^*Department of Human Biology, University of Cape Town, Cape Town, South Africa

^†Division of Endocrinology and Metabolism, Georgetown University Medical Center, Washington, DC

This position statement was approved and endorsed by the IMMDA Body on May 6, 2006 in Barcelona, Spain. The lay statement for immediate release was editorially prepared by Lewis Maharam, MD, FACSM (Chair), Arthur Siegel, MD, Marvin Adner, MD, W. Bruce Adams, MD, Rudra Sabaratnam, MD, and Pedro Pujol, MD, FACSM.

Reprints: Tamara Hew-Butler, DPM, UCT/MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, P.O. Box 115, Newlands 7725, South Africa (e-mail: [email protected])

Received for publication May 12, 2006; accepted May 26, 2006

IMMDA address: Lewis G. Maharam, MD, IMMDA Board of Governors at 24 West 57th Street, 6th floor, New York, NY 10019 (e-mail: [email protected]).