[Purpose] The aim of this study was to determine the effect of low-frequency electrical
stimulation on fatigue recovery of the erector spinae with cumulative fatigue induced by
repeated lifting and lowering work. [Subjects] Thirty-two healthy men volunteered to
participate in this study and they were randomly divided into three groups: a MC group of
12 persons who underwent microcurrent, a TENS group of 10 persons who underwent
Transcutaneous electrical nerve stimulation, and a control group of 10 persons who only
rested. [Methods] Cumulative fatigue was induced and then, EMG, muscle tone, CK and LDH
serum levels of the erector spinae were measured. Each group then underwent the assigned
intervention and was re-measured. To analyze the differences in fatigue between before and
after the intervention, the paired t-test was conducted, while groups were compared using
analysis of covariance with a control group. [Results] The MC groups showed a significant
reduction 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 for
recovery from cumulative muscle fatigue while TENS had no effect.