AIM: to evaluate in how much time the IC current accommodates and how many times this accommodation happens in 10 minutes using different patterns of variations in the frequency of stimulation: ∆F null= 0, ∆F low= 30% and ∆F high= 70%. MATERIALS AND METHODS: crossover trial, with 15 volunteers, with mean age of 22.53 ± 0.91 years, of both genders. The patients were submitted to IC for 10 minutes as bipolar with the electrodes longitudinally arranged on the vertebrae L1 and S1. THE EQUIPMENT PARAMETERS WERE: base frequency of 4000Hz, AMF 100 Hz, delivery ramp of, ΔF 1:1, ΔF depending on the day and the subgroup, for 10 minutes. The threshold of accommodation was evaluated as well as how many times the current accommodated in the total time of stimulation. RESULTS: Based on the time of the first accommodation and by the number of accommodation, no significant difference was observed (p>0.05). CONCLUSION: there was no effect with the variation of the different ∆F analyzed.
transcutaneous electric nerve stimulation; sensory thresholds; physical therapy modalities
