View clinical trials related to Immobilization, Tonic.
Filter by:Animal models suggest that heat stress increases protein content and facilitates the recovery of atrophied muscle after an immobilization period, or following a chemically induced muscle injury in rats. Thus, a recent study in human have reported that daily heat treatments, applied during 10 days of immobilization, reduced the loss of muscle mass. In addition of protecting muscle mass, repeated heat stress may also help to maintain cardiovascular fitness from the onset of injury through passive exposures in the condition that they sufficiently trigger an increase in body temperature, circulation and sweating. This study will investigate the benefits of using heat therapy to prevent deconditioning during immobilization in human.
The investigators want to establish a new model of acute febrile disease by mimicking the conditions seen in hospitalized patients in regards to inflammation, immobilisation and fasting. In this new model of disease, healthy young adults will be given lipopolysaccharide (LPS) to induce endotoxemia and inflammation/fever and then fast and bedrest for 36 hours. Glucose, fat and protein metabolism will be investigated using clamp technique and tracer methodology together with intracellular signalling pathway activation in muscle and fat biopsies. This new model of disease will later be used in another study to investigate different protein supplement´s effect on muscle waste during acute febrile disease.
The study includes healthy young habitually active subjects. All subjects are subjected to two weeks of immobilization of one leg followed by four weeks of training of both legs. The subjects are randomized to either one-leg training of the non-immobilized leg during the two-week immobilization period or to no training of the non-immobilized leg during the immobilization period. Measures include skeletal muscle morphology, markers of angiogenesis and apoptosis, muscle metabolic markers, vascular function, vascular proteins and performance.