High-versus low-frequency stimulation effects on fine motor control in chronic hemiplegia: a pilot study.
High-versus low-frequency stimulation effects on fine motor control in chronic hemiplegia: a pilot study.
复制标题
DOI：
10.1310/tsr2004-299
复制
发表时间：
2013-07
影响因子：
2.2
通讯作者：
Griffin L
中科院分区：
文献类型：
--
作者：
Doucet BM;Griffin L
神经肌肉电刺激（NMES）恢复中风后手功能的最佳参数是未知的。这项临床初步研究探讨了更高或更低的频率是否能更有效地改善慢性中风后人群的手部精细运动控制。一个月，每周4次的高频（40 Hz）或低频（20 Hz）的NMES程序的家庭治疗方案应用于16名慢性中风患者的偏瘫鱼际肌肉。参与者被先验地确定为具有低水平的功能（LF）或高水平的功能（HF）。在参与该方案之前和之后测量力量、灵活性和耐力的结果指标。LF受试者在高频率或低频率NMES方案下均未显示出显著变化。HF受试者在力量、灵活性和耐力方面表现出显著变化。在这一组中，更高频率的刺激产生了力量增益和增加运动激活;较低频率的刺激影响灵活性和耐力。结果表明，较高频率的刺激可能更有效地改善力量和运动激活特性，较低频率可能会影响协调和耐力的变化;结果还表明，具有较高功能恢复水平的人可能对NMES方案反应更有利，但需要对更大的患者群体进行进一步研究。
The optimal parameters of neuromuscular electrical stimulation (NMES) for recovery of hand function following stroke are not known. This clinical pilot study examined whether higher or lower frequencies are more effective for improving fine motor control of the hand in a chronic post-stroke population. A one-month, 4x/week in-home regimen of either a high frequency (40Hz) or low frequency (20Hz) NMES program was applied to the hemiplegic thenar muscles of 16 persons with chronic stroke. Participants were identified a priori as having a low level of function (LF) or a high level of function (HF). Outcome measures of strength, dexterity, and endurance were measured before and after participation in the regimen. LF subjects showed no significant changes with either the high or the low frequency NMES regimen. HF subjects showed significant changes in strength, dexterity and endurance. Within this group, higher frequencies of stimulation yielded strength gains and increased motor activation; lower frequencies impacted dexterity and endurance. The results suggest that higher frequencies of stimulation could be more effective in improving strength and motor activation properties and that lower frequencies may impact coordination and endurance changes; results also indicate that persons with a higher functional level of recovery may respond more favorably to NMES regimens, but further study with larger patient groups is warranted.
登录
查看更多内容
DOI：
10.1016/s1052-3057(03)00042-9
发表时间：
2003-05-01
期刊：
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association
影响因子：
--
作者：
Kelly-Hayes, Margaret;Beiser, Alexa;Wolf, Philip A
通讯作者：
Wolf, Philip A
影响因子：
6.7
作者：
Cauraugh, JH;Summers, JJ
通讯作者：
Summers, JJ
影响因子：
2
作者：
Kong, Keng-He;Chua, Karen S. G.;Lee, Jeanette
通讯作者：
Lee, Jeanette
影响因子：
4.2
作者：
Lo, Albert C.;Guarino, Peter;Peduzzi, Peter
通讯作者：
Peduzzi, Peter
影响因子：
5.3
作者：
BIGLANDRITCHIE, B;JONES, DA;WOODS, JJ
通讯作者：
WOODS, JJ