الفهرس 
Title : Russian Current Versus Low-Frequency Pulsed Current In The Treatment Of chronic Non Specific Low Back Pain
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Abstract
This study was designed to compare the effect of Russian current with lowfrequency
pulsed current on multifidus muscle activation, lumbar lordosis, pain
intensity level and patient-reported perceived difficulty level during lumbopelvic
motor control tests (prone hip extension and active straight leg raise) in young
females with chronic nonspecific low back pain. Methods: sixty young females
(aged 18–32 years) with chronic non- specific low back pain were randomly
allocated to the Russian current (n = 20), low frequency pulsed current (n = 20), and
control (n = 20) groups. Each group received lumbar stabilization exercises. The
study participants received 12 treatment sessions over 6 weeks (2 days per week).
Multifidus activation, lumbar lordosis and pain intensity level were measured using a
pressure biofeedback unit, plastic flexicurve and the numerical pain rating scale
respectively.The patient-reported perceived difficulty level during prone hip
extension and active straight leg raising tests was measured using likert scale (5 point
scale). All outcomes measured at two time intervals (pre-treatment and post
treatment). Results: Between group analysis revealed a significant increase (p ˂
0.05) in multifidus activation in the Russian current group compared with the control
group posttreatment. No significant differences were observed between the low
frequency pulsed current and both Russian current and control groups (p ˃ 0.05). The
mean difference in lumbar lordosis angle was not statistically significant among the
study groups (P=.27). Pain intensity level significantly decreased (p ˂ 0.05) in both
the low frequency pulsed current and Russian current group compared with the
control group. However, no significant (p ˃ 0.05) difference was observed between
the low frequency pulsed current and Russian current groups. Participant-reported
perceived difficulty level during prone hip extension test revealed statistical
significant differences between the control group and both the Russian current
(P=.009) and low frequency pulsed current (P=.042) group post intervention.
Regarding the active straight leg raising test, there was a statistical significance
difference in participant-reported perceived difficulty level between the Russian
current and control groups (P=.023). However, there was non-significant difference
between low frequency pulsed current and both Russian current (P=.66) and control
group (P=.45).
Conclusion: This study reveals that the effect of the electrical currents is comparable
in increasing multifidus activation, changing in lumbar lordosis angle, decreasing
pain intensity level and improving motor control impairments in young females with
chronic non- specific low back pain. Furthermore, Russian current is more effective
than lumbar stabilization exercise alone in improving multifidus activation.