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Learn about core strengthening For information and demonstrations on core strengthening, visit the Wellness Wednesday booth from 10 a.m. to 1 p.m. Aug. 8 in the Children’s Hospital lobby. by Annie Cruzan MUSC Harper Student Wellness Center The “core” of the body is comprised of muscles throughout the lower back, abdominal region, trunk and pelvic girdle; everything between the ribs and hips. Some of these basic muscles include but are not limited to the rectus abdominis, internal and external obliques, transverse abdominis and the erector spinae. These muscles are responsible for the movement and stabilization of the spine in everyday activities.   More specifically, the rectus abdominis is responsible for the flexion and lateral movement of the spine. Basic exercises to work this part of the core could include abdominal bracing, abdominal bracing with heel taps, pelvic tilts, basic crunches, oblique crunches, reverse crunches and variations thereof.   The internal and external oblique muscles are responsible for the side to side movement of the trunk and spine. Exercises which incorporate these muscles could include oblique crunches and variations, side lying torso raises and reverse abdominal crunches.   The transverse muscle group acts like a brace surrounding the spine for stability. To contract this muscle group think of forcefully expiring, such as in coughing, while lifting, or the reaction that would result if you were suddenly punched in the gut. These muscles are worked when performing such exercises as abdominal bracing with heel taps, progressively adding extension of the extremities, and while performing a strength training routine (you have to think about it).   The erector spinae group is responsible for trunk extension, hyperextension of the back and lateral flexion of the spine. Exercises to work these muscles include prone extensions with variations (superman, quadruped, hip bridges, machine or stability ball spinal extensions, etc.), dead lifts and squats.   Stability balls and mats will be available for participants to practice with during Wellness Wednesday. Editor's note: The preceding column was brought to you on behalf of Health 1st. Striving to bring various topics and representing numerous employee wellness organizations and committees on campus, this weekly column seeks to provide MUSC, MUHA and UMA employees with current and helpful information concerning all aspects of health.     Friday, Aug. 3, 2007 Catalyst Online is published weekly, updated as needed and improved from time to time by the MUSC Office of Public Relations for the faculty, employees and students of the Medical University of South Carolina. Catalyst Online editor, Kim Draughn, can be reached at 792-4107 or by email, catalyst@musc.edu. Editorial copy can be submitted to Catalyst Online and to The Catalyst in print by fax, 792-6723, or by email to catalyst@musc.edu. To place an ad in The Catalyst hardcopy, call Island Publications at 849-1778, ext. 201.