Application of Percentage Layouts of Power Spectrum in Balance Assessment of Stroke Patients

VernacularTitle:功率谱百分比构成在脑卒中患者平衡功能评定中的应用
Author: Mengming SHAO ; Pu ZHANG ; Huiyun SONG
Publication Type:Journal Article
Keywords: power spectrum, percentage, stroke, balance function
From: Chinese Journal of Rehabilitation Theory and Practice 2013;19(8):748-751
CountryChina
Language:Chinese
Abstract: Objective To study the general rule in the power spectrum percentage of balance when normal people standing and the differences of the power spectrum percentage between normal people and the stroke patients. Methods 30 normal people and 30 stroke patients was tested with Active Balancer EAB-100 (Sakai Iryo) open- and close-eye. The whole path length, circumference area and the percentages of power spectrum on the X, Y and Z axes were recorded. The correlation and the differences were analyzed. Results The percentages of power spectrum were not statistically correlated (P>0.05) with age, height, weight or gender. There was significant difference between two groups in the percentage of power spectrum (P<0.05). On the frequency spectrum, the ratio rised on the low and middle frequency part, especially within 0.2~2 Hz, but the ratio decreased on the high frequency part (2~10 Hz) (P<0.05). Conclusion The percentage of power spectrum can be an important reference in assessing the stroke patients' balancing functions.