A Prospective Study of Postural Balance and Risk of Falling in An Ambulatory and Independent Elderly Population

作者: B. E. Maki , P. J. Holliday , A. K. Topper

DOI: 10.1093/GERONJ/49.2.M72

关键词:

摘要: BACKGROUND: An ability to predict risk of future falling is needed in order target high-risk individuals for preventive intervention. The purpose this study was compare the different measures postural balance prospectively an ambulatory and independent elderly population. METHODS: Balance tests were performed on 100 volunteers (aged 62-96), then monitored over a one-year period. testing comprised measurements of: (a) spontaneous sway, (b) induced anterior-posterior (c) medial-lateral (d) anticipatory adjustments preceding volitional arm movements, (e) timed one-leg stance, (f) performance clinical assessment scale. Small pseudorandom platform motions used perturb induced-sway tests. Using force plates, spontaneous- responses quantified terms amplitude, speed, mean frequency center-of-pressure displacement; input-output models also parameterize performance. RESULTS: Although number showed evidence significant differences between fallers nonfallers, most pronounced related control lateral stability. Lateral spontaneous-sway amplitude (blindfolded conditions) found be single best predictor risk, particularly large group falls that precipitated by biomechanical perturbation. This measure able with moderate accuracy, even those no recent history falling. CONCLUSIONS: results suggest stability may important area fall-preventative simple safe force-plate sway suggests possible application as preliminary screening tool Language: en

参考文章(0)