Muscle, bone, and the Utah paradigm: a 1999 overviewFROST, HAROLD M.Medicine & Science in Sports & Exercise: May 2000 - Volume 32 - Issue 5 - p 911-917 Basic Sciences: Reviews Abstract Author Information FROST, H. M. Muscle, bone, and the Utah paradigm: A 1999 overview. Med. Sci. Sports Exerc., Vol. 32, No. 5, pp. 911–917, 2000. The still-evolving Utah paradigm of skeletal physiology supplements former ideas about the control of postnatal bone strength and “mass” in health and disease, on earth and in orbit, and as functions of physical activities including sports. In its view, peak muscle forces on bone dominate control of the biologic mechanisms that control changes in our postnatal whole-bone strength and mass. This contrasts with former ideas that chiefly nonmechanical factors dominate that control and mechanical factors have little influence on it. The newer view begs the question of how such a bone-muscle relationship would work, and the Utah paradigm offers plausible explanations for that. Whereas many biomechanicians, orthopedists, and sports medicine experts might find the newer view sensible, some people in other disciplines may not. This article summarizes some evidence that support the Utah paradigm and the above-stated view and explores some of the paradigm’s features and implications. Department of Orthopaedic Surgery, Southern Colorado Clinic, Pueblo, CO Submitted for publication January 1999. Accepted for publication June 1999. Address for correspondence: Dr. Harold M. Frost, Department of Orthopaedic Surgery, Southern Colorado Clinic, 126 North Mechanic Street, Pueblo, CO 81003. © 2000 Lippincott Williams & Wilkins, Inc.