Abstract Summary
We determined the effects of loss of balance direction and postural perturbation on the perturbation threshold line for lean releases, lean releases with surface translations and surface translations in younger adults, not only for forward but also for the first time for sideways and backward losses of balance. The angular positions and velocities at the end of reaction time, for the maximum lean angle or translation velocity trials, formed perturbation threshold lines, which moved toward the origin if the loss of balance changed from forward to sideways or forward to backward. These perturbation threshold lines suggest that the threshold of balance recovery for one postural perturbation could predict the risk of falls in the same loss of balance direction, regardless of the postural perturbation.
Sign in to ORCID