Hidalgo Benjamin, Gobert François, Bragard Dominique, Detrembleur Christine
Institute of Neuroscience, Faculty of Motor Sciences, University of Louvain, Brussels, Belgium.
J Back Musculoskelet Rehabil. 2013;26(4):381-7. doi: 10.3233/BMR-130396.
Various inputs of proprioception have been identified and shown to influence low back proprioception sense.
To investigate the effect of disrupting proprioception on lumbar spine repositioning error during forward bending.
Healthy-subjects (n=28) and patients with non-specific chronic low-back pain (n=10) aged between 20-50 years. Subjects performed 5 repetitions of a lumbar repositioning task targeting 30° of trunk-forward-bending from a seated-position with different proprioceptive disturbances administered to the low back. Video analysis of skin reflective markers measured lumbar spine range-of-motion. A control-task was performed without any proprioceptive disturbance, while the remaining 4 tasks were electro-stimulation, vibration, taping and sitting on an unstable surface.
The healthy group showed significantly altered repositioning error when compared with the control task (p=0.004): control-task vs. taping-task, vibration-task and unstable-sitting. In the NS-CLBP group, one motor-task showed significant difference in control-task vs. taping-task (p=0.004). Comparison between the NS-CLBP and matched-healthy groups revealed that the NS-CLBP subjects had larger repositioning-error (p=0.009) for control, taping and vibration tasks.
Proprioceptive disturbances had the most significant effect in increasing repositioning-error among healthy subjects. The between-groups analysis confirmed evidence consistent with the literature of greater repositioning-error in people with NS-CLBP than healthy subjects.
已识别出各种本体感觉输入，并证明其会影响腰部本体感觉。
研究破坏本体感觉对前屈过程中腰椎重新定位误差的影响。
年龄在20至50岁之间的健康受试者（n = 28）和非特异性慢性下腰痛患者（n = 10）。受试者从坐姿开始进行5次腰椎重新定位任务，目标是躯干前屈30°，同时对腰部施加不同的本体感觉干扰。通过对皮肤反射标记的视频分析来测量腰椎活动范围。进行一项无任何本体感觉干扰的对照任务，其余4项任务分别为电刺激、振动、贴扎和坐在不稳定表面上。
与对照任务相比，健康组的重新定位误差有显著改变（p = 0.004）：对照任务与贴扎任务、振动任务和坐在不稳定表面上的任务相比。在非特异性慢性下腰痛组中，一项运动任务在对照任务与贴扎任务之间显示出显著差异（p = 0.004）。非特异性慢性下腰痛组与匹配的健康组之间的比较显示，非特异性慢性下腰痛受试者在对照、贴扎和振动任务中的重新定位误差更大（p = 0.009）。
本体感觉干扰对增加健康受试者的重新定位误差影响最为显著。组间分析证实了与文献一致的证据，即非特异性慢性下腰痛患者的重新定位误差大于健康受试者。
