目的应用站立海绵垫的方法干扰人体直立时的本体觉,探讨后半规管良性阵发性位置性眩晕(be-nign paroxysmal positional vertigo of the posterior semicircular canal,BPPV-PSC)患者在本体觉受到干扰时的姿势平衡。方法39名确诊为BPPV-...目的应用站立海绵垫的方法干扰人体直立时的本体觉,探讨后半规管良性阵发性位置性眩晕(be-nign paroxysmal positional vertigo of the posterior semicircular canal,BPPV-PSC)患者在本体觉受到干扰时的姿势平衡。方法39名确诊为BPPV-PSC患者进行以下四种感觉条件下的姿势稳定性定量测量:T1:睁眼站立于坚硬平板;T2:闭眼站立于坚硬平板;T3:睁眼站立于海绵垫;T4:闭眼站立于海绵垫,所有测试均于姿势描记仪上完成。采用身体直立时足底压力中心的平均晃动速度(sway velocity,SV)为研究参数,并与39名正常人姿势稳定性作为对照。结果①应用海绵垫干扰本体觉后,BPPV-PSC组睁眼(t=11.905,P<0.001)及闭眼(t=11.457,P<0.001)时的SV均增加,对照组睁眼(t=9.701,P<0.001)及闭眼(t=17.604,P<0.001)时的SV亦均增加;②相同感觉条件下两组SV比较,除T1外(t=1.810,P=0.078),T2～T4条件下BPPV-PSC组的SV均高于对照组,差异有显著统计学意义(t=3.279～5.177,P=0.002～0.000)。结论BPPV-PSC患者的姿势稳定性在视觉和/或本体觉受到干扰时低于正常人,其机制可能与患者半规管流体动力学变化导致的前庭终器传入感觉改变有关。展开更多
BACKGROUND： Balance problems are common in people of all ages and can lead to falls, thus causing fractures with consequent disability. Qigong practice has long been part of daily life in Chinese culture, and has goo...BACKGROUND： Balance problems are common in people of all ages and can lead to falls, thus causing fractures with consequent disability. Qigong practice has long been part of daily life in Chinese culture, and has good effects on physical health maintenance. OBJECTIVE： The present work describes the change in balance in young, healthy women after practising Qigong for eight weeks. DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS： The study took the form of a controlled, randomised longitudinal trial, and involved 30 women aged 18-25 years. The subjects had no prior experience of Qigong or Tai Chi and were unaware of the aims of the study. Subjects were randomly assigned to a Qigong intervention group or a control group. Those in the Qigong intervention group performed ＂exercises in 20 figures for health and long-life＂ （Wang Ziping） for 1 h twice per week, for 4 weeks. The control group undertook no exercise at all. MAIN OUTCOME MEASURES： The main outcome measure was the stabilometry values. These were obtained in a unipodal support test, using a plantar pressure platform with optical sensors. RESULTS： The Qigong subjects showed a significant improvement in their stabilometry results （40.1% pre-intervention and 56.4% post-intervention） （P〈0.045）, while no improvement was seen in the control group （51.2% pre-intervention and 53.5% post-intervention）. At the beginning of the intervention, the stabilometry values recorded for the Qigong intervention group were worse than those recorded for the control group （40.15% and 51.21% respectively; P=0.121）. However, a comparison of the post-intervention values between these groups showed that these differences have disappeared （P=0.653）. CONCLUSION： Qigong can improve balance in healthy, young women.展开更多
文摘目的应用站立海绵垫的方法干扰人体直立时的本体觉,探讨后半规管良性阵发性位置性眩晕(be-nign paroxysmal positional vertigo of the posterior semicircular canal,BPPV-PSC)患者在本体觉受到干扰时的姿势平衡。方法39名确诊为BPPV-PSC患者进行以下四种感觉条件下的姿势稳定性定量测量:T1:睁眼站立于坚硬平板;T2:闭眼站立于坚硬平板;T3:睁眼站立于海绵垫;T4:闭眼站立于海绵垫,所有测试均于姿势描记仪上完成。采用身体直立时足底压力中心的平均晃动速度(sway velocity,SV)为研究参数,并与39名正常人姿势稳定性作为对照。结果①应用海绵垫干扰本体觉后,BPPV-PSC组睁眼(t=11.905,P<0.001)及闭眼(t=11.457,P<0.001)时的SV均增加,对照组睁眼(t=9.701,P<0.001)及闭眼(t=17.604,P<0.001)时的SV亦均增加;②相同感觉条件下两组SV比较,除T1外(t=1.810,P=0.078),T2～T4条件下BPPV-PSC组的SV均高于对照组,差异有显著统计学意义(t=3.279～5.177,P=0.002～0.000)。结论BPPV-PSC患者的姿势稳定性在视觉和/或本体觉受到干扰时低于正常人,其机制可能与患者半规管流体动力学变化导致的前庭终器传入感觉改变有关。
文摘BACKGROUND： Balance problems are common in people of all ages and can lead to falls, thus causing fractures with consequent disability. Qigong practice has long been part of daily life in Chinese culture, and has good effects on physical health maintenance. OBJECTIVE： The present work describes the change in balance in young, healthy women after practising Qigong for eight weeks. DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS： The study took the form of a controlled, randomised longitudinal trial, and involved 30 women aged 18-25 years. The subjects had no prior experience of Qigong or Tai Chi and were unaware of the aims of the study. Subjects were randomly assigned to a Qigong intervention group or a control group. Those in the Qigong intervention group performed ＂exercises in 20 figures for health and long-life＂ （Wang Ziping） for 1 h twice per week, for 4 weeks. The control group undertook no exercise at all. MAIN OUTCOME MEASURES： The main outcome measure was the stabilometry values. These were obtained in a unipodal support test, using a plantar pressure platform with optical sensors. RESULTS： The Qigong subjects showed a significant improvement in their stabilometry results （40.1% pre-intervention and 56.4% post-intervention） （P〈0.045）, while no improvement was seen in the control group （51.2% pre-intervention and 53.5% post-intervention）. At the beginning of the intervention, the stabilometry values recorded for the Qigong intervention group were worse than those recorded for the control group （40.15% and 51.21% respectively; P=0.121）. However, a comparison of the post-intervention values between these groups showed that these differences have disappeared （P=0.653）. CONCLUSION： Qigong can improve balance in healthy, young women.
