1. Department of Physiology (N.T.B., C.G., F.A.), School of Biology and Medicine, University of Lausanne, Lausanne CH-1005, Switzerland
2. Department of Clinical Research, Magnetic Resonance Spectroscopy, and Methodology (A.B., R.K., C.B.), University of Bern, CH-3010 Bern, Switzerland
3. Nestle Institute of Health Sciences (M.B., C.C.), Lausanne CH-1015, Switzerland
4. Service of Endocrinology, Diabetes, and Metabolism (A.D., F.A.), CH-1011 Lausanne, Switzerland
5. Service of Cardiology (L.S.), CH-1011 Lausanne, Switzerland
6. Center for Bone Disease (D.H.), CH-1011 Lausanne, Switzerland
7. Sports Medicine Unit (G.G.), University Hospital, CH-1011 Lausanne, Switzerland
8. Endocrinology and Metabolism Research Center (F.A.), School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213