Correct the crunch Published Dec. 8, 2010 By 28th Bomb Wing Health and Wellness Center ELLSWORTH AIR FORCE BASE, S.D. -- The Health and Wellness Center is sponsoring a class designed to help Airmen improve their crunch form, Dec. 17 from 9 a.m. until 10. The class will also assist in improving the number of crunch repetitions an Airman can do. For more information, contact the HAWC at (605) 385-2349.