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Electrostimulation has been used for many years in the rehabilitation of patients. There are low frequency currents, modulated at a frequency between 1 and 200Hz and medium frequency currents, modulated between 1,000 and 10,000Hz. Among these currents is low frequency functional electrical stimulation (FES) and medium frequency Russian and Aussie current. The aim of this study is to compare the different currents of low and medium frequency showing the most effective in the production of force. This is a literature review that included the databases SCIELO, LILACS, BVS, MEDLINE. Articles comparing low and medium frequency currents without language restriction from 2008 to 2020 were included; Were used the keywords: Transcutaneous nerve electrostimulation, electrical stimulation therapy, muscle strength, pulsed current and russian current, as used in the researched articles. In the literature, 344 articles were found with the title relevant to the subject and correspondence to the descriptors. After analysis of abstracts, there were 10 articles that compared the currents. There is no consensus on the effectiveness of currents, with some articles showing divergent results as to the most effective current, and other articles claim that currents have no significant differences compared to each other. In articles that used a control group, most showed improvement when associated with electrostimulation compared to the group that did not use it. Another data demonstrated in the articles was discomfort, assessed by the Visual Analog Scale, which also did not show consistency in the results. It is not possible to state which of the currents is more effective due to the divergence of results found. [ABSTRACT FROM AUTHOR]

Background: Urinary incontinence is considered a common health problem among women and has broad repercussions on female daily life. This study aimed to identify the prevalence of urinary incontinence in women in Brazil. Method: Systematic review of studies on the prevalence of urinary incontinence in women in Brazil, published in the last 12 years (2000 to 2012), in PubMed, LILACS and SciELO, using the terms "urinary incontinence", "prevalence" and "Brazil". As well as the references cited in the articles obtained thorough the primary search of the aforementioned databases. Results: After a thorough examination, 22 articles were included in the study, conducted in four Brazilian regions (Southeast- 11, South- 5, Northeast- 4, Midwest-2). The study samples ranged from 1256 to 32 women. The study ages ranged from 12 to 80 years. The prevalence of female urinary incontinence varied between 5,8% and 72%. Conclusion: Despite the variation the values of prevalence found, the prevalence of urinary incontinence in women in Brazil is high. Further investigations are needed to increase the scope of information available on the prevalence of urinary incontinence in Brazilian women, since the concentration of studies occurred in the Southeast region, especially in metropolitan regions. [ABSTRACT FROM AUTHOR]