Studies on Clinical Significance and Pathogenesis of Calcinosis in Progressive Systemic Sclerosis

Lumbar spine injuries in athletes

“…The higher rates seen in football players, gymnasts, wrestlers, and rowers are supported in a study of 4790 college athletes in which the incidence of lumbar spine injury was 7%; most were football players or gymnasts. 14,15,20 Interestingly, 80% of low-back injuries occurred during practice, 14% during preseason conditioning and 6% during actual competition; a little more than 50% of these injuries were acute in nature. 16,17 The forces on the lumbar motion segments are governed by the natural lordosis of this spinal segment; as a result, axial vectorial forces are directed both perpendicularly and horizontally to the disc.…”