Reliability of the Balance Quality Tester (BQT) for balance quality measurement

Mohamad Rahhal (1) , Aly Chkeir (1) , Mohamad Nassereddine (2) , Mirna Atieh (2) , Racha Soubra (1)

1 LM2S - Laboratoire Modélisation et Sûreté des Systèmes
2 LU / ULB - الجامعة اللبنانية [بيروت] = Lebanese University [Beirut] = Université libanaise [Beyrouth]

Balance quality measurement is a key element in the evaluation of numerous conditions, including frailty. Four parameters were extracted from the balance quality assessment for older subjects: Rising Rate (RR), Duration of the stabilization segment (ZD), Stabilogram Area (SA) and Average Velocity of the Trajectory (TV). These are then scored and weighted, thus creating an overall indicator of balance quality. The reliability, the absolute reliability and the minimum difference of the four parameters were evaluated using the intra-class correlation coefficient (ICC), the standard error measurement (SEM) and the Minimal Detectable Change (MDC), respectively. Reproducibility was very high, with ICC values of 0.83, 0.85, 0.88 and 0.95 for RR, ZD, SA and TV, respectively. These results revealed that the parameters are a reliable measure for evaluating balance quality measurement.

Domaines: Performance et fiabilité [cs.PF]; Ingénierie biomédicale

Mohamad Rahhal, Aly Chkeir, Mohamad Nassereddine, Mirna Atieh, Racha Soubra. Reliability of the Balance Quality Tester (BQT) for balance quality measurement. 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Jul 2019, Berlin, Germany. pp.3738-3741, ⟨10.1109/EMBC.2019.8856593⟩. ⟨hal-02291426⟩