Effects of low-frequency electrical stimulation on cumulative fatigue and
muscle tone of the erector spinae |
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| Authors: | Da-Haeng Kang Jae-Keun Jeon Joon-Hee Lee |
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| Affiliation: | 1) Department of Physical Therapy, Dongsin University, Republic of Korea;2) Department of Physical Therapy, Hanlyo University, Republic of Korea;3) Department of Physical Therapy, Cheongju University, Republic of Korea |
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| Abstract: | [Purpose] The aim of this study was to determine the effect of low-frequency electricalstimulation on fatigue recovery of the erector spinae with cumulative fatigue induced byrepeated lifting and lowering work. [Subjects] Thirty-two healthy men volunteered toparticipate in this study and they were randomly divided into three groups: a MC group of12 persons who underwent microcurrent, a TENS group of 10 persons who underwentTranscutaneous electrical nerve stimulation, and a control group of 10 persons who onlyrested. [Methods] Cumulative fatigue was induced and then, EMG, muscle tone, CK and LDHserum levels of the erector spinae were measured. Each group then underwent the assignedintervention and was re-measured. To analyze the differences in fatigue between before andafter the intervention, the paired t-test was conducted, while groups were compared usinganalysis of covariance with a control group. [Results] The MC groups showed a significantreduction in muscle fatigue and decreased muscle tone when compared to the control group.However, no significant differences were found between the TENS and control groups.[Conclusion] These results suggest that microcurrent stimulation was effective forrecovery from cumulative muscle fatigue while TENS had no effect.Key words: Fatigue, Microcurrent, Transcutaneous electrical nerve stimulation |
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