Leave a Comment / By Becky Kohl / November 7, 2020 Curl Up with Shoulders on Swiss Ball Core strengthening exercises prevent back injury. If you have any health conditions ask your health care provider if these exercises are right for you. MedBridge, Inc. (2020, August 3). Resources: Exercises. MedBridge home program. Becky KohlBecky Kohl, Doctor of Physical Therapy