The Relationship between Dynamic Balance Measures and Center of Pressure Displacement Time in Older Adults during an Obstacle Crossing

Purpose: This study examined the relationship between the center of pressure (COP) displacement time duringthe stance phase and dynamic balance ability when older adults cross a 10 cm obstacle. Methods: Fifteen older adults were enrolled in this study (all ≥65 years of age). The F-scan was used to measure the COP displacement time when subjects cross a 10 cm obstacle, and the Dynamic gait index. Berg`s balance scale and the Four square step test were used to measure dynamic balance ability. Results: The Dynamic gait index, Berg`s balance scale and the Four square step test were correlated with each other. Dynamic balance ability was correlated with COP displacement time during the stance phase at an obstacle crossing in older adults. Conclusion: People with higher dynamic balance ability show a smaller COP displacement time during the stance phase at an obstacle crossing. Therefore, dynamic balance ability can be predicted by measuring the center of pressure displacement time.