摘要
目的通过静态平衡仪记录身体直立静止以及倾斜时足底重心的移动，测量绝经后女性的静态平衡指标以及稳定极限范围（LOS），比较绝经后正常骨量女性、绝经后骨量减少女性、绝经后骨质疏松女性的静态平衡功能指标以及稳定极限范围有无差异性。方法50～60岁的绝经后正常骨量女性20例、绝经后骨量减少女性20例、绝经后骨质疏松症女性20例，使用压力测力板分别测定3组受试者睁、闭眼直立时的静态平衡指标（前后平均摆幅、左右平均摆幅、平均摆动速度、摆动路径长度、摆动有效面积）及前后左右4个方向LOS，使用SPSS17．0进行统计学分析。结果在睁眼以及闭眼状态下，3组受试者静态平衡各项指标（前后平均摆幅、左右平均摆幅、平均摆动速度、摆动路径长度和摆动有效面积）组间差异均无统计学意义（P〉0．05）。正常骨量组闭眼测试时的平均摆动速度和摆动路径长度分别为（0．916±O．666）cm／s和（52．109±16．950）cm均显著大于组内睁眼时的（0．885±0．585）cm／s和（38．768±10．095）cm，差异有统计学意义（P〈0．05）。3组受试者前、后、左、右4个方向的LOS值组间比较，差异无统计学意义（P〉0．05），且3组的前、后方LOS值均低于组内左、右方LOS值，差异具有统计学意义（P〈0．05）。骨量减少组和骨量正常组前方LOS值高于组内后方的LOS值，差异具有统计学意义（P〈0．05）。结论（1）50～60岁绝经后女性骨密度与静态平衡指标无相关性；对60岁以下绝经后骨量改变女性而言，视觉对静态平衡指标的代偿不明显。（2）骨密度与稳定极限范围之间亦无相关性；绝经后女性左右方向的主动姿势控制能力优于前后方向，50～60岁骨质疏松女性前方姿势控制能力下降。
Objective To characterize the static balance and limits of stability （LOS） of postmenopausal women and evaluate the relationship between bone mineral density （BMD） and balance. Methods Sixty women more than 12 months past menopause and aged 50 to 60 years were included in the study. Group 1 （n = 20） consisted of women with normal BMD, group 2 （n = 20） women with osteopenia, and group 3 （n = 20） women with osteoporosis. The static balance of all the participants was evaluated in upright postural situations for 60 s with the eyes open and with the eyes closed. Their LOS was quantified using a force platform. Results There was no significant difference in static balance parameters or LOS among the 3 groups. The static balance parameters were not significantly different in either the eyes-open or eyes-closed situation in the osteoporosis and osteopenia groups. The medial and lateral LOS were greater than the anterior and posterior limits in all 3 groups. The anterior LOS was greater than the posterior limits among the women with osteopenia and normal density. Conclusion In postmenopausal women aged 50 to 60 years, BMD did not show any significant association with static balance or LOS. Postmenopausal women had better postural control in the mediolateral than in the anteroposterior direction. In postmenopausal women with osteoporosis, postural control in the anterior direction deteriorates from age 50 to 60.
出处
《中华物理医学与康复杂志》
CAS
CSCD
北大核心
2013年第4期307-310,共4页
Chinese Journal of Physical Medicine and Rehabilitation
关键词
绝经后女性
骨密度
静态平衡
稳定极限范围
Menopause
Bone mineral density
Static balance
Limits of stability
