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首页> 外文期刊>American Journal of Sports Science and Medicine >Age-related Changes in Body Sway When Standing with Eyes Closed or Open and on Stable and Unstable Surfaces
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Age-related Changes in Body Sway When Standing with Eyes Closed or Open and on Stable and Unstable Surfaces

机译：闭眼或睁开并在稳定和不稳定的表面上站立时与年龄相关的身体摇摆变化

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This study examined how the amount of body sway various by age when people are standing on either a stable or an unstable surface with eyes either open or closed. The participants were 83 healthy women ranging in age from their teens to their eighties (with 9 to 12 women in each of the eight 10-year cohorts). Body sway was measured for 60 s while the participants were standing on a force plate with foam rubber (stable posture) or without form rubber (unstable posture). Path length (in cm), envelopment area (in cm2), and the ratio between these two measures were selected as evaluation parameters. In a three-way analysis of visual, posture, and age factors, path length, and envelopment area showed a significant interaction. Path length was shorter with the rubber than without it for all age levels with the eyes open or closed. An age-level difference was found only when the eyes were open. The envelopment area was smaller with than without the rubber with the eyes open for all age levels except women in their thirties and for all age groups with the eyes closed. Again, a significant age-level difference was found only with the eyes open. The ratio of length to envelopment area demonstrated a significant main effect for factors of both posture and age level. It was greater without than with the foam rubber with the eyes open for all age levels except women from their twenties to their forties, and for all age levels with the eyes closed. Coefficients in the linear regression equations, calculated based on the means for each age level, were significant in for three parameters. Values of path length and envelopment area were smaller without than with the rubber, but no significant differences were found between these values with the eyes open and closed. In conclusion, body sway in all age levels is greater on a less stable surface and increases with age, but the effect of vision on body sway can be disregarded.
机译：这项研究研究了当人们站在稳定或不稳定的表面上（睁开或闭着眼睛）时，随年龄变化的身体摆幅如何。参与者为83名健康女性，年龄从十几岁到八十岁不等（八个10年队列中的每一个中有9至12名妇女）。当参与者站在带有泡沫橡胶（稳定姿势）或没有泡沫橡胶（不稳定姿势）的测力板上时，测量了60 s的身体摇摆。选择路径长度（以厘米为单位），包络面积（以cm2为单位）以及这两个度量之间的比率作为评估参数。在视觉，姿势和年龄因素的三向分析中，路径长度和包围区域显示出显着的相互作用。在所有年龄段，睁开或闭上眼睛，使用橡胶的路径长度都比不使用橡胶的路径长度短。仅在睁开眼睛时才发现年龄差异。对于所有年龄段的人来说，信封的面积要比没有橡胶的情况要小，而三十岁以下的女性以及所有年龄段的妇女都必须闭眼。同样，仅在睁开眼睛时才发现明显的年龄差异。长度与包围面积之比对姿势和年龄水平因素均显示出显着的主要作用。对于所有年龄段的女性（从20岁到40岁的女性除外），以及在所有年龄段的闭眼情况下，睁眼都不会对泡沫橡胶产生更大的影响。基于每个年龄水平的平均值计算的线性回归方程中的系数在三个参数中均很重要。没有橡胶的情况下，光程长度和包络面积的值较小，但睁眼和闭眼时这些值之间没有显着差异。总而言之，在各个年龄段中，人体摇摆都在不稳定的表面上更大，并且随着年龄的增长而增加，但是视力对人体摇摆的影响可以忽略。

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