Detection of gait and postures using a miniaturised triaxial accelerometer-based system: accuracy in community-dwelling older adults.

interview, whereas for the others it was based on filling in a questionnaire. However, an earlier study found no differences between these two ways of responding [10]. We conclude that the Norwegian 16-item FES-I has good psychometric properties and that the seven-item version has very similar properties in fall-prone older persons. Data on sensitivity to change are needed in order to determine which version of the FES-I is best suited to measure change following interventions. Compared with previous studies, our results indicate that level of falls efficacy may depend on culture, and this aspect should be highlighted in further studies.