Lee Won-Deok, Kim Ju-Hyun, Lee Jeong-Uk, Kim Mee-Young, Lee Lim-Kyu, Yang Seung-Min, Jeon Hye-Joo, Lee Tae-Hyun, Kim Junghwan
Laboratory of Health Science and Nanophysiotherapy, Department of Physical Therapy, Graduate School, Yongin University.
J Phys Ther Sci. 2013 Jun;25(6):717-9. doi: 10.1589/jpts.25.717. Epub 2013 Jul 23.
[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.
[目的] 基强度和时值用于确认肌肉变性。然而，对于中风患者，基强度和时值在确定患侧肌肉变性方面的应用尚未完全明确。因此，在本研究中，我们检测了中风患者患侧股四头肌的电特性，并将其与非患侧的相应值进行比较。[方法] 受试者为6名中风患者（3名女性，3名男性）。将电刺激器的电极片置于股外侧肌和股内侧肌区域，测量基强度和时值，直至观察到肌肉对电刺激的收缩反应。[结果] 与偏瘫中风患者的非患侧相比，患侧的基强度显著增加。此外，与偏瘫中风患者的非患侧相比，患侧的时值也显著增加。[结论] 这些结果表明中风会影响骨骼肌收缩的敏感性。因此，这些数据可能有助于我们了解中风患者的肌肉状态。
