Prediction of postural risk of fall initiation based on a two-variable description of body dynamics: position and velocity of center of mass.

摘要: This research addresses the question: what is risk of fall initiation at a certain human posture? There are postures from which no one able to keep their balance and will surely initiate (risk=1), others everyone may regain stability (risk=0). In other postures, only portion people can control stability. One interpret chance be initiated, based on fallers assign value given posture (postural risk). Human mapped point in 2-dimensional space: x-v plane, axes horizontal components position velocity center mass body. For every pair (x, v), outcome recovery problem defines whether person with strength level when released corresponding that point. Using distribution data, we estimated population who if starting posture. A fast calculation approach also introduced replace time-consuming method solving many times. Postural for situations expressed by v) pairs entire plane calculated shown color-map. Language: en