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临床试验/NCT02110927
NCT02110927已完成不适用

Microcurrent and Aerobic Exercise Effects in Glycerol, Catecholamines, Energetic Source and Muscle Activity

Escola Superior de Tecnologia da Saúde do Porto1 个研究点 分布在 1 个国家目标入组 100 人开始时间: 2014年2月1日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
已完成
入组人数
100
试验地点
1
主要终点
Change in electromyographic activity

研究概览

简要总结

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

详细描述

Nutritional patterns have been changed during twenty-first century with sugar and fat's high proportions that allied to sedentary lifestyle 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 lipolytic 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 minutes.

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.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Prevention
盲法
Double (Participant, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 30 Years(Adult)
性别
All
接受健康志愿者
是

入选标准

  • •age between 18 and 30 years.

排除标准

  • •submitted to other fat reduce procedure, to show cardiovascular risk factors or diseases and/or any physical condition limiting aerobic exercise. To present any contraindications to microcurrent and/or aerobic exercise, to take medication that influence lipid metabolism, and to be pregnant.

研究组 & 干预措施

Transcutaneous microcurrent

Experimental

This group performed aerobic exercise just after microcurrent in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensitivity threshold and a maximum of 1 milliampere (mA). Every 20 minutes changed from 25 hertz (Hz) to 10 Hz

干预措施: Transcutaneous microcurrent (Device)

Control group

Placebo Comparator

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.

干预措施: Aerobic exercise (Device)

Transcutaneous microcurrent

Experimental

This group performed aerobic exercise just after microcurrent in the abdominal region with four transcutaneous electrodes in a parallel position, intensity below the sensitivity threshold and a maximum of 1 milliampere (mA). Every 20 minutes changed from 25 hertz (Hz) to 10 Hz

干预措施: Aerobic exercise (Device)

结局指标

主要结局

Change in electromyographic activity

时间窗: 5 minutes before and after microcurrent

Recording the surface electrical activity produced by rectus abdominis and external oblique in front bridge and side bridge exercise, respectively.

Change in catecholamines and glycerol concentrations

时间窗: 10 minutes before the interventions, after interventions (duration of interventions - 90 minutes) and after 24 hours

Blood analysis collection was carried out with help from an clinical analysis technician. The volunteers were not fasting.

Change in proportion of energy source

时间窗: Immediately before (for 3 minutes) and during exercise (duration of exercise - 50 minutes)

K4b2 (COSMED ®) was used for analysis of cardiopulmonary gas exchange in real time.

次要结局

  • Suprailiac, vertical and horizontal abdominal skinfolds(20 minutes before the interventions)
  • Perimeters measurements(20 minutes before the interventions)
  • Subcutaneous abdominal fat and visceral abdominal fat(20 minutes before the interventions)
  • Change in cholesterol, triglycerides and glucose concentrations(10 minutes before the interventions, after interventions (duration of interventions - 90 minutes))

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Andreia Noites

Professor

Escola Superior de Tecnologia da Saúde do Porto

研究点 (1)

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