Publications: • Karpoff L, Vinet A, Schuster I, Oudot C, Goret L, Dauzat M, Obert P, Perez-Martin A. Abnormal vascular reactivity at rest and exercise in obese boys. Obesity. 2009, 17(10):1878-83. (Impact factor: 4.284). • Schuster I, Karpoff L, Perez-Martin A, Oudot C, Startun A, Rubini M, Obert P, Vinet A. Cardiac function during exercise in obese prepubertal boys: effect of degree of obesity. Eur J Clin Invest. 2009, (2):94-102. (Impact factor: 3.018).