Intra- and intersubject reliability of abductor pollicis brevis muscle motor map characteristics with transcranial magnetic stimulation
Intra- and intersubject reliability of abductor pollicis brevis muscle motor map characteristics with transcranial magnetic stimulation
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DOI：
10.1016/j.apmr.2004.12.039
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发表时间：
2005-08-01
影响因子：
4.3
通讯作者：
Wolf, SL
中科院分区：
文献类型：
--
作者：
Corneal, SF;Butler, AJ;Wolf, SL
张建军，张建军，张建军，等。经颅磁刺激下外展拇短肌运动图谱的研究进展。中华医学康复杂志2005；86:1670-5。目的：探讨经颅磁刺激（TMS）下外展拇短肌（APB）运动图的一致性。设计：非随机方便样本。设置：TMS实验室。参与者：11名无任何已知神经障碍的参与者。干预措施：使用TMS对右手主导型受试者的左脑半球进行扫描，每组2次，间隔1至8周。主要结果测量：每次会话的测量包括静息运动阈值、活动部位位置和活动部位的平均运动响应幅度、归一化地图体积和两种电极阵列配置的重心（COG）。结果：常规电极放置的归一化图谱体积大于封闭电极放置的归一化图谱体积(4.23 cm（2) vs 3.44 cm(2)， P= 0.010）。静息运动阈值在近间隔电极组高于常规间隔电极组（48.36% vs 46.59%， P= 0.028）。对于归一化地图体积、静息运动阈值或每个地图最活跃部位的平均运动幅度，在会话之间和电极放置内没有发现统计学差异。电极放置之间的COG距离无统计学差异。结论：本研究揭示了近间隔和常规间隔表面电极放置对经颅磁刺激运动图体积和静息运动阈值的差异。APB肌肉的运动图在每个电极阵列的会话之间可靠地再现。(c) 2005年由美国康复医学大会和美国物理医学和康复学会颁发。
Corneal SF, Butler AJ, Wolf SL. Intra- and intersubject reliability of abductor pollicis brevis muscle motor map characteristics with transcranial magnetic stimulation. Arch Phys Med Rehabil 2005;86:1670-5.Objective: To determine consistency in motor maps of the abductor pollicis brevis (APB) muscle using transcranial magnetic stimulation (TMS) with conventional and close-spaced surface electrode recording placements.Design: Nonrandom convenience sample.Setting: TMS laboratory.Participants: Eleven participants without any known neurologic disorders.Interventions: The left hemisphere of right-hand-dominant subjects was mapped using TMS at each of 2 sessions, separated by I to 8 weeks.Main Outcome Measures: Measurements at each session included the resting motor threshold, active site locations and average motor response amplitude for active sites, normalized map volume, and center of gravity (COG) for both electrode array configurations.Results: The normalized map volume was larger for the conventional electrode placement than for the close electrode placement (.4.23 cm(2) vs 3.44 cm(2), P=.010). Resting motor threshold was higher for the close-spaced than for the conventional-spaced electrodes (48.36% vs 46.59%, P=.028). No statistical difference was found between sessions and within electrode placements for the normalized map volume, for resting motor threshold, or for the mean motor amplitude of the most active site for each map. No statistical difference was observed for the COG distance between electrode placements.Conclusions: This study revealed differences between close-spaced and conventional-spaced surface electrode placement for TMS motor map volumes and for resting motor thresholds. The motor maps for the APB muscle were reliably reproducible between sessions for each electrode array.(c) 2005 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation.