Haff, G. Gregory1; Stone, Michael1; O'Bryant, Harold S.1; Harman, Everett2; Dinan, Chris1; Johnson, Robert1; Han, Ki-Hoon2
1Biomechanics Laboratory, Appalachian State University, Boone, North Carolina 28608; 2U.S Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760-5007