NCT01524952

Brief Summary

Objective: It is unclear whether prolonged electrical muscle stimulation can improve cardiorespiratory fitness and reduce body fat in obese subjects. The purpose of this study is to investigate the effect of prolonged combined thermal and electrical muscle stimulation (cTEMS) on peak oxygen consumption (VO2 peak) and body composition. We will also investigate the biochemical effects and the resultant lipolysis-related gene expression changes in adipocytes. Methods:Eleven obese (BMI≥30) individuals will receive cTEMS in three 60-minute sessions per week for 8 weeks. Activity levels and dietary habits will be kept unchanged and controlled with an accelerometer and nutritional questionnaire. Before and after the stimulation period, functional capacity are assessed by VO2 peak, and body composition was assessed by dual-energy X-ray absorptiometry and bioelectrical impedance analyses. Lipolytic activity will be determined in abdominal adipose tissue by 24 hours of microdialysis on a sedentary day, and adipose tissue biopsies will be taken for the gene expression analysis.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
12

participants targeted

Target at below P25 for not_applicable obesity

Timeline
Completed

Started Dec 2010

Shorter than P25 for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2010

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2011

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2011

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

January 25, 2012

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 2, 2012

Completed
Last Updated

February 2, 2012

Status Verified

January 1, 2012

Enrollment Period

4 months

First QC Date

January 25, 2012

Last Update Submit

January 31, 2012

Conditions

Outcome Measures

Primary Outcomes (1)

  • Oxygen uptake

    Baseline and after 10 weeks

Secondary Outcomes (3)

  • Lipolytic activity

    Baseline and after 10 weeks

  • Gene expression in adipose tissue

    Baseline and after 10 weeks

  • Body composition

    Baseline and after 10 weeks

Study Arms (1)

Active

EXPERIMENTAL

cTEMS

Device: combined thermal and electrical muscle stimulation (cTEMS)

Interventions

cTEMS in three 60-minute sessions per week for 8 weeks

Active

Eligibility Criteria

Age30 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Obese (Body mass index; BMI ≥ 30 kg/m2),
  • sedentary subjects (\< 20 minutes of exercise \< 3 days per week).
  • the ability to undergo exercise testing.

You may not qualify if:

  • Pacemaker or implanted defibrillator,
  • regular medication,
  • cardiovascular disease,
  • pulmonary disease,
  • extensive dermatological disease or other primary diseases;
  • pregnant women;
  • and individuals who abuse alcohol or drugs were excluded from the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Haukeland University Hospital

Bergen, 5009, Norway

Location

MeSH Terms

Conditions

Obesity

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Jan Erik Nordrehaug, PhD

    University of Bergen

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 25, 2012

First Posted

February 2, 2012

Study Start

December 1, 2010

Primary Completion

April 1, 2011

Study Completion

May 1, 2011

Last Updated

February 2, 2012

Record last verified: 2012-01

Locations