Electrical stimulation in healthy individuals

• Register: REBEC
• Last refreshed on: 29 April 2013
• Main ID: RBR-32ym5t
• Date of registration: 25/09/2011
• Primary sponsor: Universidade de Brasília - Brazil
• Public title: Electrical stimulation in healthy individuals
• Scientific title: Interferencial current produce peripheral vasodilation in healthy individuals - INTER: Interferential
• Date of first enrolment: 01/01/2010
• Target sample size: 11
• Recruitment status: data analysis completed
• URL: http://www.ensaiosclinicos.gov.br/rg/RBR-32ym5t/
• Study design: Clinical Trial, randomized, blinded with four arms

Countries of recruitment

Brazil

Contacts

• Name: Francisco Santos
• Affiliation: Universidade Federal de São Paulo

• Name: Francisco Santos
• Affiliation: Universidade Federal de São Paulo

Key inclusion & exclusion criteria

Inclusion criteria: Individuals of both sexes, with age group from 19 to 44 years, non-smokers, non-obese and free of any signs or symptoms of disease, as revealed by the medical history, physical examination and electrocardiogram at rest and during exercise
Exclusion criteria: Pregnancy, breastfeeding, alcohol or drug abuse and any medication with potential effects on the circulation

Age minimum: 19Y
Age maximum: 44Y
Gender: -

Health Condition(s) or Problem(s) studied

Study in healthy subjects
A08.800.050

Intervention(s)

There were two pairs of electrodes placed in the C7 and T4 levels. Interferential current was applied in mid-frequency for a period of 45 minutes, with current fixed frequency of 4000 Hz and AMF in 25 Hz, with intensity set at sensory level, without causing pain or muscle contraction.Each subject underwent the intervention twice on different days. Four groups were established: Interferential Current + Handgrip with Post Exercise Circulatory Occlusion (PECO); Interferential + Handgrip without PECO; Control + Handgrip with PECO; and Control + Handgrip without PECO.

Primary Outcome(s)

Calf blood flow (Units) and Calf vascular resistance (ml.min-1.100g-1)
Measurement of variables using venous occlusion plethysmography (TL 400, Hokanson, Bellevue, United States)

Calf blood flow and Calf vascular resistance

Secondary Outcome(s)

HR was measured using a monitor (Polar, Kempele, Florida, United States) and MAP was measured in the non-dominant arm using a calibrated oscillometric automatic device (Dinamap Model 1846SX / P, Critikon, Tampa, Florida, United States)

Mean Blood Pressure (MBP) and Heart rate (HR)

Secondary ID(s)

253/2009

Source(s) of Monetary Support

Universidade Federal de São Paulo - Brazil

Secondary Sponsor(s)

Hospital das Clinicas de Porto Alegre - Brazil