Peterka R J, Black F O
Good Samaritan Hospital and Medical Center, R. S. Dow Neurological Sciences Institute, Portland, OR 97210.
J Vestib Res. 1990;1(1):73-85.
Postural control was measured in 214 human subjects ranging in age from 7 to 81 y. Sensory organization tests measured the magnitude of anterior-posterior body sway during six 21 s trials in which visual and somatosensory orientation cues were normal, altered (by rotating the visual surround and support surface in proportion to the subject's sway), or vision eliminated (eyes closed). No age-related increase in postural sway was found for subjects standing on a fixed support surface with eyes open or closed. However, age- related increases in sway were found for conditions involving altered visual or somatosensory cues. Subjects older than about 55 y showed the largest sway increases. Subjects younger than about 15 y were also sensitive to alteration of sensory cues. On average, the older subjects were more affected by altered visual cues, whereas younger subjects had more difficulty with altered somatosensory cues.
对214名年龄在7至81岁之间的人类受试者进行了姿势控制测量。感觉组织测试在六项21秒的试验中测量了身体前后摆动的幅度，在这些试验中，视觉和体感定向线索正常、改变（通过根据受试者的摆动比例旋转视觉环境和支撑表面）或视觉消除（闭眼）。对于睁眼或闭眼站在固定支撑面上的受试者，未发现姿势摆动随年龄增加。然而，在涉及视觉或体感线索改变的情况下，发现摆动随年龄增加。年龄超过约55岁的受试者摆动增加最大。年龄小于约15岁的受试者对感觉线索的改变也很敏感。平均而言，老年受试者受视觉线索改变的影响更大，而年轻受试者在体感线索改变时更困难。
