Repeatability of posturographic measures of the mctsib static balance tests a preliminary investigation

Computerized posturography systems are commonly used to evaluate postural equilibrium and balance, usually performing a static balance test in which the person being tested tries to minimize the sway of the body. Most variations of static test are part of the modified Clinical Test of Sensor Integration in Balance (mCTSIB) test protocol. Given its importance in clinical practice, a recurrent question is how repeatable are the posturographic measures obtained by these tests and what constitutes a significant change. To answer these questions an investigation was conducted using two models of the CAPStrade mark Computerized Posturography System. The repeatability of the two systems was assessed using fixed weights, and the repeatability of the posturographic measures was investigated by repeatedly testing one female and one male subject under controlled conditions. The most repeatable posturographic measure was found to be the Stability Score.