腰痛对老年女性动静态平衡功能的影响

Effects of low back pain on dynamic and static balance performance in older women

目的:探讨慢性腰痛对老年女性动静态平衡功能的影响。方法:选取20例老年女性腰痛受试者与20例健康老年女性对照,使用PK 254压力台评估2组受试者在双腿站立睁眼、双腿站立闭眼、单腿站立睁眼时的静态平衡,利用起立步行试验、四格移步试验、10m步行试验评估两组受试者的动态平衡。结果:与健康对照组相比,老年女性腰痛患者在单腿站立条件下静态平衡控制更差(前后速度P=0.017;左右速度P<0.001;椭圆面积P=0.019;椭圆轨迹P=0.005),起立步行测试及四格移步测试花费的时间更长(P<0.001),而在双腿站立、10m步行测试中两组受试者的差别无显著性意义(P>0.05)。结论:当姿势任务难度增加时,老年女性腰痛患者的平衡控制能力下降,同时单腿站立是评估平衡控制的一项较为敏感的指标。

Objective:To investigate the effect of low back pain on the dynamic and static balance performance in elderly women.Method:Twenty older women with low back pain and 20 healthy older women were recruited. By PK254,the static balance was evaluated at eyes open with two leg support and eyes closed with one leg support. The dynamic balance was evaluated with timed up-and-go(TUG), 10-meter walking test(10 M-WT), four-square step test(FSST) test.Result:Compared with healthy control group,older women with low back pain had worse static balance control under one-leg stance condition in velocity of pressure center sway in the anteroposterior(P=0.017) and mediolateral(P<0.001);sway area(P=0.019);sway length(P=0.005). The TUG and FSST were took more time in LBP than healthy group(P<0.001),but there was no significant difference between the two groups in 10 mwalking(P>0.05).Conclusion:Older people with LBP had poor balance performance when the postural task was more difficulty,and one-leg stance with eye closed is a sensitive method to evaluate balance control.