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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effects of the carrier frequency of interferential current on pain modulation in patients with chronic nonspecific low back pain: a protocol of a randomised controlled trial

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Author(s):
Correa, Juliana Barbosa [1] ; Pena Costa, Leonardo Oliveira [1] ; Bastos de Oliveira, Naiane Teixeira [1] ; Sluka, Kathleen A. [2] ; Liebano, Richard Eloin [1]
Total Authors: 5
Affiliation:
[1] Univ Cidade Sao Paulo UNICID, Masters & Doctoral Programs Phys Therapy, Sao Paulo - Brazil
[2] Univ Iowa, Coll Med, Grad Program Phys Therapy & Rehabil Sci, Iowa City, IA - USA
Total Affiliations: 2
Document type: Journal article
Source: BMC MUSCULOSKELETAL DISORDERS; v. 14, JUN 27 2013.
Web of Science Citations: 9
Abstract

Background: Low back pain is an important public health problem that is associated with poor quality of life and disability. Among the electrophysical treatments, interferential current (IFC) has not been studied in patients with low back pain in a high-quality randomised controlled trial examining not only pain, but pain mechanisms and function. Methods/design: A three-arm randomised controlled trial with patient and assessor blinded to the group allocation. One hundred fifty patients with chronic, nonspecific low back pain from outpatient physical therapy clinics in Brazil. The patients will be randomly allocated into 3 groups (IFC 1 kHz, IFC 4 kHz or Placebo IFC). The interferential current will be applied three days per week (30 minutes per session) over four weeks. Primary outcome: Pain intensity. Secondary outcomes: The pressure pain threshold, global impression of recovery, disability, function, conditioned pain modulation and temporal summation of pain, discomfort caused by the current. All outcomes will be measured at 4 weeks and 4 months after randomisation. The between-group differences will be calculated by using linear mixed models and Tukey's post-hoc tests. Discussion: The use of a placebo group and double-blinding assessor and patients strengthen this study. The present study is the first to compare different IFC carrier frequencies in patients with chronic low back pain. (AU)

FAPESP's process: 12/13910-2 - Effects of carrier frequency of interferential current on modulation of pain and central hypersensitivity in patients with nonspecific chronic low back pain: randomized controlled trial
Grantee:Richard Eloin Liebano
Support Opportunities: Regular Research Grants