Forty patients of both sexes, aged between 50 and 60 years, were chosen from an outpatient vascular clinic in the El Sahel Education Hospital. Patients have been examined and referred to by a vascular specialist.
The participants were divided randomly into two groups of equal numbers. The study group got low-frequency TENS (4 Hz frequency, pulse duration 200 μs) which was administered through surface electrodes for 45 min per session, supramaximal stimulation for T12, L1, and L2 sympathetic ganglions that innervate the lower extremity for 45 min per session, three times per week and for 12 weeks. Control Group that received placebo stimulation as provided by the same TENS device but with a zero volt after 10 s of stimulation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
40
The Patients in group (A) received low-frequency TENS (frequency 4 Hz, pulse duration 200 μs,burst mode) was be applied through 2 output channels surface electrodes with an E2 TENS device, for 45 min per session, supramaximal stimulation to sympathetic ganglions in T12, L1, and L2, which innervate the lower extremity . For 45 min per session, three times per week, and for 12 weeks.
Faculty of Physical Therapy
Cairo, Egypt
Red cell distribution width (RDW)
Peripheral venous blood samples were obtained from each patient.
Time frame: change from baseline to after 12 weeks
Mean platelet volume(MPV)
Peripheral venous blood samples were obtained from each patient.
Time frame: change from baseline to after 12 weeks
Ankle peak systolic velocity (APSV)
is the mean of the peak systolic velocities of the anterior and posterior tibial arteries measured at the ankle level by doppler ultrasonography
Time frame: change from baseline to after 12 weeks
Arterial diameter
Diameter of lower limb arteries measured by doppler ultrasonography
Time frame: change from baseline to after 12 weeks
Actual claudication distance
Claudication pain distance was measured after running on a treadmill constant walking speed of 2 mile/hour at 0% grade, with gradual increases in grade of 2.0% every 2 minutes.
Time frame: change from baseline to after 12 weeks
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