PDF(Pubmed)
Abstract：
UNASSIGNED: Both repetitive peripheral magnetic stimulation (rPMS) and transcutaneous electrical current stimulation (TES) could elicit the limb movements; it is still unclear how subjective sensation is changed according to the amount of limb movements. We investigated the pain and discomfort induced by newly developed rPMS and TES of peripheral nerves in the dorsal forearm.
UNASSIGNED: The subjects were 12 healthy adults. The stimulus site was the right dorsal forearm; thus, when stimulated, wrist dorsiflexion was induced. The rPMS was delivered by the new stimulator, Pathleader at 10 stimulus intensity levels, and TES intensity was in 1-mA increments. The duration of each stimulation was 2 s. The analysis parameters were subjective pain and discomfort, measured by a numerical rating scale. The rating scale at corresponding levels of integrated range of movement (iROM) induced by rPMS or TES was compared. The subjective values were analyzed by two-way repeated measures ANOVA with the stimulus conditions (rPMS, TES) and the seven levels of iROM (20-140 ºs).
UNASSIGNED: In the rPMS experiments, stimuli were administered to all subjects at all stimulus intensities. In the TES experiments, none of the subjects dropped out between 1 and 16 mA, but there were dropouts at each of the intensities as follows: 1 subject at 17 mA, 20 mA, 22 mA, 23 mA, 27 mA, 29 mA and 2 subjects at 21 mA, 24 mA, 26 mA. The main effects of the stimulus conditions and iROM were significant for pain and discomfort. Post hoc analysis demonstrated that pain and discomfort in rPMS were significantly lower compared to TES when the iROM was above 60 ºs and 80 ºs, respectively.
UNASSIGNED: New rPMS stimulator, Pathleader, caused less pain and discomfort than TES, but this was only evident when comparatively large joint movements occurred.
UNASSIGNED: The subjects were 12 healthy adults. The stimulus site was the right dorsal forearm; thus, when stimulated, wrist dorsiflexion was induced. The rPMS was delivered by the new stimulator, Pathleader at 10 stimulus intensity levels, and TES intensity was in 1-mA increments. The duration of each stimulation was 2 s. The analysis parameters were subjective pain and discomfort, measured by a numerical rating scale. The rating scale at corresponding levels of integrated range of movement (iROM) induced by rPMS or TES was compared. The subjective values were analyzed by two-way repeated measures ANOVA with the stimulus conditions (rPMS, TES) and the seven levels of iROM (20-140 ºs).
UNASSIGNED: In the rPMS experiments, stimuli were administered to all subjects at all stimulus intensities. In the TES experiments, none of the subjects dropped out between 1 and 16 mA, but there were dropouts at each of the intensities as follows: 1 subject at 17 mA, 20 mA, 22 mA, 23 mA, 27 mA, 29 mA and 2 subjects at 21 mA, 24 mA, 26 mA. The main effects of the stimulus conditions and iROM were significant for pain and discomfort. Post hoc analysis demonstrated that pain and discomfort in rPMS were significantly lower compared to TES when the iROM was above 60 ºs and 80 ºs, respectively.
UNASSIGNED: New rPMS stimulator, Pathleader, caused less pain and discomfort than TES, but this was only evident when comparatively large joint movements occurred.
摘要：
■重复外周磁刺激（rPMS）和经皮电流刺激（TES）都可以引起肢体运动；目前尚不清楚主观感觉如何根据肢体运动量而改变。我们调查了前臂背侧周围神经新开发的rPMS和TES引起的疼痛和不适。
■受试者为12名健康成年人。刺激部位是右前臂背侧；因此，当受到刺激时，诱发腕关节背屈。rPMS是由新的刺激器提供的，在10个刺激强度水平下，TES强度为1-mA增量。每次刺激的持续时间为2s。分析参数为主观疼痛和不适，用数字评级量表衡量。比较了rPMS或TES诱导的综合运动范围（iROM）相应水平的评定量表。主观值通过双向重复测量方差分析与刺激条件(rPMS，TES）和iROM的七个级别（20-140ºs）。
■在rPMS实验中，在所有刺激强度下对所有受试者给予刺激。在TES实验中,没有一个受试者在1到16毫安之间退出，但在每个强度下都有辍学，如下:1名受试者在17毫安时，20mA,22mA,23mA,27mA,29mA和2个受试者在21mA，24mA,26mA。刺激条件和iROM的主要影响对于疼痛和不适是显著的。事后分析表明，当iROM高于60ºs和80ºs时，rPMS的疼痛和不适明显低于TES，分别。
■新型rPMS刺激器，领跑者,引起的疼痛和不适比TES少，但这只有在发生相对较大的关节运动时才明显。
■受试者为12名健康成年人。刺激部位是右前臂背侧；因此，当受到刺激时，诱发腕关节背屈。rPMS是由新的刺激器提供的，在10个刺激强度水平下，TES强度为1-mA增量。每次刺激的持续时间为2s。分析参数为主观疼痛和不适，用数字评级量表衡量。比较了rPMS或TES诱导的综合运动范围（iROM）相应水平的评定量表。主观值通过双向重复测量方差分析与刺激条件(rPMS，TES）和iROM的七个级别（20-140ºs）。
■在rPMS实验中，在所有刺激强度下对所有受试者给予刺激。在TES实验中,没有一个受试者在1到16毫安之间退出，但在每个强度下都有辍学，如下:1名受试者在17毫安时，20mA,22mA,23mA,27mA,29mA和2个受试者在21mA，24mA,26mA。刺激条件和iROM的主要影响对于疼痛和不适是显著的。事后分析表明，当iROM高于60ºs和80ºs时，rPMS的疼痛和不适明显低于TES，分别。
■新型rPMS刺激器，领跑者,引起的疼痛和不适比TES少，但这只有在发生相对较大的关节运动时才明显。
