Postural transition parameters measured by a miniature gyroscope were significantly correlated with falling risk in elderly subjects (p < 0.01).
Observational
Does the measurement of postural transitions using a miniature gyroscope correlate with fall risk in elderly subjects?
A miniature gyroscope system measuring postural transitions provides parameters that significantly correlate with clinical fall risk in the elderly, offering a potential tool for long-term ambulatory monitoring.
p-value: p=<0.01
A new method of evaluating the characteristics of postural transition (PT) and their correlation with falling risk in elderly people is described. The time of sit-to-stand and stand-to-sit transitions and their duration were measured using a miniature gyroscope attached to the chest and a portable recorder placed on the waist. Based on a simple model and the discrete wavelet transform, three parameters related to the PT were measured, namely, the average and standard deviation of transition duration and the occurrence of abnormal successive transitions (number of attempts to have a successful transition). The comparison between two groups of elderly subjects (with high and low fall-risk) showed that the computed parameters were significantly correlated with the falling risk as determined by the record of falls during the previous year, balance and gait disorders (Tinetti score), visual disorders, and cognitive and depressive disorders (p < 0.01). In this study, the wavelet transform has provided a powerful technique for enhancing the pattern of PT, which was mainly concentrated into the frequency range of 0.04-0.68 Hz. The system is especially adapted for long-term ambulatory monitoring of elderly people.
Najafi et al. (Thu,) conducted a observational in Fall risk. Postural transition parameters measured by a miniature gyroscope was evaluated on Correlation of computed postural transition parameters with falling risk (p=<0.01). Postural transition parameters measured by a miniature gyroscope were significantly correlated with falling risk in elderly subjects (p < 0.01).