Condition: Obesity · Physical Inactivity · Aging · Sponsor: University of Lausanne
Insulin resistance is a crucial factor for the development of type 2 diabetes and a major health problem for older adults. It is the principal mechanism by which obesity is considered to increase the risk for type 2 diabetes and is a key feature of the metabolic syndrome. The elevated prevalence of obesity and type 2 diabetes in the older population has important consequences on the morbidity and mortality as well as on the economic burden on society. Controversy currently exists as to whether or not aging contributes to insulin resistance. Many potential factors confound the association between aging and insulin resistance, including obesity and physical inactivity. Ectopic lipid depositions, defined as an excess accumulation of triglycerides in non adipose tissues such as in the liver (intrahepatic lipids) and within the muscle fibers (intramyocellular lipids), are positively associated with obesity and insulin resistance. Furthermore, the accumulation of intracellular lipids is often cited as being a key determinant in the underlying mechanisms of insulin resistance. In addition of playing an important role in obesity and type 2 diabetes, these ectopic fat depositions are also observed in common conditions such as aging and physical inactivity. The intervention trial will test in skeletal muscle, liver and heart of sedentary obese volunteers, normal weight volunteers and masters athletes, the overall hypotheses that exercise improvement of fat oxidation capacity and/or d…
This description comes directly from the study's public registry record.
Francesca Amati, MD, PhD · +41 21 692 5552 · francesca.amati@unil.ch
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| University of Bern | Bern, Switzerland | Active Not Recruiting |
| UNIL and CHUV | Lausanne, Switzerland | Recruiting |
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Source record: clinicaltrials.gov/study/NCT01224886