Inter-individual difference in the effect of mirror reflection-induced visual feedback on phantom limb awareness in forearm amputees.
Inter-individual difference in the effect of mirror reflection-induced visual feedback on phantom limb awareness in forearm amputees.
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DOI：
10.1371/journal.pone.0069324
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Yoshikawa M
中科院分区：
文献类型：
--
作者：
Kawashima N;Mita T;Yoshikawa M
通过观察单侧前臂截肢者的镜像反射诱导视觉反馈（MVF），探讨幻肢知觉是否能被改变。10名单侧前臂截肢者被要求在有或没有MVF的情况下进行双侧（完整和幻肢）同步手腕运动。腕关节运动时，用双极电极记录指长伸肌（EDL）和桡侧腕屈肌（FCR）的肌电图活动。腕关节活动度（ROM）也通过附着于完整侧腕关节的测角仪记录。受试者被要求用视觉模拟量表（VAS：从0（难）到10（容易））回答幻肢运动的实现程度。应用MVF可显著提高VAS和ROM，且VAS和ROM的增强程度呈正相关（r = 0.72, p<0.05）。尽管货代EMG活动也显示MVF显著增强,这不是与血管的变化和罗。有趣的是,当我们发现EDL EMG之间负相关活动和手腕ROM, MVF通常影响增加EDL EMG和罗。尽管有较大程度的变化的影响在幻肢MVF意识,MVF有潜力提高幻肢意识,以防那些幻肢运动有困难。目前的结果表明，通过适当的治疗策略，如镜像治疗，可以重新激活对缺失肢体的运动命令。
To test whether the phantom limb awareness could be altered by observing mirror reflection-induced visual feedback (MVF) in unilateral forearm amputees. Ten unilateral forearm amputees were asked to perform bilateral (intact and phantom) synchronous wrist motions with and without MVF. During wrist motion, electromyographic activities in the extensor digitorum longus (EDL) and flexor carpi radialis muscles (FCR) were recorded with bipolar electrodes. Degree of wrist range of motion (ROM) was also recorded by electrogoniometry attached to the wrist joint of intact side. Subjects were asked to answer the degree of attainment of phantom limb motion using a visual analog scale (VAS: ranging from 0 (hard) to 10 (easy)). VAS and ROM were significantly increased by utilizing MVF, and the extent of an enhancement of the VAS and wrist ROM was positively correlated (r = 0.72, p<0.05). Although FCR EMG activity also showed significant enhancement by MVF, this was not correlated with the changes of VAS and ROM. Interestingly, while we found negative correlation between EDL EMG activity and wrist ROM, MVF generally affected to be increasing both EDL EMG and ROM. Although there was larger extent of variability in the effect of MVF on phantom limb awareness, MVF has a potential to enhance phantom limb awareness, in case those who has a difficulty for the phantom limb motion. The present result suggests that the motor command to the missing limb can be re-activated by an appropriate therapeutic strategy such as mirror therapy.
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DOI：
10.1097/phm.0b013e318191105b
发表时间：
2009-01-01
影响因子：
3
作者：
Darnall, Beth D.
通讯作者：
Darnall, Beth D.
影响因子：
14.5
作者：
Mercier, Catherine;Reilly, Karen T.;Sirigu, Angela
通讯作者：
Sirigu, Angela
影响因子：
3
作者：
MELZACK, R
通讯作者：
MELZACK, R
影响因子：
2.2
作者：
MacLachlan, M;McDonald, D;Waloch, J
通讯作者：
Waloch, J
影响因子：
14.5
作者：
Fink, GR;Marshall, JC;Dolan, RJ
通讯作者：
Dolan, RJ