Using The Maximum COM-COP Angle To Estimate Balance Ability Of People In Different Age

ObjectiveIn this study we compare the maximum angle of COM and COP of different age groups, accurate quantified static balance of different ages, evaluate static balance differences.MethodsHealthy people without cardiovascular and cerebrovascular diseases(n=38) included 15 young people(age between 18~40 years old), 10 middle age people(age between 41~65 years old) and 12 old people(over 65 years old) participated in this study. Let those subjects to use two legs to stand with eyes opened and closed and use single leg to stand with eyes opened and closed in the same condition with force platform and Vicon Nexus 1.7.1.ResultsIn three states(nature standing, close eyes standing, using single legs stand whilst eyes closed), neither in sagittal plane nor in coronal plane, angles of different age groups showed no significant difference. Results only show significant difference between the young and the old(p<0.05), and the middle-aged and the old(p<0.05) when single leg standing whilst eyes opened.ConclusionsIn the case of single-leg standing, the angle of the older group was significantly bigger than the young and the middle-aged group, suggesting that people over 65 years old, stability deterioration is more significant.Use this method to more accurately quantify the static balance, assessing static equilibrium characteristics of different age groups, can sensitively detect the elderly population balance function decline, hoping to make a new index for the clinical assessment of static equilibrium.