Microcurrent and Aerobic Exercise Effects on Abdominal Fat

NCT ID: NCT01853761

Last Updated: 2013-05-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-07-31

Study Completion Date

2011-09-30

Brief Summary

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The purpose of this study was to analyze microcurrent short and long term effects used with aerobic exercise on abdominal fat.

Detailed Description

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Nutritional patterns have been changed during XXI century with sugar and fat's high proportions that allied to sedentarism increased body fat. There is already a well establish relationship between total body fat excess, cardiometabolic diseases and increased mortality, knowing that abdominal fat (android pattern), different from body index, presents an additional influence to health risks. Women with their abdominal adipocytes (visceral fat) show an increased lipolitic activity that releases free fat acids to the systemic and portal circulation leading to a metabolic syndrome, increasing the risk of cardiovascular diseases Aerobic exercise is a way to decrease fat as it stimulates lipolysis through an increase in catecholamine's level resulting from a sympathetic system nervous activity raise. The most used exercise for lipid elimination is the prolonged aerobic moderate exercise with a minimum of 30 mn.

Nevertheless aerobic exercise practice reduce globally lipidic sources and not locally . Electrolipolysis using microcurrent has been used in clinical practice as a technique to reduce abdominal fat. This technique can be applied transcutaneously or percutaneously seeming that the former is not so effective as skin can be an obstacle to the current effect on visceral and subcutaneous fat .

Abdominal fat excess is associated with cardiometabolic diseases and can be prevented using microcurrent and aerobic exercise to stimulate lipolysis.

Conditions

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Obesity, Abdominal

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Exercise after, Transcutaneos, 25-10Hz

Experimental group 1 performed aerobic exercise just after microcurrent in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

Group Type EXPERIMENTAL

Exercise after

Intervention Type DEVICE

Aerobic exercise just after microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

Transcutaneos

Intervention Type DEVICE

Microcurrent device in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

25-10Hz

Intervention Type DEVICE

microcurrent device in the abdominal whith intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

25-50Hz microcurrent

Experimental group 2 performed aerobic exercise just after microcurrent in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 50Hz.

Group Type EXPERIMENTAL

Exercise after

Intervention Type DEVICE

Aerobic exercise just after microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

Transcutaneos

Intervention Type DEVICE

Microcurrent device in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

25-50Hz microcurrent

Intervention Type DEVICE

microcurrent device in the abdominal whith intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 50 Hz.

percutaneous microcurrent

Experimental group 3 performed aerobic exercise just after microcurrent in the abdominal region with four percutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

Group Type EXPERIMENTAL

Exercise after

Intervention Type DEVICE

Aerobic exercise just after microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

percutaneous microcurrent

Intervention Type DEVICE

Microcurrent device in the abdominal region with four percutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

25-10Hz

Intervention Type DEVICE

microcurrent device in the abdominal whith intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

Exercise at same time

Experimental group 4 performed aerobic exercise at the same time microcurrent in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

Group Type EXPERIMENTAL

Exercise at same time

Intervention Type DEVICE

Aerobic exercise at the same time microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

Transcutaneos

Intervention Type DEVICE

Microcurrent device in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

25-10Hz

Intervention Type DEVICE

microcurrent device in the abdominal whith intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

Control Group

Control group performed aerobic exercise just after microcurrent in the abdominal region with four transcutaneous electrodes in a parallel position, but microcurrent device was switched off.

Group Type PLACEBO_COMPARATOR

Exercise after

Intervention Type DEVICE

Aerobic exercise just after microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

Transcutaneos

Intervention Type DEVICE

Microcurrent device in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

Interventions

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Exercise after

Aerobic exercise just after microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

Intervention Type DEVICE

Exercise at same time

Aerobic exercise at the same time microcurrent in the abdominal region, intensity below the sensivity threshold and a maximum of 1 mA.

30 minutes of aerobic moderate-intensity exercise (50%VO2 max) using Karvonen´s formula, performed on a cycloergometer. Were used Borg scale (12-13) and Polar® heart monitors to control heart rate.

Intervention Type DEVICE

Transcutaneos

Microcurrent device in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

Intervention Type DEVICE

percutaneous microcurrent

Microcurrent device in the abdominal region with four percutaneous electrodes in a parallel position, intensity below the sensivity threshold and a maximum of 1 mA.

Intervention Type DEVICE

25-10Hz

microcurrent device in the abdominal whith intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 10 Hz.

Intervention Type DEVICE

25-50Hz microcurrent

microcurrent device in the abdominal whith intensity below the sensivity threshold and a maximum of 1 mA. Every 15 minutes changed from 25Hz to 50 Hz.

Intervention Type DEVICE

Other Intervention Names

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Aerobic exercise after microcurrent Aerobic exercise at same time microcurrent transcutaneos microcurrent 25-10Hz microcurrent

Eligibility Criteria

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Inclusion Criteria

* age between 18 and 30 years
* presenting a normal to pre-obese body mass index (18.5 - 29.9 Kg/m2)
* moderate physical activity level (between 600 and 3000 metabolic-minute/week (MET-min/week)) scored by International Physical Activity Questionnaire (IPAQ)

Exclusion Criteria

* submitted to other fat reduce procedure
* to show cardiovascular risk factors or diseases and/or any physical condition limiting aerobic exercise
* to present any contra indications to microcurrent and/or aerobic exercise
* to take medication that influence lipid metabolism, and to be pregnant
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Escola Superior de Tecnologia da Saúde do Porto

OTHER

Sponsor Role lead

Responsible Party

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Andreia Noites

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Andreia Noites, MSc

Role: PRINCIPAL_INVESTIGATOR

Escola Superior de Tecnologia da Saúde do Porto

Locations

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Andreia Noites

Vila Nova de Gaia, Porto District, Portugal

Site Status

Andreia Noites

Vila Nova de Gaia, Porto District, Portugal

Site Status

Countries

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Portugal

References

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Despres JP, Lemieux I. Abdominal obesity and metabolic syndrome. Nature. 2006 Dec 14;444(7121):881-7. doi: 10.1038/nature05488.

Reference Type BACKGROUND
PMID: 17167477 (View on PubMed)

Donnelly JE, Blair SN, Jakicic JM, Manore MM, Rankin JW, Smith BK; American College of Sports Medicine. American College of Sports Medicine Position Stand. Appropriate physical activity intervention strategies for weight loss and prevention of weight regain for adults. Med Sci Sports Exerc. 2009 Feb;41(2):459-71. doi: 10.1249/MSS.0b013e3181949333.

Reference Type BACKGROUND
PMID: 19127177 (View on PubMed)

Ribeiro-Filho FF, Faria AN, Azjen S, Zanella MT, Ferreira SR. Methods of estimation of visceral fat: advantages of ultrasonography. Obes Res. 2003 Dec;11(12):1488-94. doi: 10.1038/oby.2003.199.

Reference Type BACKGROUND
PMID: 14694213 (View on PubMed)

Hamida ZH, Comtois AS, Portmann M, Boucher JP, Savard R. Effect of electrical stimulation on lipolysis of human white adipocytes. Appl Physiol Nutr Metab. 2011 Apr;36(2):271-5. doi: 10.1139/h11-011.

Reference Type BACKGROUND
PMID: 21609289 (View on PubMed)

Other Identifiers

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AN-001

Identifier Type: -

Identifier Source: org_study_id

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