Effects of Six Months of Moderate Resistance- Versus Endurance-Training on Muscle ATP Synthesis in First-Degree Relatives of Patients With Type 2 Diabetes (RECO2)

This study has been completed.
Sponsor:
Collaborators:
Hanusch Hospital
Karl-Landsteiner Institute for Endocrinology and Metabolism
Medical University of Vienna
Lund University
Fondazione C.N.R./Regione Toscana "G. Monasterio", Pisa, Italy
Information provided by:
Landsteiner Institut
ClinicalTrials.gov Identifier:
NCT01145092
First received: June 14, 2010
Last updated: June 15, 2010
Last verified: June 2010

June 14, 2010
June 15, 2010
February 2006
March 2009   (final data collection date for primary outcome measure)
Insulin Sensitivity [ Designated as safety issue: No ]
measured by oral glucose tolerance test
Same as current
Complete list of historical versions of study NCT01145092 on ClinicalTrials.gov Archive Site
  • incremental test power, oxygen uptake (VO2 in ml.kg-1.min-1), "aerobic threshold" (RCP= respiratory compensation point) [ Designated as safety issue: No ]
    This test was performed on an electronically braked cycle ergometer
  • ATP-Synthesis [ Designated as safety issue: No ]
    measured with 13C NMR
  • liver lipid content [ Designated as safety issue: No ]
    measured with 1H NMR
  • skeletal muscle lipid content [ Designated as safety issue: No ]
    measured by 1H NMR
Same as current
Not Provided
Not Provided
 
Effects of Six Months of Moderate Resistance- Versus Endurance-Training on Muscle ATP Synthesis in First-Degree Relatives of Patients With Type 2 Diabetes
Effects of Six Months of Moderate Resistance- Versus Endurance-Training on Muscle ATP Synthesis in First-Degree Relatives of Patients With Type 2 Diabetes

Life style intervention including diet and exercise is the recommended strategy for prevention of type 2 diabetes mellitus (T2DM). First-degree relatives of patients with type 2 diabetes mellitus have an increased risk of insulin resistance and a lifetime risk of developing type 2 diabetes of 40%- 80%. Poor physical fitness is a strong indicator of an increased risk of developing diabetes.

Long-term endurance exercise training has been shown to increase insulin sensitivity in sedentary young and elderly individuals, first degree relatives of patients with Type 2 diabetes, glucose intolerant obese, or Type 2 diabetic humans. In type 2 diabetic patients, non-diabetic individuals with IGT and sedentary adults after exercise training of different intensity, different duration and different frequency an increase of insulin sensitivity was found.

However, despite the vast knowledge concerning beneficial effects physical activity for the prevention of T2DM (and many other chronic metabolic disorders) to date wide ranging strategies have not been realized satisfactory. Regardless of age, ethnicity, sex or health status the lack of time is the primary reason for the failure to exercise on a regular basis (or is stated as primary reason). Therefore the investigators aimed at investigating whether a controlled endurance/resistance training twice a week over 6 month might be beneficial for healthy, non obese, first degree relatives with T2DM. Therefore the investigators measure parameters associated with the prevention of T2DM like insulin sensitivity, flux through fATPase and fCK, intramyocellular and hepatocellular lipids.

Not Provided
Interventional
Not Provided
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Prevention
  • Type 2 Diabetes Mellitus
  • Insulin Resistance
Behavioral: exercise training, endurance training
The endurance training group exercised on a cycle ergometer (90% of power output determined at the respiratory compensation point = RCP). The duration of each training unit was increased with time. The resistance group trained on 8 weight machines where the workload gradually increased every 2-3 weeks. At week 13 an additional physical examination, OGTT and spiro-ergometry for adjusting the training were performed.
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
16
March 2009
March 2009   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • First degree relatives of type 2 diabetic patients
  • Age: 18-50 years
  • BMI <30 kg/m2 (due to limited MR diameter)
  • Normal routine lab tests (blood cell count, kidney, liver, pancreas, thyroid and neuromuscular function)
  • Availability within the local area throughout the study
  • Ability to understand and sign the consent forms

Exclusion Criteria:

  • Current smoking
  • Present drug treatment
  • Regular exercise training
  • Contraindications for MRS studies: claustrophobia and metalliferous implants
  • Pregnancy
  • HIV or Hepatitis
  • Acute disease 2 weeks previous to the examination
  • Heart disease
  • Hypertension (RR>140/95)
  • Liver disease
  • Kidney disease
  • Pulmonary disease
  • Thyroid disease
Both
18 Years to 70 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Austria
 
NCT01145092
P15656
No
Landsteiner Institute
Landsteiner Institut
  • Hanusch Hospital
  • Karl-Landsteiner Institute for Endocrinology and Metabolism
  • Medical University of Vienna
  • Lund University
  • Fondazione C.N.R./Regione Toscana "G. Monasterio", Pisa, Italy
Study Director: Michael Roden, Prof. Institute for Clinical Diabetology, German Diabetes Center (Leibniz Center for Diabetes Research), Department of Metabolic Diseases, Heinrich-Heine University and University Clinics Düsseldorf, Germany
Landsteiner Institut
June 2010

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP