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首页> 外文期刊>Gait & posture >Sports activities are reflected in the local stability and regularity of body sway: Older ice-skaters have better postural control than inactive elderly
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Sports activities are reflected in the local stability and regularity of body sway: Older ice-skaters have better postural control than inactive elderly

机译：体育活动反映在身体的局部稳定性和规律性中：年长的溜冰者比不运动的年长者具有更好的姿势控制

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With age postural control deteriorates and increases the risk for falls. Recent research has suggested that in contrast to persons with superior balance control (dancer's athletes), with pathology and aging, predictability and regularity of sway patterns increase and stability decreases implying a less adaptive form of postural control.The aim of the present study was to determine, whether patterns of body sway of elderly (N=13) who practice a sport which challenges postural control (ice speed-skating), are more similar to that of young subjects (N=10) than to that of inactive elderly (N=10). Trunk patterns were measured with a tri-axial accelerometer. Data were recorded during quiet upright stance with (1) eyes open, (2) limited vision, and (3) while performing a dual task. Anterior-posterior and medio-lateral acceleration time-series were analyzed. Differences in postural control were quantified in terms of the magnitude of the acceleration (root mean square), the smoothness (mean power frequency), the predictability (sample entropy) and the local stability (largest Lyapunov exponent). Postural control of ice-skating elderly differed from that of sedentary elderly. As anticipated, postural control of the ice-skating elderly was similar to that of young adults. For anterior-posterior accelerations, the skating elderly and the younger subjects had significant higher stability and lower regularity than the non-skating elderly in all tasks. These results imply that sport activities such as ice-skating are beneficial for elderly people. It might, at least partly, counteract the age related changes in postural control.
机译：随着年龄的增长，姿势控制恶化并增加跌倒的风险。最近的研究表明，与具有出色平衡控制能力的人（舞者运动员）相比，随着病理和衰老，摇摆模式的可预测性和规律性增加而稳定性下降，这意味着姿势控制的适应性较差。确定进行挑战姿势控制（冰速滑冰）运动的老年人（N = 13）的身体摇摆模式是否与年轻受试者（N = 10）比不运动的老年人（N = 10）。躯干模式用三轴加速度计测量。在安静，直立的姿势下记录数据，其中：（1）睁开眼睛，（2）视力受限，（3）执行双重任务时。分析了前后和加速时间序列。根据加速度的大小（均方根），平滑度（平均功率频率），可预测性（样本熵）和局部稳定性（最大Lyapunov指数）来量化姿势控制上的差异。滑冰老人的姿势控制与久坐老人的姿势控制不同。正如预期的那样，滑冰老人的姿势控制与年轻人相似。对于前后加速，在所有任务中，溜冰的老年人和年轻的受试者比非溜冰的老年人具有更高的稳定性和更低的规律性。这些结果表明，溜冰等体育活动对老年人有益。它可能至少部分地抵消了与年龄有关的姿势控制方面的变化。

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