one-legged) selected from the Berg balance scale. [Results] Only 1 factor was identified by factor analysis in the area surrounded by the maximal amplitude rectangle (REC.AREA). For the other parameters of COP movement, 2 factors were identified. [Conclusion] REC.AREA expressed the common characteristics of standing balance, so it could be possible to evaluate standing balance by REC.AREA. [ABSTRACT FROM AUTHOR]