Effectiveness of the Transcutaneous Electrical Nerve Stimulation in Dysmenorrhea

This study has been completed.
Information provided by:
Universidade Federal do Piauí
ClinicalTrials.gov Identifier:
First received: October 11, 2011
Last updated: October 18, 2011
Last verified: May 2011
Hypothesis: What is the best modulation of pulse frequency in transcutaneous electrical nerve stimulation in dysmenorrhea? Purpose: To determine the effect of hypoalgesia frequency modulation pulse by transcutaneous electrical nerve (TENS) in dysmenorrhea. Methods: A controlled clinical study and prospective developed at the School of Physiotherapy Clinic / UFPI. Forty students were randomized into four distinct groups of the modulation frequency TENS: group 1 - 100 Hz, 100μs, group 2 - 4 Hz, 100μs, group 3 - placebo (apparatus off), group 4 - placebo induced (2 Hz, 40μs). All were initially evaluated by a questionnaire developed for the study, the visual analogue scale (VAS) (before, after 20, 30, 40, 50, 60 minutes) and the McGill Pain Questionnaire (before and after 20 minutes). The total duration of TENS application was 20 minutes and all protocols were performed in a single session. The analysis of variance (One-way ANOVA) followed by the Tukey procedure was applied to identify differences between experimental groups for each variable analyzed. The level of significance was p< 0,05.

Condition Intervention
Device: transcutaneous electrical nerve stimulation

Study Type: Interventional
Study Design: Primary Purpose: Treatment
Official Title: Investigation of the Effectiveness of Different Modulations of Pulse Frequency Transcutaneous Electrical Nerve Stimulation in Dysmenorrhea

Further study details as provided by Universidade Federal do Piauí:


Ages Eligible for Study:   16 Years to 33 Years
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • be the first or second day of menstruation
  • dysmenorrhea present at the time of application of TENS
  • not having undergone any procedure analgesic six hours before the application of TENS

Exclusion Criteria:

  • not to mention dysmenorrhea at the time of evaluation
  • pregnant women
  • were using some method of hormonal contraception on an ongoing basis
  • had sensory deficits or cognitive and cases of contraindication to TENS application.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01455285

School of Physiotherapy Clinic UFPI / Campus Minister Reis Velloso
Parnaíba, Piauí, Brazil, 64202-020
Sponsors and Collaborators
Universidade Federal do Piauí
  More Information

ClinicalTrials.gov Identifier: NCT01455285     History of Changes
Other Study ID Numbers: 0377.0.045.000-10 
Study First Received: October 11, 2011
Last Updated: October 18, 2011
Health Authority: Brazil: National Committee of Ethics in Research

Keywords provided by Universidade Federal do Piauí:
transcutaneous electrical nerve stimulation (TENS
pain visual analog scale
McGill pain questionnaire

Additional relevant MeSH terms:
Menstruation Disturbances
Pathologic Processes
Pelvic Pain
Signs and Symptoms

ClinicalTrials.gov processed this record on May 01, 2016