Differences in Rheobase and Chronaxie between the Paretic and Non-Paretic Sides of Hemiplegic Stroke Patients: a Pilot Study
Differences in Rheobase and Chronaxie between the Paretic and Non-Paretic Sides of Hemiplegic Stroke Patients: a Pilot Study
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DOI：
10.1589/jpts.25.717
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发表时间：
2013-06-01
影响因子：
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通讯作者：
Kim, Junghwan
中科院分区：
文献类型：
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作者：
Lee, Won-Deok;Kim, Ju-Hyun;Kim, Junghwan
[目的]Rheobase和Timaxie用于确定肌肉退行性变。然而，对于中风患者，利用流变基和时轴来确定偏瘫侧肌肉退行性变还没有完全了解。因此，在这项研究中，我们检测了中风患者偏瘫侧股四头肌的电特性，并将它们与非偏瘫侧的值进行了比较。[方法]研究对象为6例脑卒中患者，其中女性3例，男性3例。将电刺激器的垫应用于股外侧和股内侧区域，测量流变基和时轴，直到收缩肌肉对电刺激的反应可见。[结果]偏瘫患者偏瘫侧Rheobase显著高于非偏瘫侧(P<0.05)。此外，与偏瘫患者的非瘫痪侧相比，偏瘫侧的时轴显著增加。[结论]提示卒中影响骨骼肌收缩的敏感性。因此，这一数据可能有助于我们了解中风患者的肌肉状况。
[Purpose] Rheobase and chronaxie are used to confirm muscle degeneration. For stroke patients, however, the uses of rheobase and chronaxie in determining paretic side muscle degeneration is not yet fully understood. Thus, in this study, we examined the electrical properties of the quadriceps muscles of stroke patients' paretic side and compared them with their respective values on the non-paretic side. [Method] The subjects were six stroke patients (three females, three males). The pad of an electrical stimulator was applied to the vastus lateralis and vastus medialis regions to measure rheobase and chronaxie until the contractive muscle response to electrical stimulation became visible. [Result] Rheobase was significantly increased on the paretic side compared to that of the non-paretic side of hemiplegic stroke patients. Furthermore, chronaxie was significantly increased on the paretic side compared to the non-paretic side of hemiplegic stroke patients. [Conclusion] These results suggest that stroke affects the sensitivity of skeletal muscle contraction. Therefore, this data may contribute to our understanding of the muscle status of stroke patients.